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Polar Grit X Pro Review | 126 Data compared

Avg. price: ~£280
Screen size: 1.20 inch
Battery life: 7 day/s
Display type: MIP LCD

Polar Grit X Pro review. Compare 126 technical specifications and user reviews to see how it ranks among smartwatches and if it is worth buying.

6.9

Good

6.6

Good

8.7

Excellent

Best prices in UK

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Best rankings

#3 in Best Polar Smartwatches
#105 in Best Rugged Smartwatches
#137 in Best Sport Smartwatches
#181 in Best Smartwatches For iPhone
#184 in Best Smartwatches For Android
#184 in Best Android Smartwatches For Men
#184 in Best Android Smartwatches For Women
#203 in Best GPS Smartwatches
#210 in Best Smartwatches
#236 in Best Smartwatches For Quality-Price Ratio

Verdict

The Polar Grit X Pro is a premium outdoor multisport watch engineered for extreme durability, featuring a 47mm stainless steel case, scratch-resistant sapphire glass, and MIL-STD-810G military-grade testing with 100m water resistance. Key specifications include a 1.2-inch always-on transflective memory-in-pixel (MIP) display (240x240 resolution), a 346 mAh battery providing up to 40 hours of full GPS/HR tracking or 7 days in watch mode, and advanced sensors for barometric altitude and Polar Precision Prime heart rate monitoring. Main pros include its rugged build, reliable turn-by-turn navigation via Komoot, and comprehensive recovery tools like Nightly Recharge and Leg Recovery tests. However, notable cons include a sometimes laggy touchscreen interface, the lack of internal music storage or contactless payments, and a display that can appear dim indoors compared to modern AMOLED competitors.

Technical Specifications of smartwatch Polar Grit X Pro

Overall score

6.9

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Popularity

What it is: An indicator based on the number of reviews received by the smartwatch.

When it matters: When you prefer to purchase a product chosen and reviewed by many other consumers.

Health

6.0

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Brand name

What it is: The company that designs, sells, and supports the watch.

When it matters: When brand ecosystem, style, or support matters to you.

Importance: MEDIUM

Polar

Heart rate monitor

What it is: A built-in sensor that measures your pulse directly from the wrist.

When it matters: When you want health data from your wrist during the day or night.

Importance: HIGH

Blood oxygen monitoring

What it is: A wrist-based feature that estimates blood oxygen saturation over time.

When it matters: When you want health data from your wrist during the day or night.

Importance: HIGH

ECG

What it is: The ability to record a single-lead electrocardiogram from the wrist.

When it matters: When you want health data from your wrist during the day or night.

Importance: HIGH

Irregular heart rate warnings

What it is: Notifications that flag heart-rate patterns which appear unusually irregular.

When it matters: When you want health data from your wrist during the day or night.

Importance: MEDIUM

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Fitness

9.7

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Accelerometer

What it is: A motion sensor that measures acceleration, steps, gestures, and general movement.

When it matters: When you track workouts and want better training data.

Importance: MEDIUM

Barometer

What it is: A pressure sensor used for altitude changes, elevation estimates, and weather-related context.

When it matters: When you run, ride, hike, or navigate without relying on your phone.

Importance: MEDIUM

Gyroscope

What it is: A motion sensor that measures rotation and helps interpret wrist movement more accurately.

When it matters: When you track workouts and want better training data.

Importance: MEDIUM

Cadence sensor

What it is: A sensor input used to measure step or pedal rhythm during training.

When it matters: When you track workouts and want better training data.

Importance: MEDIUM

Distance tracking

What it is: The ability to measure how far you move during walks, runs, rides, or other activities.

When it matters: When you track workouts and want better training data.

Importance: MEDIUM

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Battery

7.4

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Battery life

What it is: The typical endurance the watch can deliver on a full charge under the stated usage pattern.

When it matters: When you do not want to charge the watch too often.

Importance: HIGH

Good value: >=7 days

Battery life in training mode

What it is: The expected endurance while workout tracking and related training functions are active.

When it matters: When you do not want to charge the watch too often.

Importance: HIGH

Good value: >=36.8 h

Battery life with GPS on

What it is: The expected runtime when satellite tracking stays active throughout use.

When it matters: When you do not want to charge the watch too often.

Importance: HIGH

Good value: >=35 h

Battery power

What it is: The battery capacity, usually measured in milliampere-hours (mAh).

When it matters: When you do not want to charge the watch too often.

Importance: HIGH

Good value: >=397 mAh

Charge time

What it is: The time needed to recharge the battery from empty to full or to a stated percentage.

When it matters: When you want to top up the battery quickly.

Importance: HIGH

Good value: <=102 min

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Smart features

3.9

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Operating system

What it is: The software platform that runs the watch interface, apps, and core functions.

When it matters: When you care about apps, features, and long-term support.

Importance: HIGH

Software update frequency

What it is: Shows how actively the watch is still updated: regular means ongoing updates throughout active support, occasional means updates every few months or only from time to time, and ended means active software support has mostly stopped.

When it matters: When you care how actively the watch is still supported with fixes, patches, and new features.

Importance: MEDIUM

Third-party app support

What it is: Support for installing or using apps from developers beyond the watch maker.

When it matters: When you care about apps, features, and long-term support.

Importance: MEDIUM

Notifications

What it is: Mirroring of calls, messages, apps, or other alerts on the watch.

When it matters: When you want to check alerts without taking out your phone.

Importance: MEDIUM

Voice assistant support

What it is: Support for a voice assistant that can answer queries or trigger actions from the wrist.

When it matters: When you want to control the watch or reply without typing.

Importance: MEDIUM

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Connectivity

5.3

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Cellular module

What it is: Built-in mobile connectivity that can keep the watch online away from the phone.

When it matters: When you want calls, messages, or data without your phone nearby.

Importance: HIGH

SIM cards

What it is: The number or type of SIM options the watch accepts for cellular service.

When it matters: When you want calls, messages, or data without your phone nearby.

Importance: LOW

Good value: eSIM support

0

GPS

What it is: Built-in satellite positioning that lets the watch record location during outdoor activity.

When it matters: When you run, ride, hike, or navigate without relying on your phone.

Importance: HIGH

Galileo support

What it is: Support for Galileo satellites alongside other positioning systems.

When it matters: When you run, ride, hike, or navigate without relying on your phone.

Importance: MEDIUM

Compass

What it is: A directional sensor that helps the watch determine heading and orientation.

When it matters: When you run, ride, hike, or navigate without relying on your phone.

Importance: MEDIUM

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Display & Design

7.2

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Screen size

What it is: The diagonal measurement of the visible display area, usually expressed in inches.

When it matters: When you want the screen to be easy to read at a glance.

Importance: HIGH

Good value: >=1.5 inch

Display type

What it is: The screen technology used by the watch, such as AMOLED, OLED, or memory-in-pixel LCD.

When it matters: When you want the screen to be easy to read at a glance.

Importance: HIGH

Resolution

What it is: The total number of pixels available on the watch display.

When it matters: When you want the screen to be easy to read at a glance.

Importance: MEDIUM

Good value: >=416 x 416

Pixel density

What it is: The number of pixels packed into each inch of the display.

When it matters: When you want the screen to be easy to read at a glance.

Importance: MEDIUM

Good value: >=326 ppi

Display brightness

What it is: The peak brightness the display can reach, usually expressed in nits.

When it matters: When you want the screen to stay readable outdoors and in strong sunlight.

Importance: HIGH

Good value: >=1000 nits

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Hardware

3.9

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CPU speed

What it is: The clock speed of the watch processor, usually expressed in GHz or MHz.

When it matters: When you want apps and menus to feel smooth.

Importance: MEDIUM

Good value: Modern standard

Processor model

What it is: The processor model is the chipset or SoC that powers the watch's performance, connectivity, and efficiency.

When it matters: When you care about app responsiveness, platform generation, and long-term feature support.

Importance: LOW

Good value: modern smartwatch chipset

?

RAM

What it is: The amount of working memory available for apps, watch faces, and background tasks.

When it matters: When you want apps and menus to feel smooth.

Importance: MEDIUM

Good value: >=1 GB

?

Internal storage

What it is: Built-in storage for apps, music, watch faces, and other local data.

When it matters: When you want more room for apps, music, or offline data.

Importance: MEDIUM

Good value: >=8 GB

External memory slot

What it is: A slot for expandable storage such as a memory card, if the watch provides one.

When it matters: When you want more room for apps, music, or offline data.

Importance: LOW

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Polar Grit X Pro vs the average smartwatch

Why is Polar Grit X Pro better than the average smartwatch?

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Stronger display glass
Polar Grit X Pro uses sapphire display glass, while the average smartwatch uses mineral glass.
What it is: The glass material or protective cover used over the display.
When it matters: When you want the screen to be easy to read at a glance.
Importance: MEDIUM
Good value: Sapphire or Gorilla Glass
Polar Grit X Pro uses sapphire display glass, while the average smartwatch uses mineral glass.sapphire vs mineral glass
120 h longer training battery life
Polar Grit X Pro lasts longer in training mode than the average smartwatch (140 h vs 20 h). The average smartwatch lasts 20 h.
What it is: The expected endurance while workout tracking and related training functions are active.
When it matters: When you do not want to charge the watch too often.
Importance: HIGH
Good value: >=36.8 h
Polar Grit X Pro lasts longer in training mode than the average smartwatch (140 h vs 20 h). The average smartwatch lasts 20 h.140 h vs 20 h
Has temperature sensor
Polar Grit X Pro includes a temperature sensor, the average smartwatch does not. 22.3% of smartwatches include a temperature sensor.
What it is: A sensor that records skin or wrist temperature changes and longer-term trends.
When it matters: When you want health data from your wrist during the day or night.
Importance: MEDIUM
Polar Grit X Pro includes a temperature sensor, the average smartwatch does not. 22.3% of smartwatches include a temperature sensor.
Has HRV tracking
Polar Grit X Pro supports HRV tracking, the average smartwatch does not. 38.2% of smartwatches support HRV tracking.
What it is: Measurement of heart-rate variability, the change in timing between heartbeats.
When it matters: When you want health data from your wrist during the day or night.
Importance: MEDIUM
Polar Grit X Pro supports HRV tracking, the average smartwatch does not. 38.2% of smartwatches support HRV tracking.
Has readiness score
Polar Grit X Pro supports readiness scores, the average smartwatch does not. 18.4% of smartwatches support readiness scores.
What it is: A recovery-style score that combines recent activity, sleep, and body data into one summary.
When it matters: When you want health data from your wrist during the day or night.
Importance: MEDIUM
Polar Grit X Pro supports readiness scores, the average smartwatch does not. 18.4% of smartwatches support readiness scores.
Supports VO2 max
Polar Grit X Pro measures VO2 max, the average smartwatch does not. 49.3% of smartwatches measure VO2 max.
What it is: Estimated VO2 max, a fitness metric linked to aerobic capacity and endurance.
When it matters: When you track workouts and want better training data.
Importance: MEDIUM
Polar Grit X Pro measures VO2 max, the average smartwatch does not. 49.3% of smartwatches measure VO2 max.
Has multi-sport mode
Polar Grit X Pro includes a multi-sport mode, the average smartwatch does not. 49.4% of smartwatches include a multi-sport mode.
What it is: A training mode designed to handle multiple sports within a single session.
When it matters: When you track workouts and want better training data.
Importance: MEDIUM
Polar Grit X Pro includes a multi-sport mode, the average smartwatch does not. 49.4% of smartwatches include a multi-sport mode.
Has barometer
Polar Grit X Pro includes a barometer, the average smartwatch does not. 45.6% of smartwatches include a barometer.
What it is: A pressure sensor used for altitude changes, elevation estimates, and weather-related context.
When it matters: When you run, ride, hike, or navigate without relying on your phone.
Importance: MEDIUM
Polar Grit X Pro includes a barometer, the average smartwatch does not. 45.6% of smartwatches include a barometer.
Has temperature sensor
Polar Grit X Pro includes a temperature sensor, the average smartwatch does not. 22.3% of smartwatches include a temperature sensor.
Has HRV tracking
Polar Grit X Pro supports HRV tracking, the average smartwatch does not. 38.2% of smartwatches support HRV tracking.
Has readiness score
Polar Grit X Pro supports readiness scores, the average smartwatch does not. 18.4% of smartwatches support readiness scores.
Supports VO2 max
Polar Grit X Pro measures VO2 max, the average smartwatch does not. 49.3% of smartwatches measure VO2 max.
Has multi-sport mode
Polar Grit X Pro includes a multi-sport mode, the average smartwatch does not. 49.4% of smartwatches include a multi-sport mode.
Has barometer
Polar Grit X Pro includes a barometer, the average smartwatch does not. 45.6% of smartwatches include a barometer.
Has cadence sensor
Polar Grit X Pro includes a cadence sensor, the average smartwatch does not. 20.1% of smartwatches include a cadence sensor.
Has external HR monitor
Polar Grit X Pro supports external heart rate monitor compatibility, the average smartwatch does not. 41.3% of smartwatches support external heart rate monitor compatibility.
50 more exercise profiles
Polar Grit X Pro supports more exercise modes than the average smartwatch (130 vs 80). The average smartwatch supports 80 exercise modes.
120 h longer training battery life
Polar Grit X Pro lasts longer in training mode than the average smartwatch (140 h vs 20 h). The average smartwatch lasts 20 h.
15 h longer GPS battery life
Polar Grit X Pro lasts longer with GPS on than the average smartwatch (35 h vs 20 h). The average smartwatch lasts 20 h.
Has compass
Polar Grit X Pro includes a compass, the average smartwatch does not. 49.3% of smartwatches include a compass.
Supports Galileo
Polar Grit X Pro supports Galileo navigation, the average smartwatch does not. 38.7% of smartwatches support Galileo navigation.
Newer Bluetooth version
Polar Grit X Pro supports a newer Bluetooth version than the average smartwatch (5.3 vs 5.0). The average smartwatch uses 5.0.
Stronger display glass
Polar Grit X Pro uses sapphire display glass, while the average smartwatch uses mineral glass.
Has rugged design
Polar Grit X Pro has a rugged design, the average smartwatch does not. 34.5% of smartwatches have a rugged design.
Better case material
Polar Grit X Pro uses stainless steel, titanium, fiber-reinforced polymer for the case material, while the average smartwatch uses polycarbonate.
More frequent updates
Polar Grit X Pro receives occasional software updates, while the average smartwatch receives ended updates.

Display & Design

Why is Polar Grit X Pro worse than the average smartwatch?

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No blood oxygen
Polar Grit X Pro does not support blood oxygen monitoring, the average smartwatch does. 64.4% of smartwatches support blood oxygen monitoring.
No cycle tracking
Polar Grit X Pro does not support menstrual cycle tracking, the average smartwatch does. 64.6% of smartwatches support menstrual cycle tracking.
No smart scales
Polar Grit X Pro does not support smart scale compatibility, the average smartwatch does. 56.8% of smartwatches support smart scale compatibility.
No voice feedback
Polar Grit X Pro does not support voice feedback, the average smartwatch does. 62.1% of smartwatches support voice feedback.
No live tracking
Polar Grit X Pro does not support live tracking, the average smartwatch does. 89.7% of smartwatches support live tracking.
Basic display type
Polar Grit X Pro uses MIP LCD display technology, while the average smartwatch features AMOLED.
0.2 inch smaller screen size
Polar Grit X Pro has a smaller screen size than the average smartwatch (1.2 inch vs 1.40 inch). The average smartwatch screen is 1.40 inch.
No ambient light sensor
Polar Grit X Pro does not include an ambient light sensor, the average smartwatch does. 60.5% of smartwatches include an ambient light sensor.
20 m lower waterproof depth
Polar Grit X Pro has a shallower waterproof rating than the average smartwatch (30 m vs 50 m). The average smartwatch reaches 50 m.
Lower resolution
Polar Grit X Pro has a display resolution of 240x240, while the average smartwatch reaches 352x430.
34 g heavier weight
Polar Grit X Pro is heavier than the average smartwatch (79 g vs 45 g). The average smartwatch weighs 45 g.
43 ppi lower pixel density
Polar Grit X Pro has a lower pixel density than the average smartwatch (283 ppi vs 326 ppi). The average smartwatch display reaches 326 ppi.
1.4 mm thicker watch body
Polar Grit X Pro is thicker than the average smartwatch (13 mm vs 11.60 mm). The average smartwatch thickness is 11.60 mm.
5 mm wider watch width
Polar Grit X Pro is wider than the average smartwatch (47 mm vs 42.0 mm). The average smartwatch width is 42.0 mm.
No music playback
Polar Grit X Pro does not support music playback, the average smartwatch does. 53.9% of smartwatches support music playback.
Only remote phone music control; no on-watch playback/storage.
No call answering
Polar Grit X Pro does not support call answering, the average smartwatch does. 57% of smartwatches support call answering.
No voice commands
Polar Grit X Pro does not support voice commands, the average smartwatch does. 64.5% of smartwatches support voice commands.
No voice assistant
Polar Grit X Pro does not support voice assistants, the average smartwatch does. 68% of smartwatches support voice assistants.
No smart alarm
Polar Grit X Pro does not support a smart alarm, the average smartwatch does. 52.7% of smartwatches support this feature.
No camera remote control
Polar Grit X Pro does not include built-in camera remote control, the average smartwatch does. 85.2% of smartwatches that are equipped with a camera include built-in camera remote control.
No phone finder
Polar Grit X Pro does not include phone finder, the average smartwatch does. 94.6% of smartwatches include phone finder.
No speaker
Polar Grit X Pro does not include a built-in speaker, the average smartwatch does. 54.7% of smartwatches include a built-in speaker.
1 fewer microphones
Polar Grit X Pro has fewer microphones than the average smartwatch (0 vs 1). The average smartwatch includes 1 microphones.
Slower CPU speed
Polar Grit X Pro uses a CPU configuration of 0.12 GHz, while the average smartwatch uses 1 GHz.
3.97 GB less storage
Polar Grit X Pro offers less internal storage than the average smartwatch (0 GB vs 4 GB). The average smartwatch provides 4 GB of storage.
32 MB internal memory for training data.
No blood oxygen
Polar Grit X Pro does not support blood oxygen monitoring, the average smartwatch does. 64.4% of smartwatches support blood oxygen monitoring.
What it is: A wrist-based feature that estimates blood oxygen saturation over time.
When it matters: When you want health data from your wrist during the day or night.
Importance: HIGH
Polar Grit X Pro does not support blood oxygen monitoring, the average smartwatch does. 64.4% of smartwatches support blood oxygen monitoring.
No speaker
Polar Grit X Pro does not include a built-in speaker, the average smartwatch does. 54.7% of smartwatches include a built-in speaker.
What it is: An onboard speaker for calls, prompts, alarms, or media playback.
When it matters: When you want audio, calls, or voice features on the watch itself.
Importance: LOW
Polar Grit X Pro does not include a built-in speaker, the average smartwatch does. 54.7% of smartwatches include a built-in speaker.
No music playback
Polar Grit X Pro does not support music playback, the average smartwatch does. 53.9% of smartwatches support music playback.
Only remote phone music control; no on-watch playback/storage.
What it is: Playback of music or audio directly from the watch, with or without a phone nearby.
When it matters: When you want audio, calls, or voice features on the watch itself.
Importance: MEDIUM
Polar Grit X Pro does not support music playback, the average smartwatch does. 53.9% of smartwatches support music playback.
Basic display type
Polar Grit X Pro uses MIP LCD display technology, while the average smartwatch features AMOLED.
What it is: The screen technology used by the watch, such as AMOLED, OLED, or memory-in-pixel LCD.
When it matters: When you want the screen to be easy to read at a glance.
Importance: HIGH
Polar Grit X Pro uses MIP LCD display technology, while the average smartwatch features AMOLED.MIP LCD vs AMOLED
No call answering
Polar Grit X Pro does not support call answering, the average smartwatch does. 57% of smartwatches support call answering.
What it is: The ability to answer an incoming call directly from the watch.
When it matters: When you want to handle calls or alerts without taking out your phone.
Importance: LOW
Polar Grit X Pro does not support call answering, the average smartwatch does. 57% of smartwatches support call answering.
0.2 inch smaller screen size
Polar Grit X Pro has a smaller screen size than the average smartwatch (1.2 inch vs 1.40 inch). The average smartwatch screen is 1.40 inch.
What it is: The diagonal measurement of the visible display area, usually expressed in inches.
When it matters: When you want the screen to be easy to read at a glance.
Importance: HIGH
Good value: >=1.5 inch
Polar Grit X Pro has a smaller screen size than the average smartwatch (1.2 inch vs 1.40 inch). The average smartwatch screen is 1.40 inch.1.20 inch vs 1.40 inch
No voice commands
Polar Grit X Pro does not support voice commands, the average smartwatch does. 64.5% of smartwatches support voice commands.
What it is: The ability to control functions or start actions using spoken commands.
When it matters: When you want to control the watch or reply without typing.
Importance: MEDIUM
Polar Grit X Pro does not support voice commands, the average smartwatch does. 64.5% of smartwatches support voice commands.
No voice assistant
Polar Grit X Pro does not support voice assistants, the average smartwatch does. 68% of smartwatches support voice assistants.
What it is: Support for a voice assistant that can answer queries or trigger actions from the wrist.
When it matters: When you want to control the watch or reply without typing.
Importance: MEDIUM
Polar Grit X Pro does not support voice assistants, the average smartwatch does. 68% of smartwatches support voice assistants.

Display & Design

Graphic comparison of Polar Grit X Pro and other Smartwatches

Attribute category

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Third-party reviews

United States

(Reviews last updated: April 2026)

What customers like about Polar Grit X Pro?

Military-grade durability with a rugged design and scratch-resistant sapphire glass.
Comprehensive training and recovery analytics, including Training Load Pro and Nightly Recharge.
Highly reliable GPS performance and accurate heart rate monitoring for most outdoor activities.
Clean and data-rich Polar Flow companion app that outshines many competitors' ecosystems.
Long battery life, especially in standard smartwatch mode and power-saving GPS modes.
Lightweight and comfortable build despite its bulky, professional appearance.

What customers dislike about Polar Grit X Pro?

Sluggish and unresponsive touchscreen that frequently fails to register gestures.
Lack of essential modern smartwatch features such as contactless payments, offline music storage, or a robust app store.
Dated display quality with low resolution and relatively dim brightness compared to AMOLED competitors.
Limited navigation capabilities, offering only basic breadcrumb trails without full topographic maps.
Inconsistent sleep tracking that occasionally misidentifies periods of being awake as light sleep.
Significant price jump over previous models without substantial hardware innovation.

Expert reviews

zdnet.com

27/02/2026

Summary of the review

Polar Grit X Pro Titan review: Informed training, recovery, and testing on a premium watch Would you like a breakdown of how the Grit X Pro specifical...

The ZDNET review of the Polar Grit X Pro Titan highlights its position as a durable, premium multisport watch featuring a lightweight titanium bezel and sapphire glass. Pros include its 240x240 transflective display, excellent battery life, and comfortable design for 24/7 wear to track extensive recovery metrics. However, cons include a high price, the lack of an SpO2 sensor, and an underwhelming 240x240 resolution screen compared to AMOLED alternatives. The watch excels in training with advanced, actionable data for runners and outdoor enthusiasts, including Komoot turn-by-turn navigation and FuelWise nutrition tracking. While marketed for adventure, it acts more as a specialized training tool than a general-purpose smartwatch, lacking popular features like on-board music storage or contactless payments.

220triathlon.com

26/06/2025

Summary of the review

Polar Grit X Pro watch review

The Polar Grit X Pro is a durable, high-end multisport watch featuring a scratch-resistant sapphire glass lens,MIL-STD-810G military-grade construction, and a 40-hour battery life in full GPS mode. It improves upon the original Grit X by adding advanced performance tests, such as running and cycling tests and Hill Splitter, along with enhanced navigation through Komoot, though it relies on breadcrumb trails rather than detailed mapping. Key pros include the robust build, in-depth recovery, and sleep analysis, while cons include a sometimes laggy touchscreen, a display that lacks sharp contrast, and minimal functional upgrades over the original model. 220

livefortheoutdoors.com

04/09/2025

Summary of the review

Polar Grit X Pro Watch | tested & reviewed

The Polar Grit X Pro is a durable, MIL-STD-810G rated multisport watch designed for rugged outdoor use, featuring a sapphire glass lens and robust construction, while retaining core performance internals from the Vantage V2. It excels in navigation with Komoot turn-by-turn guidance and specialized trail tools like Hill Splitter and real-time, always-on outdoor data dashboards. While offering exceptional, in-depth recovery and training analytics, the device is limited by a sometimes laggy interface, underwhelming low-light screen brightness, and a lack of smartwatch features like internal music storage.

hoylesfitness.com

10/08/2025

Summary of the review

Polar Grit X Pro Review from a Personal Trainer

The Polar Grit X Pro is a durable, military-grade, and accurate fitness tracker, featuring a scratch-resistant sapphire screen and a battery life lasting 5–7 days, notes the review by Hoyles Fitness. Key advantages include highly accurate heart rate monitoring, robust activity tracking, and a comprehensive Polar Flow app for data analysis. However, the review cites limitations with the watch's performance during swimming, specifically mentioning inaccurate length tracking and heart rate lag. The device also lacks some advanced, modern smartwatch functionalities and does not feature a high-end AMOLED screen.

triathlete.com

20/10/2021

Summary of the review

A Detailed Look at the New Polar Grit X Pro

The Polar Grit X Pro is a durable, outdoor-focused multisport watch that upgrades the original model with sapphire glass, a robust bezel, and advanced training metrics like Recovery Pro and Running Power. Key strengths include actionable, on-wrist physiological data, specialized nutrition reminders via FuelWise, and reliable navigation features. However, the review notes significant drawbacks, specifically extreme interface lag, inconsistent battery life, a lack of modern smart features, and awkward manual transitions for multi-sport activities.

coachweb.com

09/11/2021

Summary of the review

Polar Grit X Pro Review

The Polar Grit X Pro is a rugged, high-end multisport watch designed for outdoor endurance athletes, featuring an extremely durable, scratch-resistant sapphire glass screen and a refined, compass-etched bezel. While praised for its robust, military-grade construction (MIL-STD-810G), the watch is limited by a dull, low-visibility transflective display and noticeable touchscreen lag. Key strengths include extensive training metrics like "Hill Splitter," reliable navigation with breadcrumb trails via Komoot, and superior sleep/recovery tracking. Key drawbacks highlighted by Coachweb include a lack of modern, high-tech features like onboard music storage or NFC payments, coupled with slower interface performance. The device also misses advanced, full-mapping capabilities found in some competitor products. However, its battery life remains a standout, offering up to 40 hours of full GPS training and 100 hours in power-saving modes. For the complete review, visit Coachweb.

techadvisor.com

07/12/2021

Summary of the review

Polar Grit X Pro Review: Toughened Up

The Polar Grit X Pro is a durable, high-end fitness tracker aimed at outdoor enthusiasts, featuring military-grade construction with sapphire glass and extensive training metrics. Pros include long battery life, advanced navigation tools, and reliable physical buttons, though it is limited by a sluggish touchscreen and a high price point. The device is geared toward serious athletes, lacking, for example, music storage and mobile payments, making it less suitable for users looking for a traditional smartwatch.

techradar.com

03/12/2021

Summary of the review

Polar Grit X Pro review

The Polar Grit X Pro is a rugged, high-end training watch that merges the original Grit X's outdoor capabilities with advanced software features from the Vantage V2, featuring a durable, scratch-resistant sapphire glass screen. Key pros include deep training analysis, FuelWise nutrition tracking, and improved navigation with route/elevation profiles, though the 1.2-inch display can be sluggish and unresponsive to touch. While offering a solid 40-hour GPS battery life, it functions primarily as a sports tool rather than a comprehensive smartwatch, lacking features like offline music or contactless payments.

dcrainmaker.com

05/10/2021

Summary of the review

Polar Grit X Pro GPS Watch In-Depth Review

The Polar Grit X Pro is a ruggedized iteration of the original Grit X, featuring enhanced durability with sapphire glass and an improved bezel, while incorporating software features from the Vantage V2 like advanced recovery tools and performance tests. It is specifically designed for endurance athletes, offering key upgrades in navigation, such as route elevation profiles and TrackBack functionality, alongside a solid 40-hour battery life in full GPS mode. While the watch excels in durability, the review notes the use of the same internal GPS/HR sensors as its predecessor and limitations in sensor connectivity and smart features, such as lacking contactless payments. For the full, detailed review, visit DC Rainmaker.

wareable.com

27/02/2026

Summary of the review

Polar Grit X Pro review Would you like a comparison of battery life or GPS accuracy benchmarks specifically from these tests?

The Polar Grit X is a lightweight, durable military-grade multisport watch designed for outdoor endurance, offering 40-hour GPS battery life and competitive pricing. Pros include the comprehensive Polar Flow ecosystem for deep training analysis, along with specific features like FuelWise, which aids with hydration and nutrition management. However, cons include the Hill Splitter, which can be laggy in detecting climbs, and a touchscreen that can be unresponsive. WareableKey drawbacks highlighted include the navigation system, which relies on Komoot and lacks full topographical maps compared to rivals. Furthermore, the Precision Prime optical heart rate sensor showed inconsistencies during high-intensity intervals. The watch also lacks advanced smartwatch features, such as built-in music or payment capabilities, focusing instead on core athletic metrics. WareableOverall, the review positions the Grit X as a strong tool for trail and endurance runners, particularly those seeking detailed analytics. It competes directly with Garmin's Fenix series by offering robust tracking at a lower price point. Wareable

runnersworld.de

11/11/2021

Summary of the review

Polar Grit X Pro Review

<2>The Polar Grit X Pro is a durable, premium multisport watch tailored for trail running, featuring military-grade MIL-STD-810G construction, sapphire glass, and a stainless steel bezel. It incorporates advanced performance and recovery metrics from the Vantage V2, including leg-recovery tests, Komoot navigation, and "always-on" outdoor dashboards. While excelling in deep training analytics and sleep tracking (Nightly Recharge), the device lacks modern smartwatch features like music storage or NFC payments and has a relatively dull display. Pros include high durability and detailed metrics, while cons involve the limited smart features and occasional, though infrequent, GPS inconsistencies.

computerbild.de

25/09/2022

Summary of the review

Polar Grit X Pro: Sports Watch Review

The Polar Grit X Pro is a durable, outdoor-focused multisport watch featuring scratch-resistant sapphire glass and MIL-STD-810G military-grade construction, designed to withstand extreme conditions. Key enhancements include a permanent barometer, compass, and daylight dashboard, alongside robust training tools like Recovery Pro and detailed sleep tracking. With a battery life of up to 40 hours in full GPS mode, the device also offers comprehensive Komoot-powered navigation with turn-by-turn guidance and a "track back" feature. Live However, the review notes significant limitations, specifically the lack of offline maps, which restricts navigation to breadcrumb trails. Additional drawbacks include a dim, sometimes hard-to-read display and a occasionally unresponsive touchscreen. Furthermore, the Grit X Pro lacks modern smartwatch functionality such as NFC contactless payments and offline music storage.

harlerunner.de

20/11/2021

Summary of the review

Polar Grit X Pro – Is it worth the upgrade?

The Harlerunner review positions the Polar Grit X Pro as a premium evolution of the original, distinguished by superior build quality, including a Sapphire glass lens and a rugged bezel. Key advancements include added software features from the Vantage V2, such as "Track Back," detailed elevation profiles, and the comprehensive "Always-On" outdoor dashboard for immediate data access. While praised for its robust design and reliable recovery metrics (Nightly Recharge), the review notes that the processor and user interface remain largely unchanged, leading to minor responsiveness lags. The device offers exceptional durability for trail running but may not offer enough performance upgrades for existing Grit X owners compared to new users. Ultimately, the Grit X Pro is lauded as a top-tier, data-driven outdoor watch, but it does not represent a massive technological leap over its predecessor.

bergwelten.com

21/02/2023

Summary of the review

Test: Outdoor Watches POLAR Grit X Pro and SUUNTO 9 Peak

In a Bergwelten review, expert Gerald Valentin compares the Polar Grit X Pro and Suunto 9 Peak as top-tier GPS multisport watches for rugged outdoor activities, noting that while they differ in design, both provide exceptional performance with barometers and heart rate monitoring. The Polar Grit X Pro is highlighted for its durability, featuring military-grade construction, sapphire glass, and advanced, detailed training metrics. Conversely, the Suunto 9 Peak is praised for its significantly thinner and lighter design, offering superior comfort, a fast-charging battery, and effective navigation tools, though with a smaller functional display area. Ultimately, the choice between the two, which are functional equivalents, comes down to personal preference for a classic, robust design (Polar) or a sleek, minimalist aesthetic (Suunto).

alpin.de

12/11/2021

Summary of the review

Polar Grit X Pro | Outdoor & Fitness Watch Review

The Polar Grit X Pro is a durable multisport watch featuring MIL-STD-810G construction, a scratch-resistant sapphire lens, and comprehensive recovery tools like Training Load Pro and Nightly Recharge. It offers specialized features for outdoor enthusiasts, including FuelWise nutrition reminders and accurate GPS performance, with battery life lasting up to 40 hours in full tracking mode. However, the device is limited by its lack of full, onboard topographical maps, relying on breadcrumb navigation, and a sometimes dull or sluggish MIP display. For a detailed analysis, visit Alpin.de.

trail-session.fr

17/06/2023

Summary of the review

Polar Grit X Pro [Cardio-GPS Watches]: For Adventurers

The Polar Grit X Pro is a durable, military-grade multisport watch featuring a sapphire glass lens, 100m water resistance, and specialized training metrics like Training Load Pro and FuelWise. Key advantages include its robust construction, long battery life (up to 40 hours in full GPS), and efficient Komoot-powered route guidance. Conversely, the device lacks advanced smartwatch features such as music storage, utilizes a less vibrant 1.2-inch MIP display, and offers only breadcrumb navigation rather than full topographical maps. For a detailed review, visit TechRadar.

journaldutrail.com

12/10/2021

Summary of the review

Polar Grit X Pro In-Depth Review: My Honest Opinion!

The Polar Grit X Pro is a durable, high-end, military-grade multisport watch featuring a sapphire glass lens, stainless steel bezel, and advanced performance metrics (running/leg recovery). Key pros include exceptional robustness and a clear, outdoor-visible MIP display, while the lack of a vibrant AMOLED screen and a sluggish menu processor are notable cons. For outdoor navigation, the watch introduces "outdoor dashboards," turn-by-turn guidance via Komoot, and a "Track Back" feature, backed by a precise barometric altimeter. However, a major limitation is the absence of topographical maps, leaving users with only a basic "breadcrumb" line. Live The device excels in sleep tracking (Nightly Recharge) and offers impressive battery life (up to 40 hours in full GPS mode). Despite these strengths, the Grit X Pro lacks internal music storage and contactless payments, and its heart rate sensor can occasionally lag during high-intensity workouts. For a full review, visit Journal du Trail.

lesnumeriques.com

09/08/2022

Summary of the review

Polar Grit X Pro Review: A Rugged Multisport Watch Built for Performance

The Polar Grit X Pro is a rugged, high-end multisport watch designed for durability, featuring sapphire glass and military-grade resistance. While the 1.2-inch MIP display offers excellent outdoor visibility, it lacks the vibrancy of AMOLED and can feel sluggish. Performance is highlighted by advanced training metrics (Training Load Pro) and Komoot-powered turn-by-turn navigation, though it relies on breadcrumb trails rather than full, native mapping. Battery life is solid at roughly 40 hours in full GPS mode, yet the device lacks modern smart features like NFC payments and music storage. Key pros include exceptional build quality and deep data, while cons focus on the limited navigation and dated interface. Live

runmag.fr

01/10/2021

Summary of the review

In-depth Polar Grit X Pro Review

The Polar Grit X Pro is a rugged, premium multisport watch designed for durability with sapphire glass and MIL-STD-810G certification, featuring enhanced outdoor dashboards and robust build quality. Performance is characterized by advanced recovery tracking, such as Nightly Recharge, alongside turn-by-turn navigation via Komoot and a long battery life. While praised for its durability, the review notes the lack of integrated, detailed mapping and a less fluid interface compared to competitors.

montre-cardio-gps.fr

04/12/2021

Summary of the review

Polar Grit X Pro Review: More Robust and Built for the Outdoors

The Polar Grit X Pro is a durable, MIL-STD-810G rated multisport watch featuring a scratch-resistant sapphire lens, offering enhanced navigation tools like "Track Back" and always-on outdoor dashboards. Key strengths include top-tier recovery metrics (Training Load Pro, Orthostatic Test) and excellent sleep tracking, making it a reliable tool for endurance athletes. However, the device features dated hardware with large bezels, lacks modern amenities like offline maps or music storage, and misses out on dual-band GPS found in competitors.

trailrunningreview.com

14/12/2021

Summary of the review

Polar Grit X Pro - TRAILRUNNINGReview.com

The Polar Grit X Pro is identified as a rugged, military-grade GPS watch featuring sapphire glass and a stainless steel bezel designed for high durability in extreme trail conditions. Key pros include advanced navigation features like Komoot turn-by-turn guidance, new "Outdoor Dashboards" for essential data, and highly regarded, detailed sleep tracking via Nightly Recharge. In terms of specialized functionality, the device boasts Hill Splitter for segment tracking and FuelWise for managing, with a 40-hour battery life in full GPS mode. However, significant cons include a display with limited brightness compared to AMOLED alternatives and a sometimes sluggish touchscreen interface. Overall, the watch is recommended for runners prioritizing durability and in-depth training metrics, despite experiencing faster battery drain in, for example, 5–7 days of typical, active use.

correrunamaraton.com

15/11/2021

Summary of the review

Polar Grit X Pro Review: Performance and Expert Opinion

The Polar Grit X Pro is a durable, premium multisport watch that enhances the original model with a scratch-resistant sapphire lens and improved, rugged aesthetics. It excels at delivering actionable training and recovery data, featuring specialized tools like Hill Splitter, FuelWise, and advanced orthostatic tests for endurance athletes. While offering robust build quality, the device relies on older optical sensor hardware and lacks modern dual-band GPS, resulting in "solid" rather than class-leading tracking accuracy. Key advantages include its stylish, rugged design, comprehensive recovery metrics, and the addition of track-back navigation. Conversely, the review notes the absence of music storage, lack of onboard mapping (using Komoot breadcrumb navigation instead), and a somewhat sluggish interface. The Grit X Pro is ultimately recommended for athletes prioritizing superior data analysis and durability over the latest, fastest technology.

carrerasdemontana.com

27/12/2021

Summary of the review

Polar Grit X Pro: In-Depth Trail Running Review

Ivan Vila's Carreras de Montaña review highlights the Polar Grit X Pro as a durable, feature-rich watch for trail running, boasting 40-hour battery life, robust sapphire glass, and turn-by-turn navigation via Komoot. The review praises the real-time altimetry profiles and FuelWise nutrition reminders, with the Titan model offering a lighter 73g weight. However, it notes drawbacks like the lack of integrated topographic maps, inconsistent sleep tracking data, and limited smart features such as no internal music storage.

revistaoxigeno.es

28/05/2024

Summary of the review

Polar Grit X2 Pro Review: Maximum Power for Outdoor Fun (Including Comparison and Retrospective of the Original Grit X Pro)

The Polar Grit X2 Pro is reviewed as a rugged, high-performance smartwatch featuring a stainless steel bezel and a bright 1.39-inch AMOLED display that meets military-grade durability standards. It introduces advanced navigation with offline topographic maps and dual-frequency GPS, alongside specialized metrics like 3D speed for trail running. Key strengths include improved visual clarity, robust GPS accuracy, and comprehensive biosensing tools, although it is criticized for being bulky, lacking advanced smartwatch features, and having a high price point. The watch serves as a significant, durable upgrade for users committed to the Polar ecosystem. For more details, visit Revista Oxígeno.

solonieve.es

06/11/2021

Summary of the review

A Deep Dive into the New Polar Grit X Pro

The Polar Grit X Pro is a durable, premium multisport watch featuring MIL-STD-810G construction, scratch-resistant sapphire glass, and a 100-meter water resistance rating suitable for extreme outdoor environments, though its screen visibility can falter in direct sunlight. Enhanced navigation features include real-time elevation profiles, Komoot turn-by-turn guidance, and "Back to Start" functionality, while lacking full offline, detailed topographic mapping. The device excels in performance tracking with Precision Prime™ sensors and comprehensive sleep/recovery data, delivering strong battery life that can be reduced by extensive, high-performance tracking usage.

sportlife.es

08/12/2021

Summary of the review

Pros and cons of the Polar Grit X Pro - Sportlife

The Polar Grit X Pro is a rugged, mountain-oriented smartwatch featuring a sapphire crystal lens and MIL-STD-810G military-grade durability, designed for extreme outdoor conditions. Key pros include advanced navigation tools like Komoot turn-by-turn guidance, the FuelWise nutrition assistant, and the Hill Splitter feature for tracking ascent and descent. The device also offers a comprehensive health suite, including the Polar Elixir platform for optical heart rate and ECG, alongside in-depth Nightly Recharge recovery insights. While the watch is commended for being lightweight and having responsive physical buttons, it has notable limitations. Critics highlight the sluggish touchscreen, slow Bluetooth synchronization via the Polar Flow app, and the absence of advanced features like contactless payments or onboard music storage. Furthermore, the large 47mm casing may feel bulky to some users, and the device relies on a screen-based light rather than a dedicated flashlight.

sportoutdoor24.it

10/11/2021

Summary of the review

Polar Grit X Pro Review: All the Pros and Cons to Consider

The Polar Grit X Pro is a durable, military-grade multisport watch featuring sapphire glass and a robust bezel, designed for extreme outdoor conditions. Key advantages include extensive battery life (up to 40 hours in full GPS mode), advanced recovery tools like Training Load Pro, and specialized features such as Hill Splitter and Komoot-powered navigation. Key limitations noted in the review include the lack of full topographical mapping (relying instead on breadcrumb navigation) and a sometimes unresponsive touchscreen. Despite its high performance and accuracy, the device faces competition from models offering more smart features, and it lacks both onboard music storage and contactless payments. Designed as a "hardcore" tool, the Grit X Pro excels for athletes prioritizing data precision and durability over smart functionalities, justifying its premium price tag. The device is best suited for those dedicated to utilizing the comprehensive Polar Flow ecosystem for endurance training.

3athlon.nl

20/10/2021

Summary of the review

Polar Grit X Pro Titan Review: Worth the price?

The 3athlon.nl review of the Polar Grit X Pro Titan highlights its premium, lightweight design featuring a durable titanium bezel, sapphire glass, and military-grade construction (MIL-STD-810G), though the touchscreen can sometimes feel sluggish. It excels in outdoor navigation with Komoot integration and top-tier GPS accuracy, but lacks native offline topographic maps, which is a drawback for some users. Key strengths include advanced Training Load Pro and Recovery Pro metrics, with the primary downside being the high price point relative to the original Grit X, suggesting it is best for those specifically requiring maximum durability and data insight.

wielrenner.eu

06/01/2026

Summary of the review

Polar Grit X Pro Review [Surprisingly good results!]

The Polar Grit X is a lightweight (64g), military-grade, rugged multisport watch designed for trail running and endurance, featuring a stainless steel bezel and durable display. Key features include specialized training metrics such as the Hill Splitter for elevation analysis and FuelWise for energy management, aimed at long-duration activities. Key cons include the lack of native, offline mapping, offering only basic breadcrumb navigation, and a sometimes unresponsive touchscreen. Furthermore, the device lacks advanced smart features, such as music storage, and a specialized, quick-view barometer screen for weather updates. Performance-wise, it offers 40 hours of full GPS battery life, extending to 100 hours with power-saving, along with largely accurate heart rate tracking, though it may lag in intense scenarios. While highly capable, it is considered a niche, specialized tool rather than a general-purpose smartwatch. For more details, visit Wielrenner.

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