Fitbit Blaze Review | 126 Data compared

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  • Avg. price in UK: ~£180
  • Avg. price in US: ~$200
  • Screen size: ?
  • Battery life: 5 day/s
  • Display type: LCD

Fitbit Blaze review. Compare 126 technical specifications and user reviews to see how it ranks among smartwatches and if it is worth buying.

5.5

Overall score

What it is: An overall evaluation of the smartwatch's quality, based on technical analyses and user reviews.

When it matters: When you need a quick reference to identify the best Smartwatches on the market.

Score components:

90.0%

5.2

Technical Score

10.0%

8.8

User score

Good
5.2

Technical Score

What it is: An assessment of the smartwatch's technical performance, covering eight key areas: performance & hardware, software, camera, connectivity, display, battery, audio, and design.

When it matters: When you want to compare Smartwatches based on technical performance and available features.

Score components:

24.0%

4.2

Health

21.0%

8.3

Fitness

16.0%

5.3

Battery

14.0%

3.7

Smart features

12.0%

2.5

Connectivity

9.0%

6.7

Display & Design

4.0%

3.9

Hardware

Good
8.8

User score

What it is: A rating that combines user reviews and the total number of reviews received by the smartwatch

When it matters: When you want to know how a smartwatch handles daily tasks and how reliable it remains over time according to user feedback.

Score components:

70.0%

8.3

User reviews

30.0%

10

Popularity

User score:
United Kingdom
amazon
4.3
(13839)
amazon
4.1
(12807)
amazon
3.9
(235)
amazon
3.6
(59)
United States
Amazon_logo.png
4.0
(7491)
Amazon_logo.png
4.0
(2636)
Amazon_logo.png
4.1
(1372)
Amazon_logo.png
4.0
(240)

(Reviews last updated: April 2026)

Excellent
    • fitbit-blaze
    • fitbit-blaze
    fitbit-blaze
    fitbit-blaze

    Best prices in UK

    Best rankings

    ?

    Available: ranking among products currently available (including other versions of this product).
    All: ranking among all products in the database.

    Verdict

    The Fitbit Blaze is a hybrid smart fitness watch featuring a 1.25-inch high-resolution colour LCD touchscreen protected by Corning Gorilla Glass 3 and housed in a modular stainless steel frame. It is equipped with an optical heart rate monitor, 3-axis accelerometer, altimeter, and ambient light sensor to track steps, floors climbed, sleep stages, and multi-sport activities. Key advantages include a solid 5-day battery life, on-screen 'FitStar' guided workouts, and a highly customizable design with interchangeable bands. However, it lacks built-in GPS—requiring a tethered smartphone connection for route mapping—and is only splash-resistant rather than fully waterproof, making it unsuitable for swimming.

    Technical Specifications of smartwatch Fitbit Blaze

    Technical Score

    What it is: An assessment of the smartwatch's technical performance, covering eight key areas: performance & hardware, software, camera, connectivity, display, battery, audio, and design.

    When it matters: When you want to compare Smartwatches based on technical performance and available features.

    Score components:

    24.0%

    4.2

    Health

    21.0%

    8.3

    Fitness

    16.0%

    5.3

    Battery

    14.0%

    3.7

    Smart features

    12.0%

    2.5

    Connectivity

    9.0%

    6.7

    Display & Design

    4.0%

    3.9

    Hardware

    5.2
    Fitbit Blaze has a technical score of 5.16 points, which is lower than 82.2% of smartwatches.
    User score

    What it is: A rating that combines user reviews and the total number of reviews received by the smartwatch

    When it matters: When you want to know how a smartwatch handles daily tasks and how reliable it remains over time according to user feedback.

    Score components:

    70.0%

    8.3

    User reviews

    30.0%

    10

    Popularity

    User score:
    United Kingdom
    amazon
    4.3
    (13839)
    amazon
    4.1
    (12807)
    amazon
    3.9
    (235)
    amazon
    3.6
    (59)
    United States
    Amazon_logo.png
    4.0
    (7491)
    Amazon_logo.png
    4.0
    (2636)
    Amazon_logo.png
    4.1
    (1372)
    Amazon_logo.png
    4.0
    (240)

    (Reviews last updated: April 2026)

    8.8
    Fitbit Blaze has a user score of 8.8 points, which is higher than 70.3% of smartwatches.
    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.
    10
    Fitbit Blaze has a popularity of 10 points, which is higher than 52.6% of products in this category.
    Ratio quality/price

    What it is: An indicator that combines the smartwatch's overall rating with its cost.

    When it matters: When you are looking for a smartwatch with a good balance between quality and price.

    Score components:

    60.0%

    5.5

    Overall score

    40.0%

    9.6

    Price

    6.7
    Fitbit Blaze has a quality-to-price ratio of 6.7 points, which is lower than 78.7% of products in this category.
    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

    Fitbit
    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

    yes
    Fitbit Blaze includes a heart rate monitor. 90.4% of smartwatches include a heart rate monitor.
    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

    no
    Fitbit Blaze does not support blood oxygen monitoring. 64.4% of smartwatches support blood oxygen monitoring.
    Readings are for wellness use, not medical diagnosis.
    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

    no
    Fitbit Blaze does not support ECG. 15.1% of smartwatches support ECG.
    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

    no
    Fitbit Blaze does not support irregular heart rate warnings. 43.7% of smartwatches support irregular heart rate warnings.
    Show more
    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

    yes
    Fitbit Blaze includes an accelerometer. 99.1% of smartwatches include an accelerometer.
    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

    yes
    Fitbit Blaze includes a barometer. 45.6% of smartwatches include a barometer.
    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

    yes
    Fitbit Blaze includes a gyroscope. 64.6% of smartwatches include a gyroscope.
    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

    no
    Fitbit Blaze does not include a cadence sensor. 20.1% of smartwatches include a cadence sensor.
    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

    yes
    Fitbit Blaze supports distance tracking. 95.7% of smartwatches support distance tracking.
    Distance tracking may depend on phone GPS/app on some models.
    Show more
    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

    5 day/s
    Fitbit Blaze offers a battery life of 5 day/s which is shorter than that of 63.5% of smartwatches and equal to that of 6.5% of smartwatches.
    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

    N/A
    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

    167 mAh
    Fitbit Blaze has a battery capacity of 167 mAh which is smaller than the batteries in 93.4% of smartwatches of smartwatches.
    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

    ?
    Show more
    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

    Fitbit OS
    Fitbit Blaze runs Fitbit OS which is more advanced than the operating system in 57.6% of smartwatches and the same as that in 1% of smartwatches.
    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

    ended
    Fitbit Blaze has ended software update support which is less active than that of 42.6% of smartwatches and equal to that of 57.5% of smartwatches.
    Software support appears ended or discontinued.
    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

    no
    Fitbit Blaze does not support third-party apps. 47.6% of smartwatches support third-party apps.
    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

    yes
    Fitbit Blaze supports notifications. 99.9% of smartwatches support notifications.
    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

    no
    Fitbit Blaze does not support voice assistants. 68% of smartwatches support voice assistants.
    Show more
    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

    no
    Fitbit Blaze does not include a cellular module. 17.2% of smartwatches include a cellular module.
    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

    no
    Fitbit Blaze does not support GPS. 56.1% of smartwatches support GPS.
    GPS works only via connected smartphone (no built-in GPS chip).
    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

    no
    Fitbit Blaze does not support Galileo navigation. 38.7% of smartwatches support Galileo navigation.
    Supports other GNSS systems, but Galileo is not listed.
    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

    no
    Fitbit Blaze does not include a compass. 49.3% of smartwatches include a compass.
    Show more
    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

    LCD
    Fitbit Blaze uses a LCD display type which is less advanced than that of 90.3% of smartwatches and the same as that of 7.8% of smartwatches.
    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

    180 x 240
    Fitbit Blaze has a display resolution of 180x240 which is lower than that of 92.6% of smartwatches of smartwatches.
    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

    333 ppi
    Fitbit Blaze has a pixel density of 333 ppi which is higher than that of 57.9% of smartwatches and equal to that of 0.2% of smartwatches.
    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

    ?
    Show more
    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

    0.032 GHz
    Fitbit Blaze uses a CPU configuration of 0.032 GHz which is slower than that in 96.8% of smartwatches and equal to that in 0.8% of smartwatches.
    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

    Silicon Labs EFM32 Giant Gecko
    Fitbit Blaze uses the Silicon Labs EFM32 Giant Gecko processor model.
    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

    0.008 GB
    Fitbit Blaze uses 0.008 GB for internal storage which is smaller than that of 72.9% of smartwatches and equal to that of 0.4% of smartwatches.
    8 MB serial flash storage.
    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

    no
    Fitbit Blaze does not include an external memory slot. 0.3% of smartwatches include an external memory slot.
    Show more

    Fitbit Blaze vs the average smartwatch

    • Supports VO2 max
      Fitbit Blaze 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

      Fitbit Blaze measures VO2 max, the average smartwatch does not. 49.3% of smartwatches measure VO2 max.
    • Has barometer
      Fitbit Blaze 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

      Fitbit Blaze includes a barometer, the average smartwatch does not. 45.6% of smartwatches include a barometer.
    • Stronger display glass
      Fitbit Blaze uses Corning Gorilla Glass 3 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

      Fitbit Blaze uses Corning Gorilla Glass 3 display glass, while the average smartwatch uses mineral glass.Corning Gorilla Glass 3 vs mineral glass
    • Has rugged design
      Fitbit Blaze has a rugged design, the average smartwatch does not. 34.5% of smartwatches have a rugged design.
      What it is: A build style aimed at tougher environments, impacts, and harsher outdoor use.
      When it matters: When you wear the watch in rain, sweat, or water.

      Importance: MEDIUM

      Fitbit Blaze has a rugged design, the average smartwatch does not. 34.5% of smartwatches have a rugged design.
    • Supports calorie tracking
      Fitbit Blaze supports calorie tracking, the average smartwatch does not. 43.8% of smartwatches support calorie tracking.
      Food logging may require a companion or third-party app.
      What it is: Estimated calorie burn based on movement, heart data, and user profile inputs.
      When it matters: When you track workouts and want better training data.

      Importance: MEDIUM

      Fitbit Blaze supports calorie tracking, the average smartwatch does not. 43.8% of smartwatches support calorie tracking.
    • More advanced operating system
      Fitbit Blaze runs a more advanced operating system than the average smartwatch (Fitbit OS vs Proprietary OS).
      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

      Fitbit Blaze runs a more advanced operating system than the average smartwatch (Fitbit OS vs Proprietary OS).Fitbit OS vs Proprietary OS
    • Better battery type
      Fitbit Blaze uses a Li-Po battery, while the average smartwatch uses Li-ion.
      What it is: The battery chemistry or construction used inside the watch.
      When it matters: When battery lifespan or charging habits matter to you.

      Importance: LOW

      Fitbit Blaze uses a Li-Po battery, while the average smartwatch uses Li-ion.Li-Po vs Li-ion
    • Has weight tracking
      Fitbit Blaze supports weight tracking, the average smartwatch does not. 39.2% of smartwatches support weight tracking.
      Weight tracking may rely on manual app entry or smart-scale sync.
      What it is: Logging or syncing of body-weight records over time.
      When it matters: When you want health data from your wrist during the day or night.

      Importance: LOW

      Fitbit Blaze supports weight tracking, the average smartwatch does not. 39.2% of smartwatches support weight tracking.
    • Supports VO2 max
      Fitbit Blaze measures VO2 max, the average smartwatch does not. 49.3% of smartwatches measure VO2 max.
    • Supports calorie tracking
      Fitbit Blaze supports calorie tracking, the average smartwatch does not. 43.8% of smartwatches support calorie tracking.
    • Has weight tracking
      Fitbit Blaze supports weight tracking, the average smartwatch does not. 39.2% of smartwatches support weight tracking.
    • Has barometer
      Fitbit Blaze includes a barometer, the average smartwatch does not. 45.6% of smartwatches include a barometer.
    • Better battery type
      Fitbit Blaze uses a Li-Po battery, while the average smartwatch uses Li-ion.
    • Stronger display glass
      Fitbit Blaze uses Corning Gorilla Glass 3 display glass, while the average smartwatch uses mineral glass.
    • Has rugged design
      Fitbit Blaze has a rugged design, the average smartwatch does not. 34.5% of smartwatches have a rugged design.
    • More advanced operating system
      Fitbit Blaze runs a more advanced operating system than the average smartwatch (Fitbit OS vs Proprietary OS).
    • No blood oxygen
      Fitbit Blaze does not support blood oxygen monitoring, the average smartwatch does. 64.4% of smartwatches support blood oxygen monitoring.
      Readings are for wellness use, not medical diagnosis.
    • No stress monitoring
      Fitbit Blaze does not support stress monitoring, the average smartwatch does. 65.4% of smartwatches support stress monitoring.
      Availability may vary by model or region.
    • No cycle tracking
      Fitbit Blaze does not support menstrual cycle tracking, the average smartwatch does. 64.6% of smartwatches support menstrual cycle tracking.
    • No auto pause
      Fitbit Blaze does not support auto pause, the average smartwatch does. 59.3% of smartwatches support auto pause.
    • No swim mode
      Fitbit Blaze does not include a swim sport mode, the average smartwatch does. 74.9% of smartwatches include a swim sport mode.
    • 62 fewer exercise profiles
      Fitbit Blaze supports fewer exercise modes than the average smartwatch (18 vs 80). The average smartwatch supports 80 exercise modes.
      Reported as at least 18 exercise modes.
    • 133 mAh smaller battery capacity
      Fitbit Blaze has a smaller battery capacity than the average smartwatch (167 mAh vs 300 mAh). The average smartwatch battery is 300 mAh.
    • No low power mode
      Fitbit Blaze does not include a low power mode, the average smartwatch does. 93.6% of smartwatches include a low power mode.
    • 2 day/s shorter battery life
      Fitbit Blaze offers 5 day/s of battery life, while the average smartwatch offers 7 day/s.
    • No GPS
      Fitbit Blaze does not support GPS, the average smartwatch does. 56.1% of smartwatches support GPS.
      GPS works only via connected smartphone (no built-in GPS chip).
    • Older Bluetooth version
      Fitbit Blaze supports an older Bluetooth version than the average smartwatch (4 vs 5.0). The average smartwatch uses 5.0.
    • Basic display type
      Fitbit Blaze uses LCD display technology, while the average smartwatch features AMOLED.
    • No always-on display
      Fitbit Blaze does not have an always-on display, the average smartwatch does. 66.4% of smartwatches have an always-on display.
    • 40 m lower waterproof depth
      Fitbit Blaze has a shallower waterproof rating than the average smartwatch (10 m vs 50 m). The average smartwatch reaches 50 m.
      1 ATM class (ISO 22810 shallow-water rating, not diving certification).
    • Lower resolution
      Fitbit Blaze has a display resolution of 180x240, while the average smartwatch reaches 352x430.
    • 0.6 mm thicker watch body
      Fitbit Blaze is thicker than the average smartwatch (12.2 mm vs 11.60 mm). The average smartwatch thickness is 11.60 mm.
    • No music playback
      Fitbit Blaze does not support music playback, the average smartwatch does. 53.9% of smartwatches support music playback.
    • No call answering
      Fitbit Blaze does not support call answering, the average smartwatch does. 57% of smartwatches support call answering.
      Call can be answered/managed, but conversation audio is on phone/headset.
    • No voice commands
      Fitbit Blaze does not support voice commands, the average smartwatch does. 64.5% of smartwatches support voice commands.
    • No voice assistant
      Fitbit Blaze does not support voice assistants, the average smartwatch does. 68% of smartwatches support voice assistants.
    • No smart alarm
      Fitbit Blaze does not support a smart alarm, the average smartwatch does. 52.7% of smartwatches support this feature.
    • No camera remote control
      Fitbit Blaze 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.
      Not built-in; available only via third-party apps.
    • No passcode
      Fitbit Blaze does not include passcode protection, the average smartwatch does. 68.5% of smartwatches include passcode protection.
    • No phone finder
      Fitbit Blaze does not include phone finder, the average smartwatch does. 94.6% of smartwatches include phone finder.
    • No speaker
      Fitbit Blaze does not include a built-in speaker, the average smartwatch does. 54.7% of smartwatches include a built-in speaker.
    • Slower CPU speed
      Fitbit Blaze uses a CPU configuration of 0.032 GHz, while the average smartwatch uses 1 GHz.
    • Less advanced processor model
      Fitbit Blaze uses the Silicon Labs EFM32 Giant Gecko processor model, while the average smartwatch uses Snapdragon 400.
    • 3.99 GB less storage
      Fitbit Blaze offers less internal storage than the average smartwatch (0 GB vs 4 GB). The average smartwatch provides 4 GB of storage.
      8 MB serial flash storage.
    • 5 year/s older release date
      Fitbit Blaze is an older model than the average smartwatch (2016 vs 2021). The average smartwatch was released in 2021.
      March 2016
    • Basic display type
      Fitbit Blaze uses 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

      Fitbit Blaze uses LCD display technology, while the average smartwatch features AMOLED.LCD vs AMOLED
    • No GPS
      Fitbit Blaze does not support GPS, the average smartwatch does. 56.1% of smartwatches support GPS.
      GPS works only via connected smartphone (no built-in GPS chip).
      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

      Fitbit Blaze does not support GPS, the average smartwatch does. 56.1% of smartwatches support GPS.
    • No blood oxygen
      Fitbit Blaze does not support blood oxygen monitoring, the average smartwatch does. 64.4% of smartwatches support blood oxygen monitoring.
      Readings are for wellness use, not medical diagnosis.
      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

      Fitbit Blaze does not support blood oxygen monitoring, the average smartwatch does. 64.4% of smartwatches support blood oxygen monitoring.
    • No always-on display
      Fitbit Blaze does not have an always-on display, the average smartwatch does. 66.4% of smartwatches have an always-on display.
      What it is: A display mode that keeps key information visible even when the watch is idle.
      When it matters: When you want the screen to be easy to read at a glance.

      Importance: HIGH

      Fitbit Blaze does not have an always-on display, the average smartwatch does. 66.4% of smartwatches have an always-on display.
    • No speaker
      Fitbit Blaze 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

      Fitbit Blaze does not include a built-in speaker, the average smartwatch does. 54.7% of smartwatches include a built-in speaker.
    • No stress monitoring
      Fitbit Blaze does not support stress monitoring, the average smartwatch does. 65.4% of smartwatches support stress monitoring.
      Availability may vary by model or region.
      What it is: Stress estimates derived from heart rate, HRV, or similar body signals.
      When it matters: When you want health data from your wrist during the day or night.

      Importance: HIGH

      Fitbit Blaze does not support stress monitoring, the average smartwatch does. 65.4% of smartwatches support stress monitoring.
    • No music playback
      Fitbit Blaze does not support music playback, the average smartwatch does. 53.9% of smartwatches support music playback.
      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

      Fitbit Blaze does not support music playback, the average smartwatch does. 53.9% of smartwatches support music playback.
    • 40 m lower waterproof depth
      Fitbit Blaze has a shallower waterproof rating than the average smartwatch (10 m vs 50 m). The average smartwatch reaches 50 m.
      1 ATM class (ISO 22810 shallow-water rating, not diving certification).
      What it is: The stated depth or water-resistance class the watch is rated to withstand.
      When it matters: When you wear the watch in rain, sweat, or water.

      Importance: HIGH

      Good value: >=50 m

      Fitbit Blaze has a shallower waterproof rating than the average smartwatch (10 m vs 50 m). The average smartwatch reaches 50 m.10 m vs 50 m

    Graphic comparison of Fitbit Blaze and other Smartwatches

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    Third-party reviews

    What customers like about Fitbit Blaze?

    • Long battery life, typically lasting up to 5 days on a single charge
    • Bright and vibrant high-resolution color touchscreen
    • Highly customizable design with easily interchangeable straps and frames
    • Accurate heart rate, sleep, and step monitoring for general fitness tracking
    • Integrated FitStar on-screen guided workouts
    • Seamless integration with the user-friendly Fitbit app ecosystem

    What customers dislike about Fitbit Blaze?

    • Lacks built-in GPS, requiring a tethered smartphone for route mapping
    • Not waterproof; only splash and sweat resistant, making it unsuitable for swimming or showering
    • Awkward and clunky charging mechanism that requires removing the module from the frame
    • Limited smartwatch features with no third-party app support or actionable notifications
    • Bulky, angular design that may feel uncomfortable on smaller wrists or during sleep
    • Proprietary charging cable that is not compatible with other Fitbit models

    Expert reviews

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    techgearlab.com
    11/01/2017
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    11/07/2017
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    digitaltrends.com
    23/08/2019
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    tomsguide.com
    17/02/2017
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    wareable.com
    04/04/2017
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    expertreviews.co.uk
    29/07/2019
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    techradar.com
    21/11/2018
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    techadvisor.com
    16/07/2018
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    uk.pcmag.com
    06/04/2017
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    theverge.com
    15/03/2016
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    dcrainmaker.com
    03/03/2016
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    cnet.com
    28/02/2016
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    t3.com
    25/02/2016
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    trustedreviews.com
    07/01/2016
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    chip.de
    15/04/2016
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    heise.de
    19/04/2016
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    connect.de
    09/06/2016
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    connect.de
    09/06/2016
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    computerbild.de
    18/03/2016
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    runner-life.com
    12/12/2017
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    cnetfrance.fr
    29/03/2016
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    laredoute.fr
    14/12/2015
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    darty.com
    19/05/2016
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    01net.com
    21/04/2016
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    lesnumeriques.com
    30/04/2016
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    labolsadelcorredor.com
    28/04/2016
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    muycomputer.com
    16/03/2016
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    palabraderunner.com
    18/01/2016
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    xataka.com
    06/07/2023
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    computerhoy.20minutos.es
    12/04/2016
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    andreagaleazzi.com
    12/03/2016
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    runandthecity.it
    23/05/2016
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    wired.it
    08/08/2016
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    andreagaleazzi.com
    24/03/2016
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    tweakers.net
    Unknown
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    tweakers.net
    07/10/2016
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    tweakers.net
    28/06/2016
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    tweakers.net
    31/05/2016
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    portablegear.nl
    29/07/2026
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    Video reviews

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