OVERALL
SPECS
VS AVERAGE
REVIEWS
ALTERNATIVES

Lenovo HX03 Cardio Review | 171 Data compared

double-arrow
  • Avg. price: ~£20
  • Form factor: wristband
  • Battery life: 10 days
  • Screen size: 0.87 inch

Lenovo HX03 Cardio review. Compare 171 technical specifications and user reviews to see how it ranks among fitness trackers and if it is worth buying.

6.8

Overall score

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

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

Score components:

80.0%

7.0

Technical Score

20.0%

6.0

User score

Good
7.0

Technical Score

What it is: An assessment of the fitness tracker's technical performance, covering eight key areas: health tracking, sports features, connectivity, display, battery, smart features, design, and app support.

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

Score components:

20.0%

7.7

Sports & Navigation

20.0%

5.7

Battery

18.0%

7.8

Health

18.0%

5.5

Display

8.0%

6.9

Smart Features

8.0%

8.4

App & Wellness

4.0%

8.2

Connectivity

4.0%

8.3

Design & Durability

Very good
6.0

User score

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

When it matters: When you want to know how a fitness tracker performs in daily use and how reliable it remains over time according to user feedback.

Score components:

70.0%

5.8

User reviews

30.0%

6.4

Popularity

User score:
United Kingdom
amazon
2.9
(89)

(Reviews last updated: Jun 2026)

Good
  • 5.0
    Swimming

    Score components:

    28.0%

    9.0

    ATM rating

    24.0%

    4.0

    Open-water swim mode

    18.0%

    1.3

    Waterproof depth rating

    15.0%

    4.0

    GPS

    15.0%

    4.5

    Battery life

  • 6.9
    Kids

    Score components:

    30.0%

    4.5

    Battery life

    25.0%

    8.8

    Weight

    20.0%

    9.0

    ATM rating

    15.0%

    4.0

    Screen size

    10.0%

    10

    Price

  • lenovo-hx03-cardio
  • lenovo-hx03-cardio
  • lenovo-hx03-cardio
  • lenovo-hx03-cardio
  • lenovo-hx03-cardio
lenovo-hx03-cardio
lenovo-hx03-cardio
lenovo-hx03-cardio
lenovo-hx03-cardio
lenovo-hx03-cardio

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 Lenovo HX03 Cardio is a budget-friendly fitness tracker featuring a 0.96-inch OLED touch display with a 128 x 32 pixel resolution and an IP68 water-resistant rating. Key specifications include an 85mAh battery providing up to 10 days of life, Bluetooth 4.2 connectivity, and essential health sensors such as an optical heart rate monitor, pedometer, and sleep tracker. Its standout features include a convenient USB direct-charging design that eliminates the need for extra cables, sedentary reminders, and smartphone notifications for calls and social apps. Main pros are its lightweight 20g build, interchangeable silicone straps, and accurate step counting for its price point. However, notable cons include a display that can be difficult to read under direct sunlight, a single touch-point navigation rather than a full touchscreen, and reported inaccuracies in step tracking during vehicle travel.

Technical Specifications of Lenovo HX03 Cardio

Technical Score

What it is: An assessment of the fitness tracker's technical performance, covering eight key areas: health tracking, sports features, connectivity, display, battery, smart features, design, and app support.

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

Score components:

20.0%

7.7

Sports & Navigation

20.0%

5.7

Battery

18.0%

7.8

Health

18.0%

5.5

Display

8.0%

6.9

Smart Features

8.0%

8.4

App & Wellness

4.0%

8.2

Connectivity

4.0%

8.3

Design & Durability

7.0
Lenovo HX03 Cardio has a technical score of 6.97 points, which is lower than 52.6% of fitness trackers.
User score

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

When it matters: When you want to know how a fitness tracker performs in daily use and how reliable it remains over time according to user feedback.

Score components:

70.0%

5.8

User reviews

30.0%

6.4

Popularity

User score:
United Kingdom
amazon
2.9
(89)

(Reviews last updated: Jun 2026)

6.0
Lenovo HX03 Cardio has a user score of 5.99 points, which is lower than 94.4% of fitness trackers.
Popularity
What it is: An indicator based on the number of reviews received by the fitness tracker.
When it matters: When you prefer to buy a product chosen and reviewed by many other consumers.
6.4
Lenovo HX03 Cardio has a popularity of 6.4 points, which is higher than 52.6% of products in this category.
Ratio quality/price

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

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

Score components:

60.0%

6.8

Overall score

40.0%

10

Price

7.7
Lenovo HX03 Cardio has a quality-to-price ratio of 7.7 points, which is lower than 60.1% of products in this category.
Heart rate monitor
What it is: Sensor that measures heart rate in real time.
When it matters: When you care about live heart-rate feedback during training or resting trends outside of workouts.

Importance: HIGH

yes
Lenovo HX03 Cardio supports heart rate monitoring. 40.2% of fitness trackers support heart rate monitoring.
Resting heart rate
What it is: Measures heart rate while resting.
When it matters: When deeper insight into sleep quality, recovery, or overall readiness matters more than raw numbers alone.

Importance: MEDIUM

?
Fast/slow heart rate alerts
What it is: Alerts for heart rates that are too fast or too slow.
When it matters: When you want the tracker to warn you about unusual changes instead of only logging them.

Importance: LOW

yes
Lenovo HX03 Cardio supports high and low heart rate alerts. 66.8% of fitness trackers support high and low heart rate alerts.
High heart rate alert only.
Irregular heart rate alerts
What it is: Warns of irregular or abnormal heart rhythms.
When it matters: When you want the tracker to warn you about unusual changes instead of only logging them.

Importance: LOW

?
Blood oxygen sensor
What it is: Sensor that measures blood oxygen saturation.
When it matters: When blood oxygen readings are part of the health picture you want from the device instead of relying on heart rate and step count alone.

Importance: MEDIUM

no
Lenovo HX03 Cardio does not have a blood oxygen sensor. 26.1% of fitness trackers have a blood oxygen sensor.
Show more
GPS
What it is: Satellite navigation capability for positioning and tracking.
When it matters: When you train outdoors and want pace, distance, and route tracking without depending completely on your phone.

Importance: LOW

no
Lenovo HX03 Cardio does not have GPS. 11% of fitness trackers have GPS.
Satellite systems supported
What it is: States which satellite navigation systems the device can use for positioning.
When it matters: When you train outdoors and want stronger positioning, route guidance, and navigation independence from your phone.

Importance: LOW

no
Lenovo HX03 Cardio supports no satellite systems which is less versatile than that of 12.2% of fitness trackers and the same as that of 87.8% of fitness trackers.
no satellite positioning support.
GNSS bands supported
What it is: Number and type of GNSS frequency bands supported.
When it matters: When you train outdoors and want stronger positioning, route guidance, and navigation independence from your phone.

Importance: LOW

no
Lenovo HX03 Cardio does not support advanced GNSS bands. 8.9% of fitness trackers support advanced GNSS bands.
Galileo support
What it is: Supports Galileo satellite system.
When it matters: When you train outdoors and want stronger positioning, route guidance, and navigation independence from your phone.

Importance: LOW

no
Lenovo HX03 Cardio does not support Galileo. 4.9% of fitness trackers support Galileo.
Acquires GPS faster
What it is: Shows whether the tracker includes features that help it lock onto satellite positioning more quickly at the start of an outdoor activity.
When it matters: When you train outdoors and want stronger positioning, route guidance, and navigation independence from your phone.

Importance: LOW

no
Lenovo HX03 Cardio does not support faster GPS acquisition. 7.2% of fitness trackers support faster GPS acquisition.
Show more
Notifications
What it is: Delivers smartphone notifications on the watch.
When it matters: When getting calls, messages, and app alerts on your wrist saves you from checking your phone constantly.

Importance: MEDIUM

yes
Lenovo HX03 Cardio supports notifications. 27.5% of fitness trackers support notifications.
Vibrating alerts
What it is: Provides vibration-based notifications and alerts.
When it matters: When staying reachable from your wrist helps you avoid checking your phone constantly.

Importance: LOW

yes
Lenovo HX03 Cardio supports vibration alerts. 16.3% of fitness trackers support vibration alerts.
Call control
What it is: Allows control of phone calls from the device.
When it matters: When staying reachable from your wrist helps you avoid checking your phone constantly.

Importance: LOW

no
Lenovo HX03 Cardio does not support call controls. 41.1% of fitness trackers support call controls.
Call answering
What it is: Allows answering calls directly from the device.
When it matters: When staying reachable from your wrist helps you avoid checking your phone constantly.

Importance: LOW

no
Lenovo HX03 Cardio does not support call answering. 1% of fitness trackers support call answering.
Calendar sync
What it is: Syncs calendar events with the connected device.
When it matters: When staying reachable from your wrist helps you avoid checking your phone constantly.

Importance: LOW

no
Lenovo HX03 Cardio does not support calendar sync. 19.9% of fitness trackers support calendar sync.
Show more
Activity reports
What it is: Generates summaries and insights from activity data.
When it matters: When you want the app to motivate you with goals, reports, coaching, or progress feedback over time.

Importance: LOW

yes
Lenovo HX03 Cardio supports activity reports. 5.7% of fitness trackers support activity reports.
Goal setting
What it is: Allows setting personal fitness or activity goals.
When it matters: When you want the app to motivate you with goals, reports, coaching, or progress feedback over time.

Importance: LOW

yes
Lenovo HX03 Cardio supports goal setting. 2.4% of fitness trackers support goal setting.
Achievements
What it is: Rewards progress and completed milestones.
When it matters: When you want the app to motivate you with goals, reports, coaching, or progress feedback over time.

Importance: LOW

yes
Lenovo HX03 Cardio supports achievements. 24.3% of fitness trackers support achievements.
Inactivity alerts
What it is: Alerts when the user has been inactive for too long.
When it matters: When account rules, app costs, exports, or software flexibility affect whether the ecosystem suits you long term.

Importance: LOW

yes
Lenovo HX03 Cardio supports inactivity alerts. 23.7% of fitness trackers support inactivity alerts.
Move reminders supported.
Coaching
What it is: Provides guided training and workout advice.
When it matters: When you want the app to motivate you with goals, reports, coaching, or progress feedback over time.

Importance: LOW

no
Lenovo HX03 Cardio does not support coaching. 33% of fitness trackers support coaching.
Show more
Bluetooth version
What it is: Version of Bluetooth supported by the device.
When it matters: When wireless stability, pairing quality, and long-term phone compatibility matter more than Bluetooth being a simple checkbox.

Importance: LOW

Good value: >=5.0

4.2
Lenovo HX03 Cardio supports Bluetooth 4.2 which is newer than in 60.1% of fitness trackers and equal to that in 14.1% of fitness trackers.
Maximum Bluetooth range
What it is: States the maximum Bluetooth connection range supported under normal conditions.
When it matters: When compatibility with your phone, computer, accessories, or wireless setup affects how well the tracker fits into your ecosystem.

Importance: LOW

Good value: >=10 m

?
NFC
What it is: Supports near-field communication for contactless features.
When it matters: When compatibility with your phone, computer, accessories, or wireless setup affects how well the tracker fits into your ecosystem.

Importance: LOW

no
Lenovo HX03 Cardio does not have NFC. 10.1% of fitness trackers have NFC.
Wi-Fi connectivity
What it is: Connects to wireless internet networks.
When it matters: When the tracker should sync, update, or download data directly without always routing everything through the phone.

Importance: LOW

no
Lenovo HX03 Cardio does not support Wi-Fi. 1.8% of fitness trackers support Wi-Fi.
Wi-Fi version
What it is: Version of Wi-Fi standard supported.
When it matters: When compatibility with your phone, computer, accessories, or wireless setup affects how well the tracker fits into your ecosystem.

Importance: LOW

no
Lenovo HX03 Cardio does not support modern Wi-Fi. 1% of fitness trackers support modern Wi-Fi.
no Wi-Fi support.
Show more
Battery life
What it is: Total time the battery lasts on a full charge.
When it matters: When the tracker needs to last through travel, sleep tracking, long workouts, or several days between charges.

Importance: HIGH

Good value: >5 days

10 days
Lenovo HX03 Cardio offers a battery life of 10 days which is longer than that of 50% of fitness trackers and equal to that of 4.5% of fitness trackers.
Battery life with GPS on
What it is: Battery duration when GPS tracking is active.
When it matters: When you want fewer charging breaks during travel, longer workouts, sleep tracking, or continuous use.

Importance: LOW

Good value: >=8 hours

N/A
Battery life in training mode
What it is: Battery duration during active training sessions.
When it matters: When you want fewer charging breaks during travel, longer workouts, sleep tracking, or continuous use.

Importance: LOW

?
Battery life in power-saving mode
What it is: Battery duration when using power-saving mode.
When it matters: When you want fewer charging breaks during travel, longer workouts, sleep tracking, or continuous use.

Importance: LOW

?
Battery capacity
What it is: Energy storage capacity of the battery.
When it matters: When you want rough battery context behind the runtime claim instead of trusting the advertised hours alone.

Importance: MEDIUM

Good value: >=100 mAh

85 mAh
Lenovo HX03 Cardio has a battery capacity of 85 mAh which is lower than that of 69% of fitness trackers and equal to that of 0.7% of fitness trackers.
Show more
Display
What it is: Main interface showing information and metrics.
When it matters: When easier reading at a glance and better day-to-day screen comfort matter to you.

Importance: LOW

yes
Lenovo HX03 Cardio has a display. 24.1% of fitness trackers have a display.
Screen size
What it is: Physical size of the device’s display measured diagonally.
When it matters: When easier reading at a glance and better day-to-day screen comfort matter to you.

Importance: MEDIUM

0.87 inch
Lenovo HX03 Cardio has a screen size of 0.87 inch which is smaller than that of 75.5% of fitness trackers and equal to that of 2.1% of fitness trackers.
Display type
What it is: Technology used for the screen, such as AMOLED or LCD.
When it matters: When display technology affects contrast, color quality, power efficiency, or how premium the screen feels.

Importance: MEDIUM

OLED
Lenovo HX03 Cardio uses OLED display technology which is more advanced than that of 53% of fitness trackers and the same as that of 21.8% of fitness trackers.
Screen resolution
What it is: Total number of pixels displayed on the screen.
When it matters: When easier reading at a glance and better day-to-day screen comfort matter to you.

Importance: MEDIUM

128 x 32
Lenovo HX03 Cardio has a screen resolution of 128x32 which is lower than that of 51.7% of fitness trackers and equal to that of 9.1% of fitness trackers.
Pixel density
What it is: Number of pixels per inch determining screen sharpness.
When it matters: When easier reading at a glance and better day-to-day screen comfort matter to you.

Importance: LOW

Good value: >=280 ppi

137 ppi
Lenovo HX03 Cardio has a pixel density of 137 ppi which is lower than that of 95.1% of fitness trackers.
Show more
Form factor
What it is: Overall physical design and shape.
When it matters: When materials, shape, and build details affect comfort, durability, or how discreet the device feels.

Importance: LOW

wristband
Hybrid design
What it is: Combines analog and digital display elements.
When it matters: When materials, shape, and build details affect comfort, durability, or how discreet the device feels.

Importance: LOW

no
Lenovo HX03 Cardio does not support Hybrid design. 2.4% of fitness trackers support Hybrid design.
Designed for kids
What it is: Indicates whether the fitness tracker is explicitly designed for children, with child-focused sizing, branding, safety limits, or kid-oriented activity features.
When it matters: This matters when you want a tracker that is genuinely child-focused rather than just a smaller adult model.

Importance: LOW

no
Lenovo HX03 Cardio is not designed for kids. 2.4% of fitness trackers are designed for kids.
No child-specific positioning found.
Replaceable watch band
What it is: Ability to replace the wristband with other styles.
When it matters: When strap comfort, fit, or the ability to swap bands matters for sport, style, or replacement.

Importance: LOW

yes
Lenovo HX03 Cardio has a replaceable watch band. 24.4% of fitness trackers have a replaceable watch band.
Band width
What it is: Width of the strap where it connects to the watch.
When it matters: When strap comfort, fit, or the ability to swap bands matters for sport, style, or replacement.

Importance: LOW

18 mm
Show more

Lenovo HX03 Cardio vs the average fitness tracker

  • 0.5 hours shorter charging time
    Lenovo HX03 Cardio has a lower charging time than the average fitness tracker (1 hours vs 1.5 hours). The average fitness tracker needs 1.5 hours to charge.
    What it is: Time required for a full charge.
    When it matters: When short charging windows matter and you do not want the tracker off your wrist for too long.

    Importance: MEDIUM

    Lenovo HX03 Cardio has a lower charging time than the average fitness tracker (1 hours vs 1.5 hours). The average fitness tracker needs 1.5 hours to charge.1 hours vs 1.5 hours
  • Heart rate alerts
    Lenovo HX03 Cardio supports high and low heart rate alerts, while the average fitness tracker does not. 33.5% of fitness trackers support high and low heart rate alerts.
    High heart rate alert only.
    What it is: Alerts for heart rates that are too fast or too slow.
    When it matters: When you want the tracker to warn you about unusual changes instead of only logging them.

    Importance: LOW

    Lenovo HX03 Cardio supports high and low heart rate alerts, while the average fitness tracker does not. 33.5% of fitness trackers support high and low heart rate alerts.
  • Phone finder support
    Lenovo HX03 Cardio supports phone finding, while the average fitness tracker does not. 49.5% of fitness trackers support phone finding.
    What it is: Helps locate a connected smartphone.
    When it matters: When staying reachable from your wrist helps you avoid checking your phone constantly.

    Importance: LOW

    Lenovo HX03 Cardio supports phone finding, while the average fitness tracker does not. 49.5% of fitness trackers support phone finding.
  • Built-in gyroscope
    Lenovo HX03 Cardio has a gyroscope, while the average fitness tracker does not. 26.4% of fitness trackers have a gyroscope.
    What it is: Sensor that detects orientation and rotation.
    When it matters: When precise movement sensing helps with workout detection, navigation, or activity accuracy.

    Importance: LOW

    Lenovo HX03 Cardio has a gyroscope, while the average fitness tracker does not. 26.4% of fitness trackers have a gyroscope.
  • 3 mm thinner design
    Lenovo HX03 Cardio is thinner than the average fitness tracker (8 mm vs 11 mm). The average fitness tracker has a thickness of 11 mm.
    What it is: Total depth of the watch case.
    When it matters: When overall size, thickness, or weight affects comfort during all-day wear, sleep, or exercise.

    Importance: LOW

    Good value: <10 mm

    Lenovo HX03 Cardio is thinner than the average fitness tracker (8 mm vs 11 mm). The average fitness tracker has a thickness of 11 mm.8 mm vs 11 mm
  • 426.67x higher CPU speed
    Lenovo HX03 Cardio has a higher CPU speed than the average fitness tracker (64 GHz vs 0.15 GHz). The average fitness tracker has 0.15 GHz of CPU speed.
    What it is: Processing speed of the device’s CPU.
    When it matters: When app smoothness, onboard storage, or device-side performance affects your daily experience.

    Importance: LOW

    Lenovo HX03 Cardio has a higher CPU speed than the average fitness tracker (64 GHz vs 0.15 GHz). The average fitness tracker has 0.15 GHz of CPU speed.64 GHz vs 0.15 GHz
  • Modern Bluetooth version
    Lenovo HX03 Cardio supports a newer Bluetooth version than the average fitness tracker (4.2 vs 4.0). The average fitness tracker supports Bluetooth 4.0.
    What it is: Version of Bluetooth supported by the device.
    When it matters: When wireless stability, pairing quality, and long-term phone compatibility matter more than Bluetooth being a simple checkbox.

    Importance: LOW

    Good value: >=5.0

    Lenovo HX03 Cardio supports a newer Bluetooth version than the average fitness tracker (4.2 vs 4.0). The average fitness tracker supports Bluetooth 4.0.4.2 vs 4.0
  • 32.8 mm lower height
    Lenovo HX03 Cardio is shorter than the average fitness tracker (8 mm vs 40.8 mm). The average fitness tracker has a height of 40.8 mm.
    What it is: Vertical measurement of the device body.
    When it matters: When overall size, thickness, or weight affects comfort during all-day wear, sleep, or exercise.

    Importance: LOW

    Lenovo HX03 Cardio is shorter than the average fitness tracker (8 mm vs 40.8 mm). The average fitness tracker has a height of 40.8 mm.8 mm vs 40.8 mm
  • Heart rate alerts
    Lenovo HX03 Cardio supports high and low heart rate alerts, while the average fitness tracker does not. 33.5% of fitness trackers support high and low heart rate alerts.
  • Sweat tracking
    Lenovo HX03 Cardio supports sweat tracking, while the average fitness tracker does not. 7.7% of fitness trackers support sweat tracking.
  • Built-in gyroscope
    Lenovo HX03 Cardio has a gyroscope, while the average fitness tracker does not. 26.4% of fitness trackers have a gyroscope.
  • 0.5 hours shorter charging time
    Lenovo HX03 Cardio has a lower charging time than the average fitness tracker (1 hours vs 1.5 hours). The average fitness tracker needs 1.5 hours to charge.
  • Modern Bluetooth version
    Lenovo HX03 Cardio supports a newer Bluetooth version than the average fitness tracker (4.2 vs 4.0). The average fitness tracker supports Bluetooth 4.0.
  • Phone finder support
    Lenovo HX03 Cardio supports phone finding, while the average fitness tracker does not. 49.5% of fitness trackers support phone finding.
  • 426.67x higher CPU speed
    Lenovo HX03 Cardio has a higher CPU speed than the average fitness tracker (64 GHz vs 0.15 GHz). The average fitness tracker has 0.15 GHz of CPU speed.
  • Camera remote control
    Lenovo HX03 Cardio supports camera remote control, while the average fitness tracker does not. 38.6% of fitness trackers support camera remote control.
  • 3 mm thinner design
    Lenovo HX03 Cardio is thinner than the average fitness tracker (8 mm vs 11 mm). The average fitness tracker has a thickness of 11 mm.
  • 32.8 mm lower height
    Lenovo HX03 Cardio is shorter than the average fitness tracker (8 mm vs 40.8 mm). The average fitness tracker has a height of 40.8 mm.
  • 20% lighter
    Lenovo HX03 Cardio is lighter than the average fitness tracker (20 g vs 25 g). The average fitness tracker weighs 25 g.
  • Water intake tracking
    Lenovo HX03 Cardio supports water intake tracking, while the average fitness tracker does not. 47% of fitness trackers support water intake tracking.
  • Available on PC
    Lenovo HX03 Cardio is available on PC, while the average fitness tracker is not. 16.9% of fitness trackers are available on PC.

Total
Overall
Health
Sports & Navigation
Battery
Connectivity
Smart Features
Design & Durability
App & Wellness
  • No pace measurement
    Lenovo HX03 Cardio does not support pace measurement, while the average fitness tracker does. 61.3% of fitness trackers support pace measurement.
  • 22.7% smaller battery capacity
    Lenovo HX03 Cardio has a lower battery capacity than the average fitness tracker (85 mAh vs 110 mAh). The average fitness tracker has 110 mAh of battery capacity.
  • Lower screen resolution
    Lenovo HX03 Cardio has a lower screen resolution than the average fitness tracker (128x32 vs 194x368). The average fitness tracker has a screen resolution of 194x368.
  • 44.5% lower pixel density
    Lenovo HX03 Cardio has a lower pixel density than the average fitness tracker (137 ppi vs 247 ppi). The average fitness tracker has a pixel density of 247 ppi.
  • 0.17 inch smaller screen size
    Lenovo HX03 Cardio has a lower screen size than the average fitness tracker (0.9 inch vs 1.04 inch). The average fitness tracker has a screen size of 1.04 inch.
  • 98.4% smaller internal storage
    Lenovo HX03 Cardio has a lower internal storage than the average fitness tracker (0 GB vs 0.032 GB). The average fitness tracker has 0.032 GB of internal storage.
  • No stopwatch
    Lenovo HX03 Cardio does not have a stopwatch, while the average fitness tracker does. 58.4% of fitness trackers have a stopwatch.
  • 48.5 m lower waterproof depth rating
    Lenovo HX03 Cardio has a lower waterproof depth rating than the average fitness tracker (1.5 m vs 50 m). The average fitness tracker has a waterproof depth rating of 50 m.
  • No weight tracking
    Lenovo HX03 Cardio does not support weight tracking, while the average fitness tracker does. 81.3% of fitness trackers support weight tracking.
  • Lower screen resolution
    Lenovo HX03 Cardio has a lower screen resolution than the average fitness tracker (128x32 vs 194x368). The average fitness tracker has a screen resolution of 194x368.
    What it is: Total number of pixels displayed on the screen.
    When it matters: When easier reading at a glance and better day-to-day screen comfort matter to you.

    Importance: MEDIUM

    Lenovo HX03 Cardio has a lower screen resolution than the average fitness tracker (128x32 vs 194x368). The average fitness tracker has a screen resolution of 194x368.128x32 vs 194x368
  • No pace measurement
    Lenovo HX03 Cardio does not support pace measurement, while the average fitness tracker does. 61.3% of fitness trackers support pace measurement.
    What it is: Measures running or walking speed.
    When it matters: When you want the tracker to capture more workouts and training details with less manual effort.

    Importance: MEDIUM

    Lenovo HX03 Cardio does not support pace measurement, while the average fitness tracker does. 61.3% of fitness trackers support pace measurement.
  • 44.5% lower pixel density
    Lenovo HX03 Cardio has a lower pixel density than the average fitness tracker (137 ppi vs 247 ppi). The average fitness tracker has a pixel density of 247 ppi.
    What it is: Number of pixels per inch determining screen sharpness.
    When it matters: When easier reading at a glance and better day-to-day screen comfort matter to you.

    Importance: LOW

    Good value: >=280 ppi

    Lenovo HX03 Cardio has a lower pixel density than the average fitness tracker (137 ppi vs 247 ppi). The average fitness tracker has a pixel density of 247 ppi.137 ppi vs 247 ppi
  • 48.5 m lower waterproof depth rating
    Lenovo HX03 Cardio has a lower waterproof depth rating than the average fitness tracker (1.5 m vs 50 m). The average fitness tracker has a waterproof depth rating of 50 m.
    What it is: Maximum depth the device can withstand underwater.
    When it matters: When you plan to swim, shower, dive, or use the tracker regularly around water.

    Importance: LOW

    Good value: >=50 m

    Lenovo HX03 Cardio has a lower waterproof depth rating than the average fitness tracker (1.5 m vs 50 m). The average fitness tracker has a waterproof depth rating of 50 m.1.5 m vs 50 m
  • 98.4% smaller internal storage
    Lenovo HX03 Cardio has a lower internal storage than the average fitness tracker (0 GB vs 0.032 GB). The average fitness tracker has 0.032 GB of internal storage.
    What it is: Amount of internal data storage available.
    When it matters: When app smoothness, onboard storage, or device-side performance affects your daily experience.

    Importance: LOW

    Lenovo HX03 Cardio has a lower internal storage than the average fitness tracker (0 GB vs 0.032 GB). The average fitness tracker has 0.032 GB of internal storage.0.000512 GB vs 0.032 GB
  • No weight tracking
    Lenovo HX03 Cardio does not support weight tracking, while the average fitness tracker does. 81.3% of fitness trackers support weight tracking.
    What it is: Records body weight measurements.
    When it matters: When tracking daily habits and body trends beyond workouts matters to your health routine.

    Importance: LOW

    Lenovo HX03 Cardio does not support weight tracking, while the average fitness tracker does. 81.3% of fitness trackers support weight tracking.
  • 0.17 inch smaller screen size
    Lenovo HX03 Cardio has a lower screen size than the average fitness tracker (0.9 inch vs 1.04 inch). The average fitness tracker has a screen size of 1.04 inch.
    What it is: Physical size of the device’s display measured diagonally.
    When it matters: When easier reading at a glance and better day-to-day screen comfort matter to you.

    Importance: MEDIUM

    Lenovo HX03 Cardio has a lower screen size than the average fitness tracker (0.9 inch vs 1.04 inch). The average fitness tracker has a screen size of 1.04 inch.0.87 inch vs 1.04 inch
  • 22.7% smaller battery capacity
    Lenovo HX03 Cardio has a lower battery capacity than the average fitness tracker (85 mAh vs 110 mAh). The average fitness tracker has 110 mAh of battery capacity.
    What it is: Energy storage capacity of the battery.
    When it matters: When you want rough battery context behind the runtime claim instead of trusting the advertised hours alone.

    Importance: MEDIUM

    Good value: >=100 mAh

    Lenovo HX03 Cardio has a lower battery capacity than the average fitness tracker (85 mAh vs 110 mAh). The average fitness tracker has 110 mAh of battery capacity.85 mAh vs 110 mAh
Total
Overall
Sports & Navigation
Battery
Display
Smart Features
Design & Durability
App & Wellness

Graphic comparison of Lenovo HX03 Cardio and

Attribute category
Attribute
No results found

Third-party reviews

United Kingdom
amazon
2.9
89 Reviews

(Reviews last updated: Jun 2026)

What customers like about Lenovo HX03 Cardio?

  • Integrated USB direct charging plug eliminates the need for separate cables
  • Good battery life, typically lasting between 7 to 10 days on a single charge
  • Lightweight and ergonomic silicone strap design provides a comfortable fit
  • Affordable budget-friendly pricing compared to similar trackers
  • IP68 water resistance rating allows for use during swimming or in rain

What customers dislike about Lenovo HX03 Cardio?

  • Poor display brightness makes it difficult to read data under direct sunlight
  • Inconsistent accuracy for heart rate monitoring and step counting
  • Connectivity issues with the 'Lenovo Life' or 'Healthy' app, including sync failures
  • Limited notification functionality, sometimes failing to show caller names or message details
  • Reports of durability issues, including devices becoming unresponsive after a few months

Expert reviews

M
maison-de-geek.com
29/03/2018
Review: The Lenovo Cardio Plus HX03W

The Maison de Geek review highlights the Lenovo Cardio Plus HX03W as an affordable, lightweight fitness tracker featuring a convenient USB charging port built into the strap and a clear 0.96-inch OLED screen. Pros include accurate sleep tracking, real-time heart rate monitoring, and a user-friendly mobile app, making it a strong budget option. However, the device is significantly...Read more

(Translated)Show original
A
androidpc.es
10/05/2026
Lenovo Cardio Plus HX03W: A Full-Screen Smart Wristband

The AndroidPC.es review highlights the Lenovo Cardio Plus HX03W as an affordable smart fitness tracker, priced at around 16€ ($19) via Gearbest.com, designed to replace the older HW01 model and compete directly with the Xiaomi Mi Band 2. The device features a 0.96-inch OLED elongated screen with a 128x64 pixel resolution, a Nordic 52832 chip, and full IP68 waterproof certification...Read more

(Translated)Show original

Video reviews

Best alternatives

xiaomi-smart-band-8-active
Xiaomi Smart Band 8 Active

Fitness trackers

8.1
huawei-band-10
Huawei Band 10

Fitness trackers

8.9
xiaomi-mi-band-8
Xiaomi Mi Band 8

Fitness trackers

8.9
xiaomi-mi-band-2
Xiaomi Mi Band 2

Fitness trackers

7.2
realme-band
Realme Band

Fitness trackers

7.1
xiaomi-smart-band-9-active
Xiaomi Smart Band 9 Active

Fitness trackers

8.3
honor-band-4
Honor Band 4

Fitness trackers

8.3
mykronoz-zefit4-hr
MyKronoz ZeFit4 HR

Fitness trackers

6.5
honor-band-5
Honor Band 5

Fitness trackers

8.2
xiaomi-redmi-smart-band-2
Xiaomi Redmi Smart Band 2

Fitness trackers

8.1
oneplus-band
OnePlus Band

Fitness trackers

8.1
oppo-band-style
Oppo Band Style

Fitness trackers

7.9

Compare Lenovo HX03 Cardio with

VS
VS

Compare