Fitbit One Review | 171 Data compared

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  • Avg. price in UK: ~£90
  • Avg. price in US: ~$100
  • Form factor: clip-on
  • Battery life: 14 days
  • Screen size: ?

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

6.5

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%

6.5

Technical Score

20.0%

?

User score

Good
6.5

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%

7.1

Sports & Navigation

20.0%

5.8

Battery

18.0%

5.0

Health

18.0%

6.9

Display

8.0%

5.2

Smart Features

8.0%

8.7

App & Wellness

4.0%

8.1

Connectivity

4.0%

7.6

Design & Durability

Good
?

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%

?

User reviews

30.0%

?

Popularity

  • 5.3
    Swimming

    Score components:

    28.0%

    9.0

    ATM rating

    24.0%

    4.0

    Open-water swim mode

    18.0%

    1.2

    Waterproof depth rating

    15.0%

    4.0

    GPS

    15.0%

    6.5

    Battery life

  • 8.6
    Kids

    Score components:

    30.0%

    6.5

    Battery life

    25.0%

    10

    Weight

    20.0%

    9.0

    ATM rating

    15.0%

    9.0

    Screen size

    10.0%

    10

    Price

  • No image
No image

Best prices in UK

    N/A~ £90

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 One is a compact, clip-on fitness tracker measuring 0.76 x 1.89 x 0.38 inches and weighing just 0.28 ounces, featuring a MEMS 3-axis accelerometer and an altimeter to monitor steps, distance, calories, and floors climbed. Its core characteristics include a monochrome OLED display that cycles through real-time stats and a vibrating motor for silent alarms, all powered by a lithium-ion polymer battery lasting 7 to 14 days. Main pros include its highly discreet form factor, exceptional battery life compared to wrist-based models, and accurate stair tracking. However, it is water-resistant rather than waterproof, uses a proprietary charging cable, and its clip-on design makes it prone to being lost or accidentally left in pockets during laundry.

Technical Specifications of Fitbit One

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%

?

Sports & Navigation

20.0%

?

Battery

18.0%

?

Health

18.0%

?

Display

8.0%

?

Smart Features

8.0%

?

App & Wellness

4.0%

?

Connectivity

4.0%

?

Design & Durability

6.5
Fitbit One has a technical score of 6.47 points, which is lower than 73.2% 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%

0.0

User reviews

30.0%

1.0

Popularity

?
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.
1.0
Fitbit One has a popularity of 1 points, which is lower than 58.2% 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%

6.5

Overall score

40.0%

10

Price

7.5
Fitbit One has a quality-to-price ratio of 7.5 points, which is lower than 71.8% 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

no
Fitbit One does not support heart rate monitoring. 60.3% 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

no
Fitbit One does not support Resting heart rate. 48.5% of fitness trackers support Resting heart rate.
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

no
Fitbit One does not support high and low heart rate alerts. 33.7% of fitness trackers support high and low heart rate alerts.
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

no
Fitbit One does not support irregular heart rate alerts. 11.5% of fitness trackers support irregular heart rate alerts.
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
Fitbit One does not have a blood oxygen sensor. 26.1% of fitness trackers have a blood oxygen sensor.
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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
Fitbit One 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
Fitbit One 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
Fitbit One 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
Fitbit One 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
Fitbit One does not support faster GPS acquisition. 7.2% of fitness trackers support faster GPS acquisition.
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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

no
Fitbit One does not support notifications. 73% 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
Fitbit One 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
Fitbit One 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
Fitbit One 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
Fitbit One 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
Fitbit One supports activity reports. 5.7% of fitness trackers support activity reports.
via Fitbit app
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
Fitbit One 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
Fitbit One 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

no
Fitbit One does not support inactivity alerts. 76.9% of fitness trackers support inactivity alerts.
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
Fitbit One 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

4.0
Fitbit One supports Bluetooth 4 which is newer than in 5.1% of fitness trackers and equal to that in 51.5% 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

20 m
Fitbit One offers a Bluetooth range of 20 m which is higher than that of 84.6% of fitness trackers and equal to that of 5.4% of fitness trackers.
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
Fitbit One 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
Fitbit One 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
Fitbit One does not support modern Wi-Fi. 1% of fitness trackers support modern Wi-Fi.
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

14 days
Fitbit One offers a battery life of 14 days which is longer than that of 60.4% of fitness trackers and equal to that of 13.9% 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

N/A
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

N/A
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

60 mAh
Fitbit One has a battery capacity of 60 mAh which is lower than that of 81% of fitness trackers and equal to that of 2.8% 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
Fitbit One 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

?
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
Fitbit One 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.
Monochrome OLED display.
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

?
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

?
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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

clip-on
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
Fitbit One 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
Fitbit One 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
Fitbit One has a replaceable watch band. 24.4% of fitness trackers have a replaceable watch band.
Quick-release band system.
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

N/A
Show more

Fitbit One vs the average fitness tracker

  • 4 days longer battery life
    Fitbit One has a higher battery life than the average fitness tracker (14 days vs 10 days). The average fitness tracker has 10 days of 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

    Fitbit One has a higher battery life than the average fitness tracker (14 days vs 10 days). The average fitness tracker has 10 days of battery life.14 days vs 10 days
  • Tracks elevation
    Fitbit One supports elevation tracking, while the average fitness tracker does not. 27.2% of fitness trackers support elevation tracking.
    What it is: Measures elevation gain and loss during activity.
    When it matters: When you train outdoors and want stronger positioning, route guidance, and navigation independence from your phone.

    Importance: LOW

    Fitbit One supports elevation tracking, while the average fitness tracker does not. 27.2% of fitness trackers support elevation tracking.
  • 63.7% lighter
    Fitbit One is lighter than the average fitness tracker (9.1 g vs 25 g). The average fitness tracker weighs 25 g.
    Clip-on module with clip.
    What it is: Weight of the device including strap.
    When it matters: When overall size, thickness, or weight affects comfort during all-day wear, sleep, or exercise.

    Importance: LOW

    Good value: <25 g

    Fitbit One is lighter than the average fitness tracker (9.1 g vs 25 g). The average fitness tracker weighs 25 g.9.07 g vs 25 g
  • Mac OS X compatible
    Fitbit One is compatible with Mac OS X, while the average fitness tracker is not. 27.5% of fitness trackers are compatible with Mac OS X.
    Via Fitbit Connect.
    What it is: Compatible with macOS devices.
    When it matters: When compatibility with your phone, computer, accessories, or wireless setup affects how well the tracker fits into your ecosystem.

    Importance: LOW

    Fitbit One is compatible with Mac OS X, while the average fitness tracker is not. 27.5% of fitness trackers are compatible with Mac OS X.
  • Built-in barometer
    Fitbit One has a barometer, while the average fitness tracker does not. 10.7% of fitness trackers have a barometer.
    What it is: Measures air pressure and elevation changes.
    When it matters: When you train outdoors and want stronger positioning, route guidance, and navigation independence from your phone.

    Importance: LOW

    Fitbit One has a barometer, while the average fitness tracker does not. 10.7% of fitness trackers have a barometer.
  • 10 m longer Bluetooth range
    Fitbit One has a longer Bluetooth range than the average fitness tracker (20 m vs 10 m). The average fitness tracker offers a Bluetooth range of 10 m.
    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

    Fitbit One has a longer Bluetooth range than the average fitness tracker (20 m vs 10 m). The average fitness tracker offers a Bluetooth range of 10 m.20 m vs 10 m
  • Tracks calorie intake
    Fitbit One supports calorie intake tracking, while the average fitness tracker does not. 39.3% of fitness trackers support calorie intake tracking.
    Calorie intake can be logged in the official companion app.
    What it is: Logs daily calorie intake.
    When it matters: When tracking daily habits and body trends beyond workouts matters to your health routine.

    Importance: LOW

    Fitbit One supports calorie intake tracking, while the average fitness tracker does not. 39.3% of fitness trackers support calorie intake tracking.
  • Water intake tracking
    Fitbit One supports water intake tracking, while the average fitness tracker does not. 47% of fitness trackers support water intake tracking.
    Water intake can be logged in the official companion app.
    What it is: Tracks daily water consumption.
    When it matters: When tracking daily habits and body trends beyond workouts matters to your health routine.

    Importance: LOW

    Fitbit One supports water intake tracking, while the average fitness tracker does not. 47% of fitness trackers support water intake tracking.
  • Tracks elevation
    Fitbit One supports elevation tracking, while the average fitness tracker does not. 27.2% of fitness trackers support elevation tracking.
  • Built-in barometer
    Fitbit One has a barometer, while the average fitness tracker does not. 10.7% of fitness trackers have a barometer.
  • 4 days longer battery life
    Fitbit One has a higher battery life than the average fitness tracker (14 days vs 10 days). The average fitness tracker has 10 days of battery life.
  • Mac OS X compatible
    Fitbit One is compatible with Mac OS X, while the average fitness tracker is not. 27.5% of fitness trackers are compatible with Mac OS X.
  • 10 m longer Bluetooth range
    Fitbit One has a longer Bluetooth range than the average fitness tracker (20 m vs 10 m). The average fitness tracker offers a Bluetooth range of 10 m.
  • 1 more physical buttons
    Fitbit One has a higher physical buttons than the average fitness tracker (1 vs 0). The average fitness tracker has 0 of physical buttons.
  • Firmware update method
    Fitbit One uses a more convenient firmware update method than the average fitness tracker (over-the-air / USB vs over-the-air). The average fitness tracker uses over-the-air for firmware updates.
  • 63.7% lighter
    Fitbit One is lighter than the average fitness tracker (9.1 g vs 25 g). The average fitness tracker weighs 25 g.
  • 1.35 mm thinner design
    Fitbit One is thinner than the average fitness tracker (9.7 mm vs 11 mm). The average fitness tracker has a thickness of 11 mm.
  • Tracks calorie intake
    Fitbit One supports calorie intake tracking, while the average fitness tracker does not. 39.3% of fitness trackers support calorie intake tracking.
  • Water intake tracking
    Fitbit One supports water intake tracking, while the average fitness tracker does not. 47% of fitness trackers support water intake tracking.
  • No heart rate monitoring
    Fitbit One does not support heart rate monitoring, while the average fitness tracker does. 60% of fitness trackers support heart rate monitoring.
  • No sleep reports
    Fitbit One does not support sleep reports, while the average fitness tracker does. 84.8% of fitness trackers support sleep reports.
  • No automatic activity detection
    Fitbit One does not support automatic activity detection, while the average fitness tracker does. 50.3% of fitness trackers support automatic activity detection.
  • No pace measurement
    Fitbit One does not support pace measurement, while the average fitness tracker does. 61.3% of fitness trackers support pace measurement.
  • 0.5 hours longer charging time
    Fitbit One has a higher charging time than the average fitness tracker (2 hours vs 1.5 hours). The average fitness tracker needs 1.5 hours to charge.
  • 45.5% smaller battery capacity
    Fitbit One has a lower battery capacity than the average fitness tracker (60 mAh vs 110 mAh). The average fitness tracker has 110 mAh of battery capacity.
  • No notifications
    Fitbit One does not support notifications, while the average fitness tracker does. 72.6% of fitness trackers support notifications.
  • No stopwatch
    Fitbit One does not have a stopwatch, while the average fitness tracker does. 58.4% of fitness trackers have a stopwatch.
  • 49 m lower waterproof depth rating
    Fitbit One has a lower waterproof depth rating than the average fitness tracker (1 m vs 50 m). The average fitness tracker has a waterproof depth rating of 50 m.
  • 7.2 mm greater height
    Fitbit One is taller than the average fitness tracker (48 mm vs 40.8 mm). The average fitness tracker has a height of 40.8 mm.
  • 20 °C higher minimum operating temperature
    Fitbit One has a higher minimum operating temperature than the average fitness tracker (-20 °C vs 0 °C). The average fitness tracker supports a minimum operating temperature of 0 °C.
  • 4 older release date
    Fitbit One was released earlier than the average fitness tracker (2012 vs 2016). The average fitness tracker was released in 2016.
    November 2012
  • No inactivity alerts
    Fitbit One does not support inactivity alerts, while the average fitness tracker does. 76.5% of fitness trackers support inactivity alerts.
  • Ads in app
    Fitbit One shows ads in the app, while the average fitness tracker does not. 50.6% of fitness trackers have an ad-free app.
  • No heart rate monitoring
    Fitbit One does not support heart rate monitoring, while the average fitness tracker does. 60% of fitness trackers support heart rate monitoring.
    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

    Fitbit One does not support heart rate monitoring, while the average fitness tracker does. 60% of fitness trackers support heart rate monitoring.
  • No automatic activity detection
    Fitbit One does not support automatic activity detection, while the average fitness tracker does. 50.3% of fitness trackers support automatic activity detection.
    What it is: Automatically recognizes and records physical activities.
    When it matters: When you want common workouts captured even on days when you forget to start tracking manually.

    Importance: MEDIUM

    Fitbit One does not support automatic activity detection, while the average fitness tracker does. 50.3% of fitness trackers support automatic activity detection.
  • No pace measurement
    Fitbit One 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

    Fitbit One does not support pace measurement, while the average fitness tracker does. 61.3% of fitness trackers support pace measurement.
  • No notifications
    Fitbit One does not support notifications, while the average fitness tracker does. 72.6% of fitness trackers support 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

    Fitbit One does not support notifications, while the average fitness tracker does. 72.6% of fitness trackers support notifications.
  • 0.5 hours longer charging time
    Fitbit One has a higher charging time than the average fitness tracker (2 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

    Fitbit One has a higher charging time than the average fitness tracker (2 hours vs 1.5 hours). The average fitness tracker needs 1.5 hours to charge.2 hours vs 1.5 hours
  • No sleep reports
    Fitbit One does not support sleep reports, while the average fitness tracker does. 84.8% of fitness trackers support sleep reports.
    What it is: Shows whether the companion platform turns sleep data into reports or summaries instead of only raw nightly logs.
    When it matters: When you want sleep data turned into clearer nightly summaries instead of digging through raw charts on your own.

    Importance: LOW

    Fitbit One does not support sleep reports, while the average fitness tracker does. 84.8% of fitness trackers support sleep reports.
  • 45.5% smaller battery capacity
    Fitbit One has a lower battery capacity than the average fitness tracker (60 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

    Fitbit One has a lower battery capacity than the average fitness tracker (60 mAh vs 110 mAh). The average fitness tracker has 110 mAh of battery capacity.60 mAh vs 110 mAh
  • 49 m lower waterproof depth rating
    Fitbit One has a lower waterproof depth rating than the average fitness tracker (1 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

    Fitbit One has a lower waterproof depth rating than the average fitness tracker (1 m vs 50 m). The average fitness tracker has a waterproof depth rating of 50 m.1 m vs 50 m

Graphic comparison of Fitbit One and

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Third-party reviews

What customers like about Fitbit One?

  • Discreet and compact clip-on design that is easy to conceal on clothing
  • Highly accurate for counting steps and tracking flights of stairs climbed
  • Long-lasting battery life, typically lasting between 5 to 7 days per charge
  • Bright OLED screen provides immediate viewing of stats and motivational messages
  • Syncs wirelessly and easily with both smartphones and computers
  • Strong community support and integration with various third-party health apps
  • Includes a silent vibrating alarm that wakes the user without disturbing others

What customers dislike about Fitbit One?

  • Small size makes it very easy to lose or accidentally leave in clothes sent to the laundry
  • Sleep tracking is not automatic and requires manually pressing a button and wearing an uncomfortable wristband
  • Device is only splash-proof and can be easily damaged if submerged in water or put through a washing machine
  • Limited tracking for non-stepping activities like cycling, weightlifting, or yoga
  • Lacks modern features like built-in GPS and heart rate monitoring
  • The silicone clip holder can stretch over time, increasing the risk of the device falling out
  • Recent user reports indicate increasing synchronization issues with newer mobile operating systems

Expert reviews

A
akanekinomoto.com
12/07/2013
Summary of the review
C
cnet.com
22/04/2013
Summary of the review
C
cnet.com
30/04/2013
Summary of the review
T
t3.com
29/01/2013
Summary of the review
T
techradar.com
12/12/2012
Summary of the review
P
programmingzen.com
12/03/2021
Summary of the review
G
goughlui.com
01/07/2016
Summary of the review
G
gadfit.com
24/11/2013
Summary of the review
G
gizmodo.com
24/10/2012
Summary of the review
O
outdoorgearlab.com
11/11/2016
Summary of the review
T
techgearlab.com
11/01/2017
Summary of the review
E
expertreviews.co.uk
06/10/2016
Summary of the review
F
feelingfit.info
14/08/2014
Summary of the review
U
uk.pcmag.com
16/05/2014
Summary of the review
C
connect.de
23/05/2014
Summary of the review
N
newgadgets.de
20/07/2013
Summary of the review
M
marathonfitness.de
21/02/2026
Summary of the review
D
digitec.ch
06/07/2017
Summary of the review
S
stuffi.fr
13/01/2013
Summary of the review
L
leclaireur.fnac.com
13/08/2013
Summary of the review
L
lesnumeriques.com
02/03/2013
Summary of the review
L
lesnumeriques.com
02/03/2013
Summary of the review
E
emilcar.es
27/05/2013
Summary of the review

Video reviews

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