Scored using Fitness trackers Methodology v1.0
Fitness trackers Methodology v1.0
Mathematical & Unbiased Scoring
Products in this category are evaluated mathematically under Frontumo Fitness trackers Methodology v1.0 using verified laboratory benchmarks, technical specifications, and authentic consumer ratings with 0% commercial bias.
Explore Fitness trackers Methodology v1.0

Fitbit Ace 3 Review | 171 Data compared

Avg. price:~£60Battery life:8 daysScreen size:1.47 inchHeart rate monitor:noGPS:noWaterproof depth rating:50 m

Fitbit Ace 3 Review: Compare 171 technical specifications and user reviews to see how this product ranks in the Fitness trackers category and whether it is worth buying.

6.2

Overall score

Score
6.2/ 10
✕
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 distribution
▼
<55-66-77-88-99-10
Score components

80%

5.7

Technical score

20%

8.0

User score

▼Worse than 84% of fitness-trackers
5.7

Technical score

Technical score
5.7/ 10
✕
What it is
An assessment of technical performance for products in the Fitness trackers category across these key areas: Health, Sports & Navigation, Smart Features, App & Wellness, Connectivity, Battery, Display, Design & Durability.
When it matters
When you want to compare fitness trackers based on technical performance and available features.
Score distribution
▼
<55-66-77-88-99-10
Score components

20%

4.8

Sports & Navigation

20%

4.6

Battery

18%

5.3

Health

18%

6.2

Display

8%

7.2

Smart Features

8%

7.2

App & Wellness

4%

8.0

Connectivity

4%

8.3

Design & Durability

▼Worse than 93% of fitness-trackers
8.0

User score

User score
8.0/ 10
✕
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 distribution
▼
<55-66-77-88-99-10
Score components

70%

8.0

User ratings

30%

8.2

Number of reviews

Based on 1,902 buyer reviews from online shops.
How we calculate this
User ratings – average star rating across all shop listings, weighted by how many reviews each has, on a 1–10 scale.
Number of reviews – how many buyer reviews the product has, on a logarithmic scale; the 8% most-reviewed models in the category get 10.
▲Better than 71% of fitness-trackers
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Best rankings

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Technical Specifications of fitness tracker Fitbit Ace 3

Technical score
Technical score
5.7/ 10
✕
What it is
An assessment of technical performance for products in the Fitness trackers category across these key areas: Health, Sports & Navigation, Smart Features, App & Wellness, Connectivity, Battery, Display, Design & Durability.
When it matters
When you want to compare fitness trackers based on technical performance and available features.
Score distribution
▼
<55-66-77-88-99-10
Score components:

20%

4.8

Sports & Navigation

20%

4.6

Battery

18%

5.3

Health

18%

6.2

Display

8%

7.2

Smart Features

8%

7.2

App & Wellness

4%

8.0

Connectivity

4%

8.3

Design & Durability

5.7
User score
User score
8.0/ 10
✕
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 distribution
▼
<55-66-77-88-99-10
Score components

70%

8.0

User ratings

30%

8.2

Number of reviews

Based on 1,902 buyer reviews from online shops.
How we calculate this
User ratings – average star rating across all shop listings, weighted by how many reviews each has, on a 1–10 scale.
Number of reviews – how many buyer reviews the product has, on a logarithmic scale; the 8% most-reviewed models in the category get 10.
8.0
Popularity
Popularity
8.2/ 10
✕
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.
Score distribution
▼
<55-66-77-88-99-10
Popularity:
Fitbit Ace 3 has a popularity score of 8.2 points, which is higher than 70.9% of fitness trackers.
8.2
Value for money
Value for money
7.3/ 10
✕
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 distribution
▼
<55-66-77-88-99-10
Score components:

60%

6.2

Overall score

40%

10

Price

7.3
Heart rate monitor
no
Heart rate monitor
no
This fitness tracker does not support heart rate monitoring. 60.3% of fitness trackers support heart rate monitoring.
Resting heart rate
?
Fast/slow heart rate alerts
no
Fast/slow heart rate alerts
no
This fitness tracker does not support high and low heart rate alerts. 34.7% of fitness trackers support high and low heart rate alerts.
Irregular heart rate alerts
no
Irregular heart rate alerts
no
This fitness tracker does not support irregular heart rate alerts. 12.4% of fitness trackers support irregular heart rate alerts.
Blood oxygen sensor
no
Blood oxygen sensor
no
This fitness tracker does not have a blood oxygen sensor. 25.4% of fitness trackers have a blood oxygen sensor.
Show more
GPS
no
GPS
no
This fitness tracker does not have GPS. 11% of fitness trackers have GPS.
Satellite systems supported
?
GNSS bands supported
no
GNSS bands supported
no
This fitness tracker does not support advanced GNSS bands. 8.9% of fitness trackers support advanced GNSS bands.
Galileo support
no
Galileo support
no
This fitness tracker does not support Galileo. 4.9% of fitness trackers support Galileo.
Acquires GPS faster
no
Acquires GPS faster
no
This fitness tracker does not support faster GPS acquisition. 8.1% of fitness trackers support faster GPS acquisition.
Show more
Notifications
yes
Notifications
yes
This fitness tracker supports notifications. 27.5% of fitness trackers support notifications.
limited to call/SMS alerts.
Vibrating alerts
yes
Vibrating alerts
yes
This fitness tracker supports vibration alerts. 16.3% of fitness trackers support vibration alerts.
Call control
no
Call control
no
This fitness tracker does not support call controls. 41.8% of fitness trackers support call controls.
Call answering
no
Call answering
no
This fitness tracker does not support call answering. 1% of fitness trackers support call answering.
Calendar sync
no
Calendar sync
no
This fitness tracker does not support calendar sync. 20.3% of fitness trackers support calendar sync.
Show more
Activity reports
yes
Activity reports
yes
This fitness tracker supports activity reports. 5.7% of fitness trackers support activity reports.
via Fitbit app
Goal setting
yes
Goal setting
yes
This fitness tracker supports goal setting. 2.4% of fitness trackers support goal setting.
Achievements
yes
Achievements
yes
This fitness tracker supports achievements. 24.3% of fitness trackers support achievements.
Inactivity alerts
yes
Inactivity alerts
yes
This fitness tracker supports inactivity alerts. 23.5% of fitness trackers support inactivity alerts.
Coaching
no
Coaching
no
This fitness tracker does not support coaching. 34% of fitness trackers support coaching.
Show more
Bluetooth version
4.2
Bluetooth version
4.2
This fitness tracker supports Bluetooth 4.2 which is newer than in 59.9% of fitness trackers and equal to that in 14.2% of fitness trackers.
Maximum Bluetooth range
9 m
Maximum Bluetooth range
9 m
This fitness tracker offers a Bluetooth range of 9 m which is lower than that of 88.8% of fitness trackers and equal to that of 1.5% of fitness trackers.
NFC
no
NFC
no
This fitness tracker does not have NFC. 13% of fitness trackers have NFC.
Wi-Fi connectivity
no
Wi-Fi connectivity
no
This fitness tracker does not support Wi-Fi. 1.8% of fitness trackers support Wi-Fi.
Wi-Fi version
no
Wi-Fi version
no
This fitness tracker does not support modern Wi-Fi. 1% of fitness trackers support modern Wi-Fi.
no Wi-Fi support.
Show more
Battery life
8 days
Battery life
8 days
This fitness tracker offers a battery life of 8 days which is shorter than that of 51.5% of fitness trackers and equal to that of 1.5% of fitness trackers.
Battery life with GPS on
N/A
Battery life in training mode
?
Battery life in power-saving mode
N/A
Battery capacity
30 mAh
Battery capacity
30 mAh
This fitness tracker has a battery capacity of 30 mAh which is lower than that of 96.1% of fitness trackers.
Show more
Display
yes
Display
yes
This fitness tracker has a display. 24.1% of fitness trackers have a display.
Screen size
1.47 inch
Screen size
1.47 inch
This fitness tracker has a screen size of 1.47 inch which is larger than that of 75.5% of fitness trackers and equal to that of 9.1% of fitness trackers.
Display type
PMOLED
Display type
PMOLED
This fitness tracker uses PMOLED display technology which is less advanced than that of 53.9% of fitness trackers and the same as that of 7.7% of fitness trackers.
Screen resolution
?
Pixel density
230 ppi
Pixel density
230 ppi
This fitness tracker has a pixel density of 230 ppi which is lower than that of 53.7% of fitness trackers.
Show more
Form factor
wristband
Hybrid design
no
Hybrid design
no
This fitness tracker does not support Hybrid design. 2.4% of fitness trackers support Hybrid design.
Designed for kids
yes
Designed for kids
yes
This fitness tracker is designed for kids. 98.1% of fitness trackers are designed for kids.
Explicit kids tracker line.
Replaceable watch band
yes
Replaceable watch band
yes
This fitness tracker has a replaceable watch band. 25.6% of fitness trackers have a replaceable watch band.
Band width
16 mm
Show more

Fitbit Ace 3 vs the average fitness tracker

246810TotalHealthSports & NavigationBatteryDisplayConnectivitySmart FeaturesDesign & DurabilityApp & Wellness
  • 0.43 inch larger screen size
    Screen size
    1.47 inch
    This fitness tracker has a higher screen size than the average fitness tracker (1.5 inch vs 1.04 inch). The average fitness tracker has a screen size of 1.04 inch.
    1.47 inch vs 1.04 inch
  • Branded damage-resistant glass
    Has branded damage-resistant glass
    yes
    This fitness tracker uses branded damage-resistant glass, while the average fitness tracker does not. 22.2% of fitness trackers use branded damage-resistant glass.
    Corning Gorilla Glass 3.
  • Mac OS X compatible
    Compatible with Mac OS X
    yes
    This fitness tracker is compatible with Mac OS X, while the average fitness tracker is not. 28.8% of fitness trackers are compatible with Mac OS X.
    Via Fitbit Connect.
  • Modern Bluetooth version
    Bluetooth version
    4.2
    This fitness tracker supports a newer Bluetooth version than the average fitness tracker (4.2 vs 4). The average fitness tracker supports Bluetooth 4.0.
    4.2 vs 4.0
  • 22.8% lighter
    Thickness
    19.3 g mm
    This fitness tracker is lighter than the average fitness tracker (19.3 g vs 25 g). The average fitness tracker weighs 25 g.
    19.3 g vs 25 g
  • More child-focused design
    Designed for kids
    yes
    This fitness tracker is designed for kids, while the average fitness tracker is not. 2.3% of fitness trackers are designed for kids.
    Explicit kids tracker line.
  • Gesture control
    Gesture control
    yes
    This fitness tracker supports gesture controls, while the average fitness tracker does not. 40.8% of fitness trackers support gesture controls.
  • 0.43 inch larger screen size
    Screen size
    1.47 inch
    This fitness tracker has a higher screen size than the average fitness tracker (1.5 inch vs 1.04 inch). The average fitness tracker has a screen size of 1.04 inch.
    1.47 inch vs 1.04 inch
  • Branded damage-resistant glass
    Has branded damage-resistant glass
    yes
    This fitness tracker uses branded damage-resistant glass, while the average fitness tracker does not. 22.2% of fitness trackers use branded damage-resistant glass.
    Corning Gorilla Glass 3.
  • Mac OS X compatible
    Compatible with Mac OS X
    yes
    This fitness tracker is compatible with Mac OS X, while the average fitness tracker is not. 28.8% of fitness trackers are compatible with Mac OS X.
    Via Fitbit Connect.
  • Modern Bluetooth version
    Bluetooth version
    4.2
    This fitness tracker supports a newer Bluetooth version than the average fitness tracker (4.2 vs 4). The average fitness tracker supports Bluetooth 4.0.
    4.2 vs 4.0
  • Gesture control
    Gesture control
    yes
    This fitness tracker supports gesture controls, while the average fitness tracker does not. 40.8% of fitness trackers support gesture controls.
  • 22.8% lighter
    Thickness
    19.3 g mm
    This fitness tracker is lighter than the average fitness tracker (19.3 g vs 25 g). The average fitness tracker weighs 25 g.
    19.3 g vs 25 g
  • More child-focused design
    Designed for kids
    yes
    This fitness tracker is designed for kids, while the average fitness tracker is not. 2.3% of fitness trackers are designed for kids.
    Explicit kids tracker line.
  • No heart rate monitoring
    Heart rate monitor
    no
    This fitness tracker does not support heart rate monitoring, while the average fitness tracker does. 60% of fitness trackers support heart rate monitoring.
  • No automatic activity detection
    Automatic activity detection
    no
    This fitness tracker does not support automatic activity detection, while the average fitness tracker does. 52% of fitness trackers support automatic activity detection.
  • No pace measurement
    Measures pace
    no
    This fitness tracker does not support pace measurement, while the average fitness tracker does. 61.7% of fitness trackers support pace measurement.
  • No distance tracking
    Distance tracking
    no
    This fitness tracker does not support distance tracking, while the average fitness tracker does. 95.8% of fitness trackers support distance tracking.
  • No exercise tagging
    Exercise tagging
    no
    This fitness tracker does not support exercise tagging, while the average fitness tracker does. 58.4% of fitness trackers support exercise tagging.
  • 72.7% smaller battery capacity
    Battery capacity
    30 mAh
    This fitness tracker has a lower battery capacity than the average fitness tracker (30 mAh vs 110 mAh). The average fitness tracker has 110 mAh of battery capacity.
    30 mAh vs 110 mAh
  • No sleep reports
    Provides sleep reports
    no
    This fitness tracker does not support sleep reports, while the average fitness tracker does. 84.8% of fitness trackers support sleep reports.
  • No weight tracking
    Weight tracking
    no
    This fitness tracker does not support weight tracking, while the average fitness tracker does. 81% of fitness trackers support weight tracking.
  • 8% worse value for money
    Fitbit Ace 3 has a lower value-for-money score than the average fitness tracker (7.33 vs 7.9).
    7.33 vs 7.92
  • No heart rate monitoring
    Heart rate monitor
    no
    This fitness tracker does not support heart rate monitoring, while the average fitness tracker does. 60% of fitness trackers support heart rate monitoring.
  • No sleep reports
    Provides sleep reports
    no
    This fitness tracker does not support sleep reports, while the average fitness tracker does. 84.8% of fitness trackers support sleep reports.
  • 72.7% smaller battery capacity
    Battery capacity
    30 mAh
    This fitness tracker has a lower battery capacity than the average fitness tracker (30 mAh vs 110 mAh). The average fitness tracker has 110 mAh of battery capacity.
    30 mAh vs 110 mAh
  • 2 days shorter battery life
    Battery life
    8 days
    This fitness tracker has a lower battery life than the average fitness tracker (8 days vs 10 days). The average fitness tracker has 10 days of battery life.
    8 days vs 10 days
  • 11.1% lower screen brightness
    Screen brightness
    400 nits
    This fitness tracker has a lower screen brightness than the average fitness tracker (400 nits vs 450 nits). The average fitness tracker has screen brightness of 450 nits.
    400 nits vs 450 nits
  • 1 m shorter Bluetooth range
    Maximum Bluetooth range
    9 m
    This fitness tracker has a shorter Bluetooth range than the average fitness tracker (9 m vs 10 m). The average fitness tracker offers a Bluetooth range of 10 m.
    9 m vs 10 m
  • Limited ip rating
    IP rating
    IPX8
    This fitness tracker has a lower IP rating than the average fitness tracker (IPX8 vs IP68). The average fitness tracker has an IP rating of IP68.
    IPX8 vs IP68
  • 2 mm thicker design
    Thickness
    13 mm
    This fitness tracker is thicker than the average fitness tracker (13 mm vs 11 mm). The average fitness tracker has a thickness of 11 mm.
    13 mm vs 11 mm
  • 10 °C higher minimum operating temperature
    Min operating temperature
    -10 °C
    This fitness tracker has a higher minimum operating temperature than the average fitness tracker (-10 °C vs 0 °C). The average fitness tracker supports a minimum operating temperature of 0 °C.
    -10 °C vs 0 °C
  • No weight tracking
    Weight tracking
    no
    This fitness tracker does not support weight tracking, while the average fitness tracker does. 81% of fitness trackers support weight tracking.
  • No calorie burn tracking
    Calorie burn tracking
    no
    This fitness tracker does not support calorie burn tracking, while the average fitness tracker does. 98.1% of fitness trackers support calorie burn tracking.
    Calorie tracking was removed for child accounts.
  • No BMI tracking
    BMI tracking
    no
    This fitness tracker does not support BMI tracking, while the average fitness tracker does. 71% of fitness trackers support BMI tracking.

Video reviews

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Expert reviews

In-depth analysis and verdict from leading tech publications

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techradar.com
19/05/2021
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26/04/2022
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futurefive.co.nz
30/04/2021
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04/04/2021
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shanethegamer.com
06/05/2021
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01/09/2021
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techadvisor.com
01/06/2021
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expertreviews.co.uk
27/04/2021
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A
androidcentral.com
17/03/2021
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t3.com
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pcmag.com
29/06/2023
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geekbecois.com
23/04/2021
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rtl.be
09/04/2021
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F
flair.be
28/04/2021
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U
uk.pcmag.com
29/06/2023
Summary of the review
T
techprincess.it
16/04/2021
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macitynet.it
05/04/2021
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gadgetgear.nl
06/06/2021
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Third-party reviews

Based on 1,902 buyer reviews from online shops.
Reviews last updated: June 2026 · How we calculate this

What we like about Fitbit Ace 3

  • Impressive battery life lasting up to 8 days per charge
  • Durable, water-resistant design suitable for swimming and active play
  • Engaging animated clock faces and badges that motivate kids to move
  • Comfortable silicone strap that is gentle on sensitive skin
  • Useful 'Kid View' in the app allows children to see their own stats safely
  • Passive tracking of steps and sleep without needing manual input

What we don't like about Fitbit Ace 3

  • Lacks GPS or location tracking features for safety monitoring
  • Monochrome/greyscale display is less vibrant than some competitors
  • Setup and syncing process can be complex and non-intuitive for parents
  • Charging cable is considered too short by many users
  • Does not support heart rate monitoring or floor climbing stats
  • Switching between parent and child views in the app can be tedious

Verdict

The Fitbit Ace 3 is a rugged activity tracker designed for children aged 6+, featuring a 1.4-inch PMOLED grayscale touchscreen and up to 8 days of battery life. It tracks daily steps and active minutes while offering sleep monitoring and silent alarms to help build healthy routines. A major pro is its water resistance up to 50 meters, making it safe for swimming and spills, alongside its kid-friendly animated clock faces and durable silicone band that protects the screen. However, it lacks built-in GPS and heart rate monitoring, and some users may find its monochrome display less engaging than colorful alternatives.

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