Wristband colour
Product details
This activity tracker for kids 6 and up makes fitness fun for the whole family with motivating challenges and a long-lasting battery.
Smartwatch functions | Alarm clock, Smart notifications, Timer + stopwatch |
Health functions | Pedometer, Sleep recording |
Activities | Fitness, Running, Swimming |
Operating system compatibility | Android, iOS |
Wristband material | Silicone |
Case material | Plastic |
Item number | 14955553 |
Manufacturer | Fitbit |
Category | Smartwatches |
Manufacturer no. | FB419BKBU |
Release date | 3.3.2021 |
Exact colour description | Astro Green, Cosmic Blue |
Watch type | Kids smartwatch |
Durability | Waterproof (5 ATM) |
Protection type (IP code) | Waterproof |
Operating system | Android, iOS |
Operating system compatibility | Android, iOS |
Smartwatch functions | Alarm clock, Smart notifications, Timer + stopwatch |
Health functions | Pedometer, Sleep recording |
Activities | Fitness, Running, Swimming |
Sensors | Accelerometer, Gyro sensor |
Screen technology | PMOLED |
Panel technology | OLED |
Display size (inches) | 0.72" |
Image resolution | 72 x 128 Pixels |
Wristband colour | Blue |
Wristband material | Silicone |
Wristband size | One size |
Strap description | Sports bracelet |
Strap fastener | Sledges |
Case colour | Blue |
Case material | Plastic |
Shape of watch | Square |
Case diameter | 37.39 mm |
Case thickness | 105 mm |
Connectivity | Bluetooth |
Bluetooth version | 4.2 |
Power supply | Rechargeable battery operated |
Battery type | LiPo |
Battery life (without GPS) | 8 days |
Charging time | 2 h |
Battery size | Device specific |
Battery life | 8 days |
battery runtime | 0.02 years |
Country of origin | Vietnam |
CO₂-Emission | |
Climate contribution |
Scope of delivery | Power cable |
Weight | 19.30 g |
Length | 21 cm |
Width | 17 cm |
Height | 2 cm |
Weight | 55 g |
Product Safety |
Specifications may include unverified machine translations.
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Reviews & Ratings
Statutory warranty score
How often does a product of this brand in the «Smartwatches» category have a defect within the first 24 months?
Source: Galaxus- 16.Polar2,9 %
- 17.Brandunit3 %
- 17.Fitbit3 %
- 17.Xiaomi3 %
- 20.Sigma Sport3,1 %
Statutory warranty case duration
How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
Source: Galaxus- 15.Xplora2 days
- 16.Coros3 days
- 16.Fitbit3 days
- 16.Polar3 days
- 16.TCL3 days
Return rate
How often is a product of this brand in the «Smartwatches» category returned?
Source: Galaxus- 2.Datel1,3 %
- 3.OPPO2,3 %
- 4.Fitbit2,6 %
- 5.CMF3 %
- 6.TCL3,3 %
Source: Galaxus
Translation: machine translated
Very good80/100

- In-app views for parents and children
- Colourful design
- Below-average performance compared to Fitbits for adults
- May not be suitable for the entire age group
The Fitbit Ace 3 activity tracker is suitable for the hectic everyday life of children and provides both children and parents with simple but informative data for monitoring activity and sleep. However, older children should look for a slightly more powerful tracker.
This test report belongs to a different type: Ace 3 (37.39 mm)