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Height
  • 16,7 mm
  • 16,7 mm
Compatible with operating system
  • Android, iOS
  • Android, iOS
Shows smartphone messages
  • Yes
  • Yes
Phone calls via watch possible
  • No
  • No
Water resistance
  • Waterproof
  • Waterproof



Product number
  • 878743
  • 878744
Manufacturer code
  • FB419BKRD
  • FB419BKBU
Brand
  • Fitbit
  • Fitbit
Warranty
  • 2 years
  • 2 years
Warranty type
  • Carry-in warranty
  • Carry-in warranty
Old product returned for free
  • Yes
  • Yes

Generation
  • Children
  • Children
Gender children
  • Boys, Girls
  • Boys, Girls

Data display
  • Digital
  • Digital
Integrated screen
  • Yes
  • Yes
Screen size
  • 0,72 inch
  • 0,72 inch
Screen type
  • OLED
  • OLED
Touchscreen
  • Yes
  • Yes
Always-on display
  • No
  • No
Color screen
  • No
  • No

Watch case shape
  • Rectangle
  • Rectangle
Height
  • 16,7 mm
  • 16,7 mm
Width
  • 37,3 mm
  • 37,3 mm
Size watch case
  • Small
  • Small
Recommended for wrist circumference
  • 15 cm
  • 15 cm
Depth
  • 12,9 mm
  • 12,9 mm
Weight
  • 8,5 g
  • 8,5 g
Watch case material
  • Plastic
  • Plastic
Type of glass
  • Plastic
  • Plastic
Watch case color
  • Black
  • Blue
Water-resistant
  • Yes
  • Yes
IP certification
  • IPX8
  • IPX8
Water resistance
  • Waterproof
  • Waterproof

Type of watch strap
  • Standard
  • Standard
Closure type
  • Buckle
  • Buckle
Minimum wrist circumference
  • 12,2 cm
  • 12,2 cm
Maximum wrist circumference
  • 17,3 cm
  • 17,3 cm
Watch strap color
  • Black
  • Blue
Watch strap material
  • Plastic
  • Plastic
Type of plastic watch strap
  • Silicone
  • Silicone
Interchangeable watch strap
  • Yes
  • Yes
Compatibility watch strap
  • Product specific
  • Product specific

Soort uurwerk
  • Battery
  • Battery

Compatible with operating system
  • Android, iOS
  • Android, iOS
Compatible with Android version
  • Android 10.0, Android 11.0, Android 7.0 Nougat, Android 7.1 Nougat, Android 8.0 Oreo, Android 9.0 Pie
  • Android 10.0, Android 11.0, Android 7.0 Nougat, Android 7.1 Nougat, Android 8.0 Oreo, Android 9.0 Pie
Compatible with iOS version
  • iOS 12.0, iOS 13.0, iOS 14.0
  • iOS 12.0, iOS 13.0, iOS 14.0
Required iPhone model
  • iPhone 6 or later
  • iPhone 6 or later
Operating system
  • Brand-specific
  • Brand-specific
Guaranteed support with updates
  • 24 months after release date
  • 24 months after release date
App installation possible
  • No
  • No
Shows smartphone messages
  • Yes
  • Yes
Required Android version messages received
  • Android 7.0 or higher
  • Android 7.0 or higher
Required iOS version messages received
  • iOS 12 or higher
  • iOS 12 or higher
Smartphone notifications
  • Caller ID, Notifications, Receive messages
  • Caller ID, Notifications, Receive messages
Notification
  • Notification on screen, Vibration
  • Notification on screen, Vibration
Bluetooth
  • Yes
  • Yes
Integrated WiFi
  • No
  • No
ANT+
  • No
  • No
NFC
  • No
  • No
Phone calls via watch possible
  • No
  • No
Camera operation
  • No
  • No
Independent music player
  • No
  • No

Heart rate measurement
  • No
  • No

GPS sensor
  • No
  • No

Altimeter
  • No
  • No
Compass
  • No
  • No
Gyroscope
  • No
  • No
Thermometer
  • No
  • No
Accelerometer
  • Yes
  • Yes
Oximeter
  • No
  • No
EDA Sensor
  • No
  • No
Skin temperature sensor
  • No
  • No

Measuring activities
  • Yes
  • Yes
Measure
  • Calorie burning, Distance, Sleep, Steps
  • Calorie burning, Distance, Sleep, Steps
Automatic motion detection
  • Yes
  • Yes
Motion reminder
  • Yes
  • Yes
Automatic step goal
  • Yes
  • Yes
Calorie measurement based on heart rate
  • No
  • No
Monitor water intake
  • No
  • No
Sleep duration
  • Yes
  • Yes
Sleep quality
  • No
  • No
Indicating bed time
  • Yes
  • Yes
Blood pressure monitor
  • No
  • No
Fall detection
  • No
  • No
Pregnancy monitoring
  • No
  • No
Menstrual cycle tracking
  • No
  • No

Recommended for sports
  • Fitness, Running
  • Fitness, Running
Amount of data shown on screen
  • 4
  • 4
Race prognosis
  • No
  • No
Save personal records
  • No
  • No
Live tracking
  • No
  • No
Animated workouts
  • No
  • No
Adjust sport profiles
  • No
  • No