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Average rating
Battery life
  • 4.1 / 5 stars
    0 reviews
  • 4.1 / 5 stars
    0 reviews
  • 3.2 / 5 stars
    0 reviews
  • 3.2 / 5 stars
    0 reviews
  • 4 / 5 stars
    0 reviews
Design
  • 4.5 / 5 stars
    0 reviews
  • 4.5 / 5 stars
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  • 4.8 / 5 stars
    0 reviews
  • 4.8 / 5 stars
    0 reviews
  • 5 / 5 stars
    0 reviews
Options
  • 3.1 / 5 stars
    0 reviews
  • 3.1 / 5 stars
    0 reviews
  • 4.4 / 5 stars
    0 reviews
  • 4.4 / 5 stars
    0 reviews
  • 2 / 5 stars
    0 reviews
Wearing comfort
  • 4.5 / 5 stars
    0 reviews
  • 4.5 / 5 stars
    0 reviews
  • 4.2 / 5 stars
    0 reviews
  • 4.2 / 5 stars
    0 reviews
  • 5 / 5 stars
    0 reviews
Most helpful review

Product number
  • 866913
  • 866914
  • 865826
  • 865825
  • 866910
Manufacturer code
  • FB512BKBK
  • FB512GLWT
  • SM-R850NZDAEUB
  • SM-R850NZSAEUB
  • FB511BKBK
Brand
  • Fitbit
  • Fitbit
  • Samsung
  • Samsung
  • Fitbit
Warranty
  • 2 years
  • 2 years
  • 2 years
  • 2 years
  • 2 years
Warranty type
  • Carry-in warranty
  • Carry-in warranty
  • Carry-in warranty
  • Carry-in warranty
  • Carry-in warranty
Old product returned for free
  • Yes
  • Yes
  • Yes
  • Yes
  • Yes

Generation
  • Adults
  • Adults
  • Adults
  • Adults
  • Adults
Gender adults
  • Ladies, Men
  • Ladies, Men
  • Ladies, Men
  • Ladies, Men
  • Ladies, Men

Data display
  • Digital
  • Digital
  • Digital
  • Digital
  • Digital
Integrated screen
  • Yes
  • Yes
  • Yes
  • Yes
  • Yes
Screen size
  • 1,58 inch
  • 1,58 inch
  • 1,2 inch
  • 1,2 inch
  • 1,58 inch
Screen type
  • AMOLED
  • AMOLED
  • AMOLED
  • AMOLED
  • AMOLED
Touchscreen
  • Yes
  • Yes
  • Yes
  • Yes
  • Yes
Always-on display
  • Yes
  • Yes
  • Yes
  • Yes
  • Yes
Color screen
  • Yes
  • Yes
  • Yes
  • Yes
  • Yes

Watch case shape
  • Rectangle
  • Rectangle
  • Round
  • Round
  • Rectangle
Height
  • 40,48 mm
  • 40,48 mm
  • 40,48 mm
Width
  • 40,48 mm
  • 40,48 mm
  • 41 mm
  • 41 mm
  • 40,48 mm
Size watch case
  • Average
  • Average
  • Average
  • Average
  • Average
Recommended for wrist circumference
  • 15 - 17 cm
  • 15 - 17 cm
  • 17 - 19 cm
  • 17 - 19 cm
  • 15 - 17 cm
Depth
  • 12,35 mm
  • 12,35 mm
  • 11,1 mm
  • 11,1 mm
  • 12,35 mm
Weight
  • 33,1 g
  • 33,1 g
  • 48 g
  • 48 g
  • 28,5 g
Watch case material
  • Stainless steel
  • Stainless steel
  • Stainless steel
  • Stainless steel
  • Aluminum
Type of glass
  • Gorilla glass
  • Gorilla glass
  • Gorilla glass
  • Gorilla glass
  • Gorilla glass
Watch case color
  • Black
  • Rose gold
  • Rose gold
  • Silver
  • Black
Water-resistant
  • Yes
  • Yes
  • Yes
  • Yes
  • Yes
IP certification
  • IPX8
  • IPX8
  • IP68
  • IP68
  • IPX8
Water resistance
  • Waterproof
  • Waterproof
  • Waterproof
  • Waterproof
  • Waterproof

Type of watch strap
  • Standard
  • Standard
  • Standard
  • Standard
  • Standard
Closure type
  • Buckle
  • Buckle
  • Buckle
  • Buckle
  • Buckle
Minimum wrist circumference
  • 14 cm
  • 14 cm
  • 13 cm
  • 13 cm
  • 14 cm
Maximum wrist circumference
  • 22 cm
  • 22 cm
  • 19 cm
  • 19 cm
  • 22 cm
Watch strap color
  • Black
  • Beige
  • Pink
  • Black
  • Black
Watch strap material
  • Plastic
  • Plastic
  • Leather
  • Leather
  • Plastic
Type of plastic watch strap
  • Silicone
  • Silicone
  • Silicone
Interchangeable watch strap
  • Yes
  • Yes
  • Yes
  • Yes
  • Yes
Compatibility watch strap
  • Product specific
  • Product specific
  • Universal
  • Universal
  • Product specific
Watch strap connection width
  • 20mm
  • 20mm

Soort uurwerk
  • Battery
  • Battery
  • Battery
  • Battery
  • Battery

Compatible with operating system
  • Android, iOS
  • Android, iOS
  • Android, iOS
  • Android, iOS
  • Android, iOS
Compatible with Android version
  • Android 10.0, Android 7.0 Nougat, Android 7.1 Nougat, Android 8.0 Oreo, Android 9.0 Pie
  • Android 10.0, Android 7.0 Nougat, Android 7.1 Nougat, Android 8.0 Oreo, Android 9.0 Pie
  • Android 10.0, Android 5.0 Lollipop, Android 5.1 Lollipop, Android 6.0 Marshmallow, Android 7.0 Nougat, Android 7.1 Nougat, Android 8.0 Oreo, Android 9.0 Pie
  • Android 10.0, Android 5.0 Lollipop, Android 5.1 Lollipop, Android 6.0 Marshmallow, Android 7.0 Nougat, Android 7.1 Nougat, Android 8.0 Oreo, Android 9.0 Pie
  • Android 10.0, 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
  • iOS 10.0, iOS 11.0, iOS 12.0, iOS 13.0, iOS 14.0, iOS 9.0
  • iOS 10.0, iOS 11.0, iOS 12.0, iOS 13.0, iOS 14.0, iOS 9.0
  • iOS 12.0, iOS 13.0, iOS 14.0
Required iPhone model
  • iPhone 6 or later
  • iPhone 6 or later
  • iPhone 5 or later
  • iPhone 5 or later
  • iPhone 6 or later
Operating system
  • Brand-specific
  • Brand-specific
  • Samsung Tizen
  • Samsung Tizen
  • Brand-specific
Guaranteed support with updates
  • Unknown
  • Unknown
  • Unknown
  • Unknown
  • Unknown
App installation possible
  • Yes
  • Yes
  • Yes
  • Yes
  • Yes
Compatible with apps
  • Spotify, Strava
  • Spotify, Strava
  • Mail, MyFitnessPal, Spotify
  • Mail, MyFitnessPal, Spotify
  • Spotify, Strava
Shows smartphone messages
  • Yes
  • Yes
  • Yes
  • Yes
  • Yes
Required Android version messages received
  • Android 7.0 or higher
  • Android 7.0 or higher
  • Android 5.0 or higher
  • Android 5.0 or higher
  • Android 7.0 or higher
Required iOS version messages received
  • iOS 12 or higher
  • iOS 12 or higher
  • iOS 9 or higher
  • iOS 9 or higher
  • iOS 12 or higher
Required Android version send messages
  • Android 7.0 or higher
  • Android 7.0 or higher
  • Android 5.0 or higher
  • Android 5.0 or higher
  • Android 7.0 or higher
Required iOS version send messages
  • Not possible with iOS
  • Not possible with iOS
  • Not possible with iOS
  • Not possible with iOS
  • Not possible with iOS
Smartphone notifications
  • Accept incoming call, Caller ID, Decline incoming call, Music controls, Notifications, Receive messages, Send messages
  • Accept incoming call, Caller ID, Decline incoming call, Music controls, Notifications, Receive messages, Send messages
  • Accept incoming call, Caller ID, Decline incoming call, Music controls, Notifications, Read messages, Receive messages, Send messages
  • Accept incoming call, Caller ID, Decline incoming call, Music controls, Notifications, Read messages, Receive messages, Send messages
  • Accept incoming call, Caller ID, Decline incoming call, Music controls, Notifications, Receive messages, Send messages
Notification
  • Notification on screen, Vibration
  • Notification on screen, Vibration
  • Light alarm, Notification on screen, Sound alarm, Vibration
  • Light alarm, Notification on screen, Sound alarm, Vibration
  • Notification on screen, Vibration
Bluetooth
  • Yes
  • Yes
  • Yes
  • Yes
  • Yes
Integrated WiFi
  • Yes
  • Yes
  • Yes
  • Yes
  • Yes
ANT+
  • No
  • No
  • No
  • No
  • No
NFC
  • Yes
  • Yes
  • Yes
  • Yes
  • Yes
Contactless payment
  • Yes
  • Yes
  • No
  • No
  • Yes
Contactless payment system
  • Fitbit Pay
  • Fitbit Pay
  • Fitbit Pay
Country contactless payment
  • Belgium, The Netherlands
  • Belgium, The Netherlands
  • Belgium, The Netherlands
Required Dutch bank account
  • ABN AMRO Maestro, ABN AMRO Mastercard, Bunq Maestro, Bunq Mastercard, ICS Mastercard, ICS Visa, Openbank Mastercard, Rabobank Maestro
  • ABN AMRO Maestro, ABN AMRO Mastercard, Bunq Maestro, Bunq Mastercard, ICS Mastercard, ICS Visa, Openbank Mastercard, Rabobank Maestro
  • ABN AMRO Maestro, ABN AMRO Mastercard, Bunq Maestro, Bunq Mastercard, ICS Mastercard, ICS Visa, Openbank Mastercard, Rabobank Maestro
Required Belgian bank account
  • BNP Paribas Fortis Maestro, BNP Paribas Fortis Visa, BNP Parisbas Fortis Mastercard, Fintro Maestro, Fintro Mastercard, Fintro Visa, Hello Bank! Visa, Hello bank! Maestro, KBC Maestro
  • BNP Paribas Fortis Maestro, BNP Paribas Fortis Visa, BNP Parisbas Fortis Mastercard, Fintro Maestro, Fintro Mastercard, Fintro Visa, Hello Bank! Visa, Hello bank! Maestro, KBC Maestro
  • BNP Paribas Fortis Maestro, BNP Paribas Fortis Visa, BNP Parisbas Fortis Mastercard, Fintro Maestro, Fintro Mastercard, Fintro Visa, Hello Bank! Visa, Hello bank! Maestro, KBC Maestro
Phone calls via watch possible
  • Yes
  • Yes
  • Yes
  • Yes
  • Yes
Required Android version calls
  • Android 7.0 or higher
  • Android 7.0 or higher
  • Android 5.0 or higher
  • Android 5.0 or higher
  • Android 7.0 or higher
Required iOS version calls
  • Not possible with iOS
  • Not possible with iOS
  • iOS 9 or higher
  • iOS 9 or higher
  • iOS 14 or higher
Call options
  • Answer calls
  • Answer calls
  • Answer calls, Call stored contacts, Independent calls
  • Answer calls, Call stored contacts, Independent calls
  • Answer calls
Camera operation
  • No
  • No
  • Yes
  • Yes
  • No
Independent music player
  • No
  • No
  • Yes
  • Yes
  • No
Voice control
  • Yes
  • Yes
  • Yes
  • Yes
  • Yes
Total storage capacity
  • 2,5 GB
  • 2,5 GB
  • 2,5 GB

Heart rate measurement
  • Yes
  • Yes
  • Yes
  • Yes
  • Yes
Heart rate sensor
  • Integrated pulse sensor
  • Integrated pulse sensor
  • Integrated pulse sensor
  • Integrated pulse sensor
  • Integrated pulse sensor
Heart rate measurement moment
  • Continuously
  • Continuously
  • Continuously, Incidental, Op aanvraag
  • Continuously, Incidental, Op aanvraag
  • Continuously
Heart rate zones
  • Yes
  • Yes
  • Yes
  • Yes
  • Yes