R8 Size, Dimensions & Wrist Fit
The R8 looks in proportion on wrists of 14.5–21 cm (5.7–8.3 in) round, and fills the wrist at 15.5–17 cm (lug-to-lug estimated at ≈47mm; Blackview does not publish it).
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Does the R8 fit your wrist?
| Wrist round (mm left each side) | 41mm≈47mm lug to lug, est. |
|---|---|
| 14 cm / 5.5 in | Overhangs (0.9mm over) |
| 15 cm / 5.9 in | Bold (0.7mm) |
| 16 cm / 6.3 in | Sweet spot (2.3mm) |
| 17 cm / 6.7 in | Sweet spot (3.9mm) |
| 18 cm / 7.1 in | Balanced (5.5mm) |
| 19 cm / 7.5 in | Balanced (7.1mm) |
| 20 cm / 7.9 in | Balanced (8.8mm) |
The R8 in short
- Rated for 10 days of use per charge.
- 23g on the wrist.
- 1.09 inches LCD display.
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R8 battery life
Published runtime
- Battery life10 days
Charges in 2.5 hours
Where it ranks among Blackview watches
- Everyday use10 days#5 of 8
- Capacity190 mAh#8 of 8
Settings to change and the 24-hour idle test are on the battery check.
2D Dimension Schematics
- Blackview R8 41mm × ≈47mm (est.) · 12mm thick
3D preview
Blackview R8 on a wrist
Alternatives to the R8
R8 specifications
- Battery life
- 10 days
- Display
- 1.09 inches
- Resolution
- 240 x 240 px
- Water rating
- Sweat resistant
- Charging
- 2.5 hours
Show all specificationsBlackview's published specification, for reference · checked September 2026
Design
- width
- 41
- height
- 41
- volume
- 20.17 cm³
- weight
- 23 g
- thickness
- 12
- resolution
- 240 x 240 px
- screen size
- 1.09 inches
- Display type
- LCD
- Has a display
- Yes
- pixel density
- 311 ppi
- water resistance
- Sweat resistant
- Always-On Display
- No
- has a touch screen
- Yes
- is designed for kids
- No
- Watch band is replaceable
- Yes
- Has sapphire glass display
- No
- has branded damage-resistant glass
- No
Battery
- charge time
- 2.5 hours
- battery life
- 10 days
- battery power
- 190 mAh
- has wireless charging
- No
- has a removable battery
- No
- Has a solar power battery
- No
- has a rechargeable battery
- Yes
Sensors
- has GPS
- No
- has a compass
- No
- Has a barometer
- No
- has a gyroscope
- No
- Has a cadence sensor
- No
- has an accelerometer
- Yes
- Monitors perspiration
- No
- Has a heart rate monitor
- Yes
- Has a temperature sensor
- No
- Monitors blood oxygenation levels
- Yes
Features
- Has a stopwatch
- Yes
- Has smart alarm
- No
- warranty period
- 1 years
- Has call control
- Yes
- Has silent alarm
- Yes
- Has notifications
- Yes
- Has ECG technology
- No
- Locates your phone
- No
- has fall detection
- No
- has voice commands
- No
- Acquires GPS faster
- No
- Has vibrating alerts
- Yes
- Can be used to answer calls
- No
- has irregular heart rate warnings
- No
- Has a built-in camera remote control function
- No
Connectivity
- has NFC
- No
- supports ANT+
- No
- supports Wi-Fi
- No
- supports Galileo
- No
- Bluetooth version
- 5
- has a cellular module
- No
- Is compatible with iOS
- No
- Is compatible with Android
- Yes
Miscellaneous
- Has passcode
- No
- Is compatible with Windows
- No
- Is compatible with Mac OS X
- No
- has an external memory slot
- No
- has a battery level indicator
- Yes
- has a socket for a 3.5 mm audio jack
- No
App & Software
- Ad-free
- Yes
- Free app
- Yes
- Has coaching
- No
- Supports routes
- No
- Has achievements
- Yes
- Has goal setting
- Yes
- Has exercise diary
- Yes
- Can be personalised
- No
- Has weight tracking
- Yes
- Tracks water intake
- Yes
- Has inactivity alerts
- Yes
- Has temperature tracking
- No
- Doesn’t require account
- No
- Provides activity reports
- Yes
- Counts how many calories you've burned
- Yes
Activity tracking
- Measures pace
- No
- Tracks distance
- No
- Tracks elevation
- No
- Designed for golf
- No
- Tracks your sleep
- Yes
- Tracks steps taken
- Yes
- Designed for diving
- No
- Has a route tracker
- No
- Has exercise tagging
- Yes
- Has multi-sport mode
- No
- Tracks calorie intake
- Yes
- Provides sleep reports
- Yes
- Detects activities automatically
- Yes
- Has a stroke counter for swimming
- No
