ZeRound2 HR Premium Size, Dimensions & Wrist Fit
The ZeRound2 HR Premium looks in proportion on wrists of 16 cm (6.3 in) and up round, and fills the wrist at 17–19 cm (lug-to-lug estimated at ≈51.5mm; MyKronoz does not publish it).
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Does the ZeRound2 HR Premium fit your wrist?
| Wrist round (mm left each side) | 45mm≈51.5mm lug to lug, est. |
|---|---|
| 14 cm / 5.5 in | Overhangs (3.2mm over) |
| 15 cm / 5.9 in | Overhangs (1.6mm over) |
| 16 cm / 6.3 in | Bold (0.1mm) |
| 17 cm / 6.7 in | Sweet spot (1.7mm) |
| 18 cm / 7.1 in | Sweet spot (3.3mm) |
| 19 cm / 7.5 in | Balanced (4.9mm) |
| 20 cm / 7.9 in | Balanced (6.5mm) |
The ZeRound2 HR Premium in short
- At 12mm, the joint thinnest of the 6 MyKronoz watches 44–46mm across.
- Rated for 3 days of use per charge.
- Water resistant; no depth rating published.
- 53g on the wrist.
- 1.22 inches LCD display.
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Size, fit and battery side by side, against any smartwatch we list.
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ZeRound2 HR Premium battery life
Published runtime
- Battery life3 days
Charges in 2 hours
Where it ranks among MyKronoz watches
- Everyday use3 days#11 of 11
- Capacity260 mAh#5 of 11
Settings to change and the 24-hour idle test are on the battery check.
2D Dimension Schematics
- MyKronoz ZeRound2 HR Premium 45mm × ≈51.5mm (est.) · 12mm thick
3D preview
MyKronoz ZeRound2 HR Premium on a wrist
What size band does the ZeRound2 HR Premium take?
Lug width
22mm
Alternatives to the ZeRound2 HR Premium
ZeRound2 HR Premium specifications
- Battery life
- 3 days
- Display
- 1.22 inches
- Resolution
- 204 x 240 px
- Water rating
- Water resistant
- Strap
- 22 mm
- Storage
- 0.26GB
- Charging
- 2 hours
Show all specificationsMyKronoz's published specification, for reference · checked September 2026
Design
- width
- 45
- height
- 45
- volume
- 24.3 cm³
- weight
- 53 g
- thickness
- 12
- resolution
- 204 x 240 px
- screen size
- 1.22 inches
- Display type
- LCD
- Has a display
- Yes
- pixel density
- 258 ppi
- width of band
- 22 mm
- water resistance
- Water resistant
- Always-On Display
- No
- has a touch screen
- Yes
- Watch band is replaceable
- Yes
- Has sapphire glass display
- No
- maximum operating temperature
- 60 °C
- has branded damage-resistant glass
- No
- lowest potential operating temperature
- -10 °C
Battery
- charge time
- 2 hours
- battery life
- 3 days
- battery power
- 260 mAh
- has wireless charging
- Yes
- 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
- No
Features
- RAM
- 64MB
- Has a stopwatch
- No
- Has smart alarm
- No
- warranty period
- 1 years
- Has call control
- Yes
- Has silent alarm
- No
- internal storage
- 0.26GB
- Has notifications
- Yes
- Locates your phone
- Yes
- has a front camera
- No
- has voice commands
- Yes
- Acquires GPS faster
- No
- Has vibrating alerts
- Yes
- number of microphones
- 1
- Can be used to answer calls
- Yes
- Has a built-in camera remote control function
- Yes
Connectivity
- has NFC
- No
- supports ANT+
- No
- supports Wi-Fi
- No
- Bluetooth version
- 4
- has a cellular module
- Yes
- Is compatible with iOS
- Yes
- Is compatible with Android
- Yes
Miscellaneous
- 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
- Has achievements
- Yes
- Has goal setting
- Yes
- Has weight tracking
- No
- Tracks water intake
- No
- Has inactivity alerts
- No
- Provides activity reports
- Yes
- Counts how many calories you've burned
- Yes
Activity tracking
- Measures pace
- No
- Tracks distance
- Yes
- 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
- Yes
- Tracks calorie intake
- No
- Provides sleep reports
- Yes
- Detects activities automatically
- No
- Has a stroke counter for swimming
- No
