  |  |  |  | |
| Available colors | ||||
| Editiorial reviews | ||||
| User rating |
| Screen size | 0.5 in | N/A | 0.42 in | 0.78 in |
|---|---|---|---|---|
| Display type | PMOLED | OLED | OLED | OLED |
| Display | N/A | yes | yes | yes |
| Screen resolution | N/A | 128 x 32 | N/A | 128 x 80 |
| Colour of product |
|
| Black | Black |
|---|
| Calorie counter | yes | yes | yes | yes |
|---|---|---|---|---|
| Distance meter | yes | yes | yes | yes |
| Pedometer | yes | yes | yes | yes |
| Sleep reading | yes | yes | yes | yes |
| Touchscreen | no | no | yes | yes |
| Water resistant | N/A | yes | yes | yes |
| Fully Waterproof | N/A | no | no | N/A |
| IP code (level of dust/water resistance) | N/A | IP54 | IP67 | N/A |
| Accelerometer | N/A | yes | yes | yes |
| Vibration alarm | N/A | yes | yes | yes |
| Watch | N/A | yes | yes | yes |
| Heart rate monitor | N/A | N/A | yes | yes |
| Caller ID | N/A | N/A | yes | N/A |
| Support for HRM chest strap | N/A | N/A | yes | N/A |
| Bluetooth | yes | yes | yes | yes |
|---|---|---|---|---|
| GPS | no | no | no | no |
| Bluetooth version | N/A | 4.0 | 4.0 | 4.2 BLE |
| NFC | N/A | no | no | no |
| Battery capacity | 77.0 mAh | N/A | 70.0 mAh | 110.0 mAh |
|---|---|---|---|---|
| Battery life | 14.0 day | 7.0 day | 20.0 day | 20.0 day |
| Battery type | N/A | Lithium Polymer | Lithium Polymer | Lithium-Ion |
| Charging via USB | N/A | yes | yes | yes |
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