  |  |  | |
| Available colors | |||
| Editiorial reviews | |||
| User rating |
| Screen resolution | 64 x 128 | N/A | 128 x 80 |
|---|---|---|---|
| Display type | OLED | OLED | OLED |
| Display | N/A | yes | yes |
| Screen size | N/A | 0.42 in | 0.78 in |
| Weight | 0.76 oz | 0.25 oz | 0.71 oz |
|---|
| Colour of product | Black | Black | Black |
|---|
| Accelerometer | yes | yes | yes |
|---|---|---|---|
| Heart rate monitor | yes | yes | yes |
| Calorie counter | yes | yes | yes |
| Distance meter | yes | yes | yes |
| Pedometer | yes | yes | yes |
| Sleep reading | yes | yes | yes |
| Stopwatch | yes | N/A | N/A |
| Touchscreen | yes | yes | yes |
| Water resistant | N/A | yes | yes |
| Fully Waterproof | N/A | no | N/A |
| IP code (level of dust/water resistance) | N/A | IP67 | N/A |
| Caller ID | N/A | yes | N/A |
| Support for HRM chest strap | N/A | yes | N/A |
| Vibration alarm | N/A | yes | yes |
| Watch | N/A | yes | yes |
| Bluetooth | yes | yes | yes |
|---|---|---|---|
| Bluetooth version | N/A | 4.0 | 4.2 BLE |
| GPS | N/A | no | no |
| NFC | N/A | no | no |
| Battery life | 5.0 day | 20.0 day | 20.0 day |
|---|---|---|---|
| Battery capacity | N/A | 70.0 mAh | 110.0 mAh |
| Battery type | N/A | Lithium Polymer | Lithium-Ion |
| Charging via USB | N/A | yes | yes |
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