  |  |  |  | |
| Available colors | ||||
| Editiorial reviews | ||||
| User rating |
| Display | yes | yes | yes | N/A |
|---|---|---|---|---|
| Screen resolution | 128 x 32 | N/A | 128 x 80 | 120 x 240 |
| Display type | OLED | OLED | OLED | AMOLED |
| Screen size | N/A | 0.42 in | 0.78 in | 0.95 in |
| Colour of product |
| Black | Black | Black |
|---|
| Water resistant | yes | yes | yes | N/A |
|---|---|---|---|---|
| Fully Waterproof | no | no | N/A | N/A |
| IP code (level of dust/water resistance) | IP54 | IP67 | N/A | N/A |
| Accelerometer | yes | yes | yes | yes |
| 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 | yes | yes | yes |
| Vibration alarm | yes | yes | yes | yes |
| Watch | yes | yes | yes | N/A |
| Heart rate monitor | N/A | yes | yes | yes |
| Caller ID | N/A | yes | N/A | yes |
| Support for HRM chest strap | N/A | yes | N/A | N/A |
| Bluetooth | yes | yes | yes | yes |
|---|---|---|---|---|
| Bluetooth version | 4.0 | 4.0 | 4.2 BLE | 5.0 |
| GPS | no | no | no | yes |
| NFC | no | no | no | N/A |
| Battery life | 7.0 day | 20.0 day | 20.0 day | 20.0 day |
|---|---|---|---|---|
| Battery type | Lithium Polymer | Lithium Polymer | Lithium-Ion | Lithium Polymer |
| Charging via USB | yes | yes | yes | N/A |
| Battery capacity | N/A | 70.0 mAh | 110.0 mAh | 135.0 mAh |
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