  |  |  |  |  | |
| Available colors |
| Screen size | 0.95 in | N/A | 0.42 in | 0.78 in | 0.95 in |
|---|---|---|---|---|---|
| Display type | AMOLED | PMOLED | OLED | OLED | AMOLED |
| Display | N/A | yes | yes | yes | N/A |
| Screen resolution | N/A | N/A | N/A | 128 x 80 | 120 x 240 |
| Weight | 0.71 oz | 3.52 oz | 0.25 oz | 0.71 oz | 0.78 oz |
|---|
| Colour of product |
|
| Black | Black | Black |
|---|
| Accelerometer | yes | yes | yes | yes | yes |
|---|---|---|---|---|---|
| Heart rate monitor | yes | yes | yes | yes | yes |
| Calorie counter | yes | no | yes | yes | yes |
| Distance meter | yes | no | yes | yes | yes |
| Sleep reading | yes | no | yes | yes | yes |
| Touchscreen | yes | no | yes | yes | yes |
| Water resistant | N/A | yes | yes | yes | N/A |
| Fully Waterproof | N/A | yes | no | N/A | N/A |
| Pedometer | N/A | no | yes | yes | yes |
| Speedometer | N/A | yes | N/A | N/A | N/A |
| Watch | N/A | yes | yes | yes | N/A |
| IP code (level of dust/water resistance) | N/A | N/A | IP67 | N/A | N/A |
| Caller ID | N/A | N/A | yes | N/A | yes |
| Support for HRM chest strap | N/A | N/A | yes | N/A | N/A |
| Vibration alarm | N/A | N/A | yes | yes | yes |
| Bluetooth | yes | yes | yes | yes | yes |
|---|---|---|---|---|---|
| Bluetooth version | 4.2 BLE | N/A | 4.0 | 4.2 BLE | 5.0 |
| GPS | N/A | yes | no | no | yes |
| NFC | N/A | N/A | no | no | N/A |
| Battery life | 17.0 day | 21.0 day | 20.0 day | 20.0 day | 20.0 day |
|---|---|---|---|---|---|
| Battery capacity | N/A | 100.0 mAh | 70.0 mAh | 110.0 mAh | 135.0 mAh |
| Battery type | N/A | N/A | Lithium Polymer | Lithium-Ion | Lithium Polymer |
| Charging via USB | N/A | N/A | yes | yes | N/A |
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