  |  |  |  | |
| Available colors | ||||
| Editiorial reviews | ||||
| User rating |
| Screen size | 1.56 in | N/A | N/A | 0.78 in |
|---|---|---|---|---|
| Display type | OLED | OLED | LED | OLED |
| Display | N/A | yes | no | yes |
| Screen resolution | N/A | N/A | N/A | 128 x 80 |
| Weight | 1.06 oz | 0.49 oz | 0.83 oz | 0.71 oz |
|---|
| Colour of product |
|
|
| Black |
|---|
| Accelerometer | yes | yes | yes | yes |
|---|---|---|---|---|
| Altimeter | yes | yes | N/A | N/A |
| Heart rate monitor | yes | yes | N/A | 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 | yes | no | no | yes |
| Vibration alarm | yes | yes | yes | yes |
| Water resistant | N/A | yes | yes | yes |
| Fully Waterproof | N/A | no | yes | N/A |
| Caller ID | N/A | yes | N/A | N/A |
| Status indicator (LED-diod) | N/A | yes | yes | N/A |
| Stopwatch | N/A | yes | N/A | N/A |
| Support for HRM chest strap | N/A | yes | N/A | N/A |
| Watch | N/A | yes | yes | yes |
| Bluetooth | yes | yes | yes | yes |
|---|---|---|---|---|
| Bluetooth version | 4.0 | 4.0 | 4.0 | 4.2 BLE |
| GPS | yes | no | no | no |
| NFC | yes | no | no | no |
| Battery life | 7.0 day | 5.0 day | 5.0 day | 20.0 day |
|---|---|---|---|---|
| Battery type | Lithium Polymer | Lithium Polymer | Lithium Polymer | Lithium-Ion |
| Charging via USB | N/A | yes | yes | yes |
| Battery capacity | N/A | N/A | N/A | 110.0 mAh |
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