  |  |  |  |  | |
| Available colors |
| Display | yes | N/A | yes | yes | yes |
|---|---|---|---|---|---|
| Display type | OLED | PMOLED | PMOLED | OLED | OLED |
| Screen size | N/A | N/A | N/A | 0.42 in | 0.78 in |
| Screen resolution | N/A | N/A | N/A | N/A | 128 x 80 |
| Weight | 1.23 oz | 0.3 oz | 3.52 oz | 0.25 oz | 0.71 oz |
|---|
| Colour of product |
|
|
| Black | Black |
|---|
| Water resistant | yes | N/A | yes | yes | yes |
|---|---|---|---|---|---|
| Fully Waterproof | no | N/A | yes | no | N/A |
| IP code (level of dust/water resistance) | IP34 | N/A | N/A | IP67 | N/A |
| Accelerometer | yes | yes | yes | yes | yes |
| Altimeter | yes | yes | N/A | N/A | N/A |
| Heart rate monitor | yes | yes | yes | yes | yes |
| Caller ID | yes | N/A | N/A | yes | N/A |
| Calorie counter | yes | yes | no | yes | yes |
| Distance meter | yes | yes | no | yes | yes |
| Pedometer | yes | yes | no | yes | yes |
| Sleep reading | yes | yes | no | yes | yes |
| Stopwatch | yes | yes | N/A | N/A | N/A |
| Touchscreen | yes | yes | no | yes | yes |
| Vibration alarm | yes | N/A | N/A | yes | yes |
| Watch | yes | N/A | yes | yes | yes |
| Speedometer | N/A | N/A | yes | N/A | N/A |
| Support for HRM chest strap | N/A | N/A | N/A | yes | N/A |
| Bluetooth | yes | yes | yes | yes | yes |
|---|---|---|---|---|---|
| Bluetooth version | 4.0 LE | 4.2 | N/A | 4.0 | 4.2 BLE |
| GPS | no | yes | yes | no | no |
| NFC | no | N/A | N/A | no | no |
| Battery life | 5.0 day | 10.0 day | 21.0 day | 20.0 day | 20.0 day |
|---|---|---|---|---|---|
| Battery type | Lithium Polymer | Lithium Polymer | N/A | Lithium Polymer | Lithium-Ion |
| Charging via USB | yes | N/A | N/A | yes | yes |
| Battery capacity | N/A | N/A | 100.0 mAh | 70.0 mAh | 110.0 mAh |
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