  |  |  | |
| Available colors | |||
| Editiorial reviews | |||
| User rating |
| Bracelet | yes | yes | yes |
|---|---|---|---|
| Bracelet Thickness | 0.35 in | 0.41 in | 0.47 in |
| Bracelet Width | 0.55 in | 0.62 in | 0.7 in |
| Clips | no | no | N/A |
| Display | no | yes | yes |
|---|---|---|---|
| Screen size | N/A | 0.42 in | 0.78 in |
| Display type | N/A | OLED | OLED |
| Screen resolution | N/A | N/A | 128 x 80 |
| Weight | 0.18 oz | 0.25 oz | 0.71 oz |
|---|
| Colour of product | Black | Black | Black |
|---|
| Water resistant | yes | yes | yes |
|---|---|---|---|
| Fully Waterproof | no | no | N/A |
| IP code (level of dust/water resistance) | IP67 | IP67 | N/A |
| Accelerometer | yes | yes | yes |
| Calorie counter | yes | yes | yes |
| Pedometer | yes | yes | yes |
| Sleep reading | yes | yes | yes |
| Status indicator (LED-diod) | yes | N/A | N/A |
| Touchscreen | no | yes | yes |
| Vibration alarm | yes | yes | yes |
| Watch | yes | yes | yes |
| Heart rate monitor | N/A | yes | yes |
| Caller ID | N/A | yes | N/A |
| Distance meter | N/A | yes | yes |
| Support for HRM chest strap | N/A | yes | N/A |
| Bluetooth | yes | yes | yes |
|---|---|---|---|
| Bluetooth version | 4.0 | 4.0 | 4.2 BLE |
| GPS | no | no | no |
| NFC | no | no | no |
| Battery capacity | 41.0 mAh | 70.0 mAh | 110.0 mAh |
|---|---|---|---|
| Battery life | 30.0 day | 20.0 day | 20.0 day |
| Battery type | Lithium Polymer | Lithium Polymer | Lithium-Ion |
| Charging via USB | yes | yes | yes |
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