  |  |  | |
| Editiorial reviews | |||
| User rating |
| Screen size | 1.4 in | 1.22 in | 1.97 in |
|---|---|---|---|
| Display technology | OLED | LCD | LED |
| Screen resolution | 400 x 400 px | 240 x 204 px | 128 x 128 px |
| Type of glass | Sapphire glass | N/A | N/A |
| Touchscreen | N/A | yes | N/A |
| Type of screen | N/A | Colour screen | N/A |
| Accelerometer | yes | N/A | yes |
|---|---|---|---|
| Barometer | yes | N/A | N/A |
| Heart rate monitor | yes | yes | N/A |
| Microphone | yes | yes | N/A |
| Gyroscope | yes | yes | N/A |
| Pedometer | yes | yes | yes |
| Altimeter | N/A | N/A | yes |
| Compass | N/A | N/A | yes |
| Bluetooth | yes | yes | yes |
|---|---|---|---|
| Bluetooth version | 4.1 | 4.0 | 4.0 |
| Wi-Fi | yes | N/A | N/A |
| USB | yes | yes | N/A |
| Charging connection | Proprietary USB Cable | N/A | Proprietary USB Cable |
| GPS | N/A | N/A | yes |
| Battery technology | Li-Ion | Li-Ion | Li-Ion |
|---|---|---|---|
| Battery capacity | 300.0 mAh | 260.0 mAh | N/A |
| Average battery life (standby) | N/A | 72.0 h | N/A |
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