  |  |  | |
| Editiorial reviews | |||
| User rating |
| Screen size | 1.3 in | 1.63 in | 1.84 in |
|---|---|---|---|
| Display technology | LCD | OLED | OLED |
| Screen resolution | 240 x 180 px | 320 x 320 px | N/A |
| Type of glass | Gorilla Glass | Gorilla Glass | N/A |
| Type of screen | Colour screen | Colour screen | Colour screen |
| Touchscreen | N/A | N/A | yes |
| Built-in camera | no | no | N/A |
|---|---|---|---|
| Accelerometer | yes | yes | yes |
| Altimeter | yes | N/A | N/A |
| Ambient Light Sensor | yes | N/A | N/A |
| Barometer | yes | N/A | N/A |
| Heart rate monitor | yes | yes | yes |
| Compass | yes | N/A | N/A |
| Gyroscope | yes | yes | N/A |
| Microphone | N/A | yes | N/A |
| Pedometer | N/A | N/A | yes |
| Sleep monitor | N/A | N/A | yes |
| Case diameter | 1.58 in | 1.49 in | N/A |
|---|---|---|---|
| Case height | 1.65 in | 2.31 in | 2.26 in |
| Case thickness | 0.44 in | 0.39 in | 0.47 in |
| Weight | 1.55 oz | 1.94 oz | 0.95 oz |
| Replaceable wrist bands | yes | N/A | N/A |
| Watch case material |
|
| N/A |
| Wrist band material |
| Rubber | N/A |
| Colour of bracelet |
|
| N/A |
| Water resistance | yes | yes | N/A |
| Fully waterproof | no | N/A | N/A |
| IP code (level of dust/water resistance) | N/A | IP67 | N/A |
| 3G (UMTS) | no | N/A | N/A |
|---|---|---|---|
| 4G (LTE) | no | no | N/A |
| Bluetooth | yes | yes | yes |
| Bluetooth version | 4.0 | 4.0 | 4.0 |
| Wi-Fi | no | no | N/A |
| NFC | no | no | N/A |
| USB | yes | yes | N/A |
| Built-in navigation system | no | N/A | N/A |
| GPS | yes | N/A | N/A |
| Infrared (IR) | N/A | yes | N/A |
| Battery technology | Li-polymer | Li-Ion | N/A |
|---|---|---|---|
| Battery capacity | 167.0 mAh | 300.0 mAh | 210.0 mAh |
| Average battery life (standby) | 120.0 h | 144.0 h | 96.0 h |
| Battery life (running) | 120.0 h | 48.0 h | N/A |
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