  |  |  | |
| Editiorial reviews | |||
| User rating |
| Screen size | 1.34 in | 0.95 in | 1.28 in |
|---|---|---|---|
| Display technology | LCD | OLED | N/A |
| Screen resolution | 300 x 300 px | 144 x 168 px | 176 x 176 px |
| Type of glass | Gorilla Glass | Gorilla Glass | Gorilla Glass |
| Heart rate monitor | yes | yes | yes |
|---|---|---|---|
| Gyroscope | yes | yes | yes |
| Microphone | N/A | yes | N/A |
| Phone Functionality | N/A | yes | N/A |
| Barometer | N/A | N/A | yes |
| Compass | N/A | N/A | yes |
| Case diameter | 0.94 in | 1.57 in | 1.38 in |
|---|---|---|---|
| Case height | 0.94 in | 1.18 in | 0.0 in |
| Weight | 1.31 oz | 1.41 oz | 1.09 oz |
| Watch case material |
| Plastic/Synthetic | Plastic/Synthetic |
| Wrist band material | Silicone | Silicone | Silicone |
| Colour of bracelet |
|
|
|
| Case thickness | N/A | 0.53 in | 0.31 in |
| IP code (level of dust/water resistance) | N/A | IP67 | IP68 |
| Bluetooth | yes | no | yes |
|---|---|---|---|
| Bluetooth version | 4.0 | 4.1 | 4.0 |
| Wi-Fi | yes | yes | N/A |
| Built-in navigation system | no | yes | yes |
| 3G (UMTS) | N/A | yes | N/A |
| USB | N/A | yes | yes |
| GPS | N/A | yes | N/A |
| Battery technology | Li-polymer | Li-Ion | Li-polymer |
|---|---|---|---|
| Battery life (running) | 96.0 h | 144.0 h | 720.0 h |
| Battery capacity | N/A | 130.0 mAh | 190.0 mAh |
| Average battery life (standby) | N/A | N/A | 1080.0 h |
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