  |  |  | |
| Editiorial reviews | |||
| User rating |
| Screen size | 1.54 in | 1.26 in | N/A |
|---|---|---|---|
| Display technology | LCD | LCD | LCD |
| Screen resolution | 240 x 240 px | 144 x 168 px | 320 x 300 px |
| Type of glass | N/A | Gorilla Glass | Sapphire glass |
| Type of screen | N/A | Monochrome | N/A |
| Built-in camera | yes | no | N/A |
|---|---|---|---|
| Accelerometer | yes | N/A | N/A |
| Heart rate monitor | yes | yes | yes |
| Microphone | yes | yes | N/A |
| Gyroscope | yes | yes | N/A |
| Pedometer | yes | N/A | N/A |
| Barometer | N/A | N/A | yes |
| Case diameter | 1.69 in | 1.56 in | 1.97 in |
|---|---|---|---|
| Case height | 0.0 in | 1.19 in | 1.97 in |
| Case thickness | 0.43 in | 0.44 in | 0.66 in |
| Weight | 1.53 oz | 1.12 oz | 2.86 oz |
| Replaceable wrist bands | yes | N/A | N/A |
| Watch case material |
| Plastic/Synthetic | Stainless steel |
| Wrist band material |
| Silicone | Silicone |
| Colour of bracelet |
|
|
|
| Anti scratch lens | yes | N/A | N/A |
| Water resistance | N/A | yes | N/A |
| Fully waterproof | N/A | no | N/A |
| Bluetooth | yes | yes | yes |
|---|---|---|---|
| Bluetooth version | 3.0 | 4.0 | N/A |
| Wi-Fi | yes | no | N/A |
| USB | yes | no | yes |
| Charging connection | Proprietary USB Cable | N/A | N/A |
| Built-in navigation system | no | no | yes |
| 3G (UMTS) | N/A | no | N/A |
| 4G (LTE) | N/A | no | N/A |
| NFC | N/A | no | N/A |
| Battery technology | Li-Ion | N/A | Li-Ion |
|---|---|---|---|
| Battery capacity | 400.0 mAh | N/A | N/A |
| Average battery life (standby) | 240.0 h | N/A | 336.0 h |
| Battery life (running) | 24.0 h | 154.0 h | 120.0 h |
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