  |  |  |  | |
| Editiorial reviews | ||||
| User rating |
| Display technology | OLED | OLED | OLED | OLED |
|---|---|---|---|---|
| Screen resolution | 96 x 64 px | 320 x 320 px | 360 x 360 px | 360 x 360 px |
| Screen size | N/A | 1.63 in | 1.2 in | 1.2 in |
| Type of screen | N/A | Colour screen | Colour screen | N/A |
| Touchscreen | N/A | N/A | yes | yes |
| Type of glass | N/A | N/A | Gorilla Glass | N/A |
| Heart rate monitor | yes | N/A | yes | yes |
|---|---|---|---|---|
| Gyroscope | yes | yes | yes | yes |
| Built-in camera | N/A | yes | no | N/A |
| Microphone | N/A | yes | yes | N/A |
| Accelerometer | N/A | N/A | yes | yes |
| Ambient Light Sensor | N/A | N/A | yes | yes |
| Barometer | N/A | N/A | yes | N/A |
| Pedometer | N/A | N/A | yes | yes |
| Case diameter | 2.32 in | 1.45 in | 1.67 in | 1.54 in |
|---|---|---|---|---|
| Case height | 1.18 in | 2.23 in | 1.96 in | N/A |
| Case thickness | 0.35 in | 0.44 in | 0.45 in | 0.43 in |
| Weight | 1.45 oz | 2.6 oz | 1.66 oz | 1.48 oz |
| Watch case material | N/A | Stainless steel | Stainless steel |
|
| Wrist band material | N/A | Rubber |
| Silicone |
| Colour of bracelet | N/A | N/A |
| N/A |
| Water resistance | N/A | N/A | yes | N/A |
| Fully waterproof | N/A | N/A | yes | yes |
| Dust resistant | N/A | N/A | yes | yes |
| IP code (level of dust/water resistance) | N/A | N/A | IP68 | N/A |
| Bluetooth | yes | yes | yes | yes |
|---|---|---|---|---|
| Bluetooth version | 2.1 | 4.0 | 4.1 | 4.0 |
| USB | yes | yes | yes | N/A |
| 3G (UMTS) | N/A | no | no | N/A |
| 4G (LTE) | N/A | no | yes | N/A |
| Wi-Fi | N/A | no | yes | yes |
| NFC | N/A | yes | yes | yes |
| Built-in navigation system | N/A | no | no | N/A |
| Wireless networking standard | N/A | N/A |
| N/A |
| Charging connection | N/A | N/A | Wireless | Wireless |
| Headphone connection | N/A | N/A | Bluetooth | Bluetooth |
| Battery technology | Li-Ion | Li-Ion | Li-Ion | Li-Ion |
|---|---|---|---|---|
| Battery capacity | 200.0 mAh | 315.0 mAh | 250.0 mAh | 250.0 mAh |
| Average battery life (standby) | N/A | 150.0 h | 24.0 h | 48.0 h |
| Battery life (running) | N/A | 25.0 h | 24.0 h | N/A |
| Wireless charging | N/A | N/A | yes | N/A |
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