  |  |  | |
| Editiorial reviews | |||
| User rating |
| Screen size | 1.2 in | 1.4 in | N/A |
|---|---|---|---|
| Display technology | OLED | OLED | OLED |
| Screen resolution | 390 x 390 px | 400 x 400 px | 96 x 64 px |
| Type of glass | Gorilla Glass | Sapphire glass | N/A |
| Type of screen | Colour screen | N/A | N/A |
| Built-in camera | no | N/A | N/A |
|---|---|---|---|
| Barometer | yes | yes | N/A |
| Heart rate monitor | yes | yes | yes |
| Microphone | yes | yes | N/A |
| Compass | yes | N/A | N/A |
| Gyroscope | yes | yes | yes |
| Accelerometer | N/A | yes | N/A |
| Pedometer | N/A | yes | N/A |
| Case diameter | 1.77 in | 1.65 in | 2.32 in |
|---|---|---|---|
| Case height | 1.93 in | 0.0 in | 1.18 in |
| Case thickness | 0.5 in | 0.44 in | 0.35 in |
| Weight | 1.41 oz | N/A | 1.45 oz |
| Watch case material | Plastic/Synthetic | Stainless steel | N/A |
| Wrist band material | Rubber |
| N/A |
| Colour of bracelet |
| White | N/A |
| Water resistance | yes | N/A | N/A |
| Fully waterproof | yes | N/A | N/A |
| IP code (level of dust/water resistance) | IP68 | IP67 | N/A |
| Wrist band width | N/A | 0.71 in | N/A |
| Replaceable wrist bands | N/A | yes | N/A |
| Anti scratch lens | N/A | yes | N/A |
| 3G (UMTS) | no | N/A | N/A |
|---|---|---|---|
| 4G (LTE) | no | N/A | N/A |
| Bluetooth | yes | yes | yes |
| Bluetooth version | 4.1 | 4.1 | 2.1 |
| Wi-Fi | yes | yes | N/A |
| Wireless networking standard |
| N/A | N/A |
| NFC | yes | N/A | N/A |
| USB | yes | yes | yes |
| Built-in navigation system | yes | N/A | N/A |
| GPS | yes | N/A | N/A |
| GLONASS | yes | N/A | N/A |
| Charging connection | N/A | Proprietary USB Cable | N/A |
| Wireless charging | yes | N/A | N/A |
|---|---|---|---|
| Battery technology | Li-Ion | Li-Ion | Li-Ion |
| Battery capacity | 450.0 mAh | 300.0 mAh | 200.0 mAh |
| Average battery life (standby) | 600.0 h | 72.0 h | N/A |
| Battery life (running) | 48.0 h | N/A | N/A |
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