  |  |  | |
| Editiorial reviews | |||
| User rating |
| Screen size | 1.63 in | 1.63 in | 1.97 in |
|---|---|---|---|
| Display technology | OLED | OLED | LED |
| Screen resolution | 320 x 320 px | 320 x 320 px | 128 x 128 px |
| Type of glass | Gorilla Glass | Gorilla Glass | N/A |
| Type of screen | Colour screen | Colour screen | N/A |
| Built-in camera | yes | no | N/A |
|---|---|---|---|
| Accelerometer | yes | yes | yes |
| Heart rate monitor | yes | yes | N/A |
| Microphone | yes | yes | N/A |
| Gyroscope | yes | yes | N/A |
| Altimeter | N/A | N/A | yes |
| Compass | N/A | N/A | yes |
| Pedometer | N/A | N/A | yes |
| Case diameter | 1.45 in | 1.49 in | 1.97 in |
|---|---|---|---|
| Case height | 2.3 in | 2.31 in | N/A |
| Case thickness | 0.39 in | 0.39 in | 0.59 in |
| Wrist band width | 0.87 in | N/A | N/A |
| Weight | 2.4 oz | 1.94 oz | 2.82 oz |
| Watch case material | Stainless steel |
| Polyamide |
| Wrist band material | Rubber | Rubber | Silicone |
| Colour of bracelet |
|
| N/A |
| Water resistance | yes | yes | yes |
| Fully waterproof | yes | N/A | yes |
| IP code (level of dust/water resistance) | IP67 | IP67 | N/A |
| Replaceable wrist bands | N/A | N/A | yes |
| Anti scratch lens | N/A | N/A | yes |
| Operating system |
|
|
|
|---|---|---|---|
| Smartphone remote features | N/A | Voice Control | 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 |
| Infrared (IR) | N/A | yes | N/A |
| Charging connection | N/A | N/A | Proprietary USB Cable |
| GPS | N/A | N/A | yes |
| Battery technology | Li-Ion | Li-Ion | Li-Ion |
|---|---|---|---|
| Battery capacity | 300.0 mAh | 300.0 mAh | N/A |
| Average battery life (standby) | 144.0 h | 144.0 h | N/A |
| Battery life (running) | 144.0 h | 48.0 h | N/A |
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