  |  |  | |
| Editiorial reviews | |||
| User rating |
| Screen size | 1.4 in | 1.63 in | 1.3 in |
|---|---|---|---|
| Display technology | OLED | OLED | OLED |
| Screen resolution | 400 x 400 px | 320 x 320 px | 128 x 128 px |
| Type of glass | Sapphire glass | Gorilla Glass | N/A |
| Type of screen | N/A | Colour screen | N/A |
| Multi touch | N/A | N/A | yes |
| Accelerometer | yes | yes | yes |
|---|---|---|---|
| Barometer | yes | N/A | N/A |
| Heart rate monitor | yes | yes | N/A |
| Microphone | yes | yes | N/A |
| Gyroscope | yes | yes | N/A |
| Pedometer | yes | N/A | N/A |
| Built-in camera | N/A | yes | N/A |
| Case diameter | 1.65 in | 1.45 in | 1.97 in |
|---|---|---|---|
| Case height | 0.0 in | 2.3 in | N/A |
| Case thickness | 0.44 in | 0.39 in | 0.31 in |
| Wrist band width | 0.71 in | 0.87 in | 0.79 in |
| Replaceable wrist bands | yes | N/A | yes |
| Watch case material | Stainless steel | Stainless steel | Aluminum |
| Wrist band material |
| Rubber |
|
| Anti scratch lens | yes | N/A | N/A |
| IP code (level of dust/water resistance) | IP67 | IP67 | N/A |
| Weight | N/A | 2.4 oz | 1.45 oz |
| Colour of bracelet | N/A |
| N/A |
| Water resistance | N/A | yes | yes |
| Fully waterproof | N/A | yes | N/A |
| Operating system |
|
| Android 4.0+ |
|---|---|---|---|
| Smartphone remote features | Voice Control | N/A |
|
| Bluetooth | yes | yes | yes |
|---|---|---|---|
| Bluetooth version | 4.1 | 4.0 | 3.0 |
| Wi-Fi | yes | no | N/A |
| USB | yes | yes | N/A |
| Charging connection | Proprietary USB Cable | N/A | Proprietary USB Cable |
| 4G (LTE) | N/A | no | N/A |
| NFC | N/A | no | N/A |
| GPS | N/A | N/A | yes |
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