  |  |  | |
| Editiorial reviews | |||
| User rating |
| Screen size | 1.39 in | 1.34 in | 1.6 in |
|---|---|---|---|
| Display technology | OLED | LCD | N/A |
| Screen resolution | 400 x 400 px | 300 x 300 px | 320 x 320 px |
| Type of glass | N/A | Gorilla Glass | N/A |
| Accelerometer | yes | N/A | yes |
|---|---|---|---|
| Gyroscope | yes | yes | yes |
| Heart rate monitor | N/A | yes | N/A |
| Ambient Light Sensor | N/A | N/A | yes |
| Compass | N/A | N/A | yes |
| Case thickness | 0.35 in | N/A | 0.39 in |
|---|---|---|---|
| Replaceable wrist bands | yes | N/A | yes |
| Watch case material | Stainless steel |
| Stainless steel |
| Wrist band material |
| Silicone |
|
| Fully waterproof | yes | N/A | yes |
| Dust resistant | yes | N/A | yes |
| Case diameter | N/A | 0.94 in | 1.97 in |
| Case height | N/A | 0.94 in | N/A |
| Weight | N/A | 1.31 oz | 1.59 oz |
| Colour of bracelet | N/A |
| N/A |
| Anti scratch lens | N/A | N/A | yes |
| Water resistance | N/A | N/A | yes |
| Bluetooth | yes | yes | yes |
|---|---|---|---|
| Bluetooth version | 4.0 | 4.0 | 4.0 |
| Wi-Fi | yes | yes | yes |
| NFC | yes | N/A | yes |
| Built-in navigation system | N/A | no | N/A |
| Charging connection | N/A | N/A | microUSB |
| Headphone connection | N/A | N/A | Bluetooth |
| GPS | N/A | N/A | yes |
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