  |  |  |  |  |
| Touchscreen | yes | yes | N/A | N/A | N/A |
|---|---|---|---|---|---|
| Screen size | 1.22 in | 1.65 in | 1.63 in | 1.3 in | 1.2 in |
| Display technology | LCD | N/A | OLED | OLED | OLED |
| Screen resolution | 240 x 204 px | 360 x 360 px | 320 x 320 px | 360 x 360 px | 360 x 360 px |
| Type of screen | Colour screen | N/A | Colour screen | Colour screen | N/A |
| Multi touch | N/A | yes | N/A | N/A | N/A |
| Type of glass | N/A | N/A | Gorilla Glass | Gorilla Glass | Gorilla Glass |
| Heart rate monitor | yes | yes | yes | yes | yes |
|---|---|---|---|---|---|
| Microphone | yes | N/A | yes | yes | yes |
| Gyroscope | yes | yes | yes | yes | yes |
| Pedometer | yes | N/A | N/A | N/A | N/A |
| Accelerometer | N/A | yes | yes | N/A | N/A |
| Phone Functionality | N/A | yes | yes | yes | yes |
| Magnetometer | N/A | yes | N/A | N/A | N/A |
| Built-in camera | N/A | N/A | no | no | N/A |
| Altimeter | N/A | N/A | yes | N/A | N/A |
| Barometer | N/A | N/A | yes | yes | yes |
| Compass | N/A | N/A | yes | yes | N/A |
| Bluetooth | yes | yes | yes | yes | yes |
|---|---|---|---|---|---|
| Bluetooth version | 4.0 | 4.0 | 4.0 | 4.2 | 4.2 |
| USB | yes | N/A | yes | yes | yes |
| Wi-Fi | N/A | yes | yes | yes | yes |
| GPS | N/A | yes | yes | yes | N/A |
| 3G (UMTS) | N/A | N/A | no | yes | N/A |
| 4G (LTE) | N/A | N/A | yes | no | yes |
| Wireless networking standard | N/A | N/A |
|
| N/A |
| NFC | N/A | N/A | yes | yes | yes |
| Charging connection | N/A | N/A | Wireless | N/A | N/A |
| Headphone connection | N/A | N/A | Bluetooth | N/A | N/A |
| Built-in navigation system | N/A | N/A | yes | yes | yes |
| GLONASS | N/A | N/A | yes | yes | N/A |
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