  |  |  |  | |
| Editiorial reviews | ||||
| User rating |
| Screen size | 1.2 in | 1.4 in | 1.63 in | 1.3 in |
|---|---|---|---|---|
| Display technology | OLED | N/A | OLED | OLED |
| Screen resolution | 390 x 390 px | 400 x 400 px | 320 x 320 px | 128 x 128 px |
| Type of glass | Gorilla Glass | N/A | Gorilla Glass | N/A |
| Type of screen | Colour screen | N/A | Colour screen | N/A |
| Multi touch | N/A | N/A | N/A | yes |
| Case diameter | 1.77 in | 1.77 in | 1.45 in | 1.97 in |
|---|---|---|---|---|
| Case height | 1.93 in | N/A | 2.3 in | N/A |
| Case thickness | 0.5 in | 0.51 in | 0.39 in | 0.31 in |
| Weight | 1.41 oz | N/A | 2.4 oz | 1.45 oz |
| Watch case material | Plastic/Synthetic | N/A | Stainless steel | Aluminum |
| Wrist band material | Rubber | N/A | Rubber |
|
| Colour of bracelet |
| N/A |
| N/A |
| Water resistance | yes | yes | yes | yes |
| Fully waterproof | yes | N/A | yes | N/A |
| IP code (level of dust/water resistance) | IP68 | IP67 | IP67 | N/A |
| Anti scratch lens | N/A | yes | N/A | N/A |
| Dust resistant | N/A | yes | N/A | N/A |
| Wrist band width | N/A | N/A | 0.87 in | 0.79 in |
| Replaceable wrist bands | N/A | N/A | N/A | yes |
| 3G (UMTS) | no | N/A | N/A | N/A |
|---|---|---|---|---|
| 4G (LTE) | no | N/A | no | N/A |
| Bluetooth | yes | yes | yes | yes |
| Bluetooth version | 4.1 | 4.1 | 4.0 | 3.0 |
| Wi-Fi | yes | N/A | no | N/A |
| Wireless networking standard |
| N/A | N/A | N/A |
| NFC | yes | N/A | no | N/A |
| USB | yes | N/A | yes | N/A |
| Built-in navigation system | yes | yes | N/A | N/A |
| GPS | yes | N/A | N/A | yes |
| GLONASS | yes | N/A | N/A | N/A |
| Charging connection | N/A | N/A | N/A | Proprietary USB Cable |
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