  |  |  |  |  |
| Screen size | 1.34 in | 1.3 in | N/A | 1.63 in | 1.2 in |
|---|---|---|---|---|---|
| Display technology | LCD | OLED | OLED | OLED | OLED |
| Screen resolution | 300 x 300 px | N/A | 96 x 64 px | 320 x 320 px | 360 x 360 px |
| Type of glass | Gorilla Glass | Mineral glass | N/A | N/A | Gorilla Glass |
| Multi touch | N/A | N/A | N/A | yes | N/A |
| Case diameter | 0.94 in | 1.73 in | 2.32 in | 2.64 in | 1.69 in |
|---|---|---|---|---|---|
| Case height | 0.94 in | 0.0 in | 1.18 in | N/A | 1.76 in |
| Weight | 1.31 oz | N/A | 1.45 oz | 2.57 oz | 2.36 oz |
| Watch case material |
| Stainless steel | N/A | Stainless steel |
|
| Wrist band material | Silicone |
| N/A | N/A | Silicone |
| Colour of bracelet |
|
| N/A | N/A |
|
| Case thickness | N/A | 0.55 in | 0.35 in | 0.43 in | 0.46 in |
| Wrist band width | N/A | N/A | N/A | 0.87 in | N/A |
| Water resistance | N/A | N/A | N/A | yes | N/A |
| IP code (level of dust/water resistance) | N/A | N/A | N/A | N/A | IP68 |
| Bluetooth | yes | yes | yes | yes | yes |
|---|---|---|---|---|---|
| Bluetooth version | 4.0 | N/A | 2.1 | 4.0 | 4.2 |
| Wi-Fi | yes | N/A | N/A | N/A | yes |
| Built-in navigation system | no | yes | N/A | N/A | yes |
| USB | N/A | N/A | yes | N/A | yes |
| Charging connection | N/A | N/A | N/A | Proprietary USB Cable | N/A |
| 4G (LTE) | N/A | N/A | N/A | N/A | yes |
| NFC | N/A | N/A | N/A | N/A | yes |
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