  |  |  |  | |
| Editiorial reviews | ||||
| User rating |
| Screen size | 1.54 in | 1.26 in | 1.3 in | 1.97 in |
|---|---|---|---|---|
| Display technology | LCD | LCD | OLED | LED |
| Screen resolution | 240 x 240 px | 144 x 168 px | 360 x 360 px | 128 x 128 px |
| Type of glass | N/A | Gorilla Glass | Gorilla Glass | N/A |
| Type of screen | N/A | Monochrome | Colour screen | N/A |
| Case diameter | 1.69 in | 1.56 in | 1.81 in | 1.97 in |
|---|---|---|---|---|
| Case height | 0.0 in | 1.19 in | 1.93 in | N/A |
| Case thickness | 0.43 in | 0.44 in | 0.51 in | 0.59 in |
| Weight | 1.53 oz | 1.12 oz | 2.19 oz | 2.82 oz |
| Replaceable wrist bands | yes | N/A | N/A | yes |
| Watch case material |
| Plastic/Synthetic |
| Polyamide |
| Wrist band material |
| Silicone |
| Silicone |
| Colour of bracelet |
|
|
| N/A |
| Anti scratch lens | yes | N/A | N/A | yes |
| Water resistance | N/A | yes | yes | yes |
| Fully waterproof | N/A | no | no | yes |
| IP code (level of dust/water resistance) | N/A | N/A | IP68 | N/A |
| Bluetooth | yes | yes | yes | yes |
|---|---|---|---|---|
| Bluetooth version | 3.0 | 4.0 | 4.2 | 4.0 |
| Wi-Fi | yes | no | yes | N/A |
| USB | yes | no | yes | N/A |
| Charging connection | Proprietary USB Cable | N/A | N/A | Proprietary USB Cable |
| Built-in navigation system | no | no | yes | N/A |
| 3G (UMTS) | N/A | no | yes | N/A |
| 4G (LTE) | N/A | no | no | N/A |
| NFC | N/A | no | yes | N/A |
| Wireless networking standard | N/A | N/A |
| N/A |
| GPS | N/A | N/A | yes | yes |
| GLONASS | N/A | N/A | yes | N/A |
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