  |  |  |  | |
| Editiorial reviews | ||||
| User rating |
| Screen size | 1.3 in | 1.4 in | 1.56 in | 1.97 in |
|---|---|---|---|---|
| Display technology | OLED | N/A | LCD | LED |
| Screen resolution | 320 x 320 px | 400 x 400 px | 320 x 290 px | 128 x 128 px |
| Type of glass | Plexiglas | N/A | N/A | N/A |
| Type of screen | Colour screen | N/A | N/A | N/A |
| Touchscreen | N/A | N/A | yes | N/A |
| Case diameter | 1.83 in | 1.77 in | 1.81 in | 1.97 in |
|---|---|---|---|---|
| Case height | 2.11 in | N/A | N/A | N/A |
| Case thickness | 0.38 in | 0.51 in | 0.43 in | 0.59 in |
| Wrist band width | 0.87 in | N/A | N/A | N/A |
| Weight | 2.19 oz | N/A | 1.73 oz | 2.82 oz |
| Replaceable wrist bands | yes | N/A | yes | yes |
| Watch case material |
| N/A | Stainless steel | Polyamide |
| Wrist band material |
| N/A | N/A | Silicone |
| Colour of bracelet | Black | N/A | N/A | N/A |
| Anti scratch lens | yes | yes | yes | yes |
| Water resistance | yes | yes | yes | yes |
| Fully waterproof | yes | N/A | yes | yes |
| IP code (level of dust/water resistance) | IP67 | IP67 | N/A | N/A |
| Dust resistant | N/A | yes | N/A | N/A |
| 3G (UMTS) | no | N/A | N/A | N/A |
|---|---|---|---|---|
| 4G (LTE) | no | N/A | N/A | N/A |
| Bluetooth | yes | yes | yes | yes |
| Bluetooth version | 4.0 | 4.1 | 4.0 | 4.0 |
| Wi-Fi | yes | N/A | yes | N/A |
| NFC | no | N/A | N/A | N/A |
| USB | yes | N/A | N/A | N/A |
| Charging connection | microUSB | N/A | Wireless | Proprietary USB Cable |
| Built-in navigation system | no | yes | N/A | N/A |
| Headphone connection | N/A | N/A | Bluetooth | N/A |
| GPS | N/A | N/A | N/A | yes |
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