  |  |  |  |  |
| Screen size | 1.4 in | N/A | 1.0 in | 1.97 in | 1.97 in |
|---|---|---|---|---|---|
| Display technology | OLED | OLED | N/A | LED | LED |
| Screen resolution | 400 x 400 px | 96 x 64 px | 180 x 180 px | 128 x 128 px | 128 x 128 px |
| Case diameter | 1.73 in | 2.32 in | 1.5 in | 1.97 in | 1.97 in |
|---|---|---|---|---|---|
| Case height | 0.0 in | 1.18 in | N/A | N/A | N/A |
| Case thickness | 0.53 in | 0.35 in | 0.28 in | 0.71 in | 0.59 in |
| Weight | 1.46 oz | 1.45 oz | 0.99 oz | 3.14 oz | 2.82 oz |
| Wrist band material | Silicone | N/A |
| Elastomer | Silicone |
| Colour of bracelet |
| N/A | N/A | N/A | N/A |
| IP code (level of dust/water resistance) | IP67 | N/A | N/A | N/A | N/A |
| Wrist band width | N/A | N/A | 0.55 in | N/A | N/A |
| Replaceable wrist bands | N/A | N/A | yes | yes | yes |
| Watch case material | N/A | N/A | Stainless steel | Polyamide | Polyamide |
| Anti scratch lens | N/A | N/A | yes | yes | yes |
| Water resistance | N/A | N/A | yes | yes | yes |
| Fully waterproof | N/A | N/A | N/A | yes | yes |
| Bluetooth | yes | yes | yes | yes | yes |
|---|---|---|---|---|---|
| Bluetooth version | 4.1 | 2.1 | 4.0 | 4.0 | 4.0 |
| Built-in navigation system | yes | N/A | N/A | N/A | N/A |
| USB | N/A | yes | N/A | N/A | N/A |
| Charging connection | N/A | N/A | Proprietary USB Cable | Proprietary USB Cable | Proprietary USB Cable |
| GPS | N/A | N/A | N/A | yes | yes |
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