  |  |  |  |  |
| Screen size | 1.3 in | 1.34 in | 1.4 in | 1.97 in | 1.97 in |
|---|---|---|---|---|---|
| Display technology | LCD | LCD | OLED | LED | LED |
| Screen resolution | 240 x 180 px | 300 x 300 px | 400 x 400 px | 128 x 128 px | 128 x 128 px |
| Type of glass | Gorilla Glass | Gorilla Glass | Sapphire glass | N/A | N/A |
| Type of screen | Colour screen | N/A | N/A | N/A | N/A |
| Case diameter | 1.58 in | 0.94 in | 1.65 in | 1.97 in | 1.97 in |
|---|---|---|---|---|---|
| Case height | 1.65 in | 0.94 in | 0.0 in | N/A | N/A |
| Case thickness | 0.44 in | N/A | 0.44 in | 0.71 in | 0.59 in |
| Weight | 1.55 oz | 1.31 oz | N/A | 3.14 oz | 2.82 oz |
| Replaceable wrist bands | yes | N/A | yes | yes | yes |
| Watch case material |
|
| Stainless steel | Polyamide | Polyamide |
| Wrist band material |
| Silicone |
| Elastomer | Silicone |
| Colour of bracelet |
|
| N/A | N/A | N/A |
| Water resistance | yes | N/A | N/A | yes | yes |
| Fully waterproof | no | N/A | N/A | yes | yes |
| Wrist band width | N/A | N/A | 0.71 in | N/A | N/A |
| Anti scratch lens | N/A | N/A | yes | yes | yes |
| IP code (level of dust/water resistance) | N/A | N/A | IP67 | N/A | N/A |
| 3G (UMTS) | no | N/A | N/A | N/A | N/A |
|---|---|---|---|---|---|
| 4G (LTE) | no | N/A | N/A | N/A | N/A |
| Bluetooth | yes | yes | yes | yes | yes |
| Bluetooth version | 4.0 | 4.0 | 4.1 | 4.0 | 4.0 |
| Wi-Fi | no | yes | yes | N/A | N/A |
| NFC | no | N/A | N/A | N/A | N/A |
| USB | yes | N/A | yes | N/A | N/A |
| Built-in navigation system | no | no | N/A | N/A | N/A |
| GPS | yes | N/A | N/A | yes | yes |
| Charging connection | N/A | N/A | Proprietary USB Cable | Proprietary USB Cable | Proprietary USB Cable |
| Battery technology | Li-polymer | Li-polymer | Li-Ion | Li-Ion | Li-Ion |
|---|---|---|---|---|---|
| Battery capacity | 167.0 mAh | N/A | 300.0 mAh | N/A | N/A |
| Average battery life (standby) | 120.0 h | N/A | N/A | N/A | N/A |
| Battery life (running) | 120.0 h | 96.0 h | N/A | N/A | N/A |
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