  |  |  |  |  |
| Screen size | 1.4 in | N/A | 2.0 in | 1.2 in | 1.63 in |
|---|---|---|---|---|---|
| Screen resolution | 400 x 400 px | 96 x 64 px | 360 x 480 px | 360 x 360 px | 320 x 320 px |
| Display technology | N/A | OLED | OLED | OLED | OLED |
| Touchscreen | N/A | N/A | yes | yes | N/A |
| Type of screen | N/A | N/A | Colour screen | Colour screen | Colour screen |
| Multi touch | N/A | N/A | yes | N/A | N/A |
| Type of glass | N/A | N/A | N/A | Gorilla Glass | Gorilla Glass |
| Accelerometer | yes | N/A | yes | yes | yes |
|---|---|---|---|---|---|
| Heart rate monitor | yes | yes | yes | yes | yes |
| Compass | yes | N/A | yes | N/A | yes |
| Gyroscope | yes | yes | yes | yes | yes |
| Pedometer | yes | N/A | yes | yes | N/A |
| Built-in camera | N/A | N/A | no | no | no |
| Ambient Light Sensor | N/A | N/A | yes | yes | N/A |
| Barometer | N/A | N/A | yes | yes | yes |
| Microphone | N/A | N/A | yes | yes | yes |
| Phone Functionality | N/A | N/A | yes | N/A | yes |
| UV meter | N/A | N/A | yes | N/A | N/A |
| Altimeter | N/A | N/A | N/A | N/A | yes |
| Case diameter | 1.77 in | 2.32 in | 1.57 in | 1.67 in | 1.45 in |
|---|---|---|---|---|---|
| Case thickness | 0.51 in | 0.35 in | 0.49 in | 0.45 in | 0.44 in |
| Anti scratch lens | yes | N/A | yes | N/A | yes |
| Water resistance | yes | N/A | yes | yes | yes |
| Dust resistant | yes | N/A | yes | yes | yes |
| IP code (level of dust/water resistance) | IP67 | N/A | IP67 | IP68 | IP68 |
| Case height | N/A | 1.18 in | 2.29 in | 1.96 in | 2.23 in |
| Weight | N/A | 1.45 oz | 2.36 oz | 1.66 oz | 2.6 oz |
| Replaceable wrist bands | N/A | N/A | yes | N/A | yes |
| Watch case material | N/A | N/A |
| Stainless steel | Stainless steel |
| Wrist band material | N/A | N/A |
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| Colour of bracelet | N/A | N/A |
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| Fully waterproof | N/A | N/A | yes | yes | yes |
| Wrist band width | N/A | N/A | N/A | N/A | 0.87 in |
| Bluetooth | yes | yes | yes | yes | yes |
|---|---|---|---|---|---|
| Bluetooth version | 4.1 | 2.1 | 4.1 | 4.1 | 4.0 |
| Built-in navigation system | yes | N/A | yes | no | yes |
| USB | N/A | yes | yes | yes | yes |
| 3G (UMTS) | N/A | N/A | yes | no | no |
| 4G (LTE) | N/A | N/A | no | yes | yes |
| Wi-Fi | N/A | N/A | yes | yes | yes |
| Wireless networking standard | N/A | N/A |
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| NFC | N/A | N/A | no | yes | yes |
| Charging connection | N/A | N/A | microUSB | Wireless | Wireless |
| Headphone connection | N/A | N/A | 3.5 mm | Bluetooth | Bluetooth |
| GPS | N/A | N/A | yes | N/A | yes |
| GLONASS | N/A | N/A | yes | N/A | yes |
| Battery technology | Li-Ion | Li-Ion | Li-Ion | Li-Ion | Li-Ion |
|---|---|---|---|---|---|
| Battery capacity | 300.0 mAh | 200.0 mAh | 300.0 mAh | 250.0 mAh | 315.0 mAh |
| Average battery life (standby) | N/A | N/A | 96.0 h | 24.0 h | 150.0 h |
| Battery life (running) | N/A | N/A | 48.0 h | 24.0 h | 25.0 h |
| Wireless charging | N/A | N/A | N/A | yes | yes |
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