  |  |  | |
| Editiorial reviews | |||
| User rating |
| RAM Memory | 512.0 mB | 32.0 mB | 768.0 mB |
|---|---|---|---|
| CPU cores | Single Core | N/A | Dual Core |
| Internal storage space | N/A | 0.06 GB | 4.0 GB |
| CPU speed | N/A | N/A | 1.0 GHz |
| Screen size | 1.39 in | 0.95 in | 1.3 in |
|---|---|---|---|
| Display technology | OLED | OLED | OLED |
| Screen resolution | 400 x 400 px | 144 x 168 px | 360 x 360 px |
| Type of glass | N/A | Gorilla Glass | Gorilla Glass |
| Type of screen | N/A | N/A | Colour screen |
| Accelerometer | yes | N/A | N/A |
|---|---|---|---|
| Gyroscope | yes | yes | yes |
| Heart rate monitor | N/A | yes | yes |
| Microphone | N/A | yes | yes |
| Phone Functionality | N/A | yes | yes |
| Built-in camera | N/A | N/A | no |
| Barometer | N/A | N/A | yes |
| Compass | N/A | N/A | yes |
| Case thickness | 0.35 in | 0.53 in | 0.51 in |
|---|---|---|---|
| Replaceable wrist bands | yes | N/A | N/A |
| Watch case material | Stainless steel | Plastic/Synthetic |
|
| Wrist band material |
| Silicone |
|
| Fully waterproof | yes | N/A | no |
| Dust resistant | yes | N/A | N/A |
| Case diameter | N/A | 1.57 in | 1.81 in |
| Case height | N/A | 1.18 in | 1.93 in |
| Weight | N/A | 1.41 oz | 2.19 oz |
| Colour of bracelet | N/A |
|
|
| IP code (level of dust/water resistance) | N/A | IP67 | IP68 |
| Water resistance | N/A | N/A | yes |
| Bluetooth | yes | no | yes |
|---|---|---|---|
| Bluetooth version | 4.0 | 4.1 | 4.2 |
| Wi-Fi | yes | yes | yes |
| NFC | yes | N/A | yes |
| 3G (UMTS) | N/A | yes | yes |
| USB | N/A | yes | yes |
| Built-in navigation system | N/A | yes | yes |
| GPS | N/A | yes | yes |
| 4G (LTE) | N/A | N/A | no |
| Wireless networking standard | N/A | N/A |
|
| GLONASS | N/A | N/A | yes |
| Battery capacity | 340.0 mAh | 130.0 mAh | 380.0 mAh |
|---|---|---|---|
| Average battery life (standby) | 48.0 h | N/A | 96.0 h |
| Battery technology | N/A | Li-Ion | Li-Ion |
| Battery life (running) | N/A | 144.0 h | 96.0 h |
| Wireless charging | N/A | N/A | yes |
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