  |  |  | |
| Editiorial reviews | |||
| User rating |
| Internal storage space | 4.0 GB | 4.0 GB | 4.0 GB |
|---|---|---|---|
| RAM Memory | N/A | 768.0 mB | 512.0 mB |
| CPU cores | N/A | Dual Core | Dual Core |
| CPU speed | N/A | 1.0 GHz | 1.2 GHz |
| Screen size | 1.34 in | 1.2 in | 1.34 in |
|---|---|---|---|
| Display technology | LCD | OLED | LCD |
| Screen resolution | 300 x 300 px | 360 x 360 px | 320 x 300 px |
| Type of glass | Gorilla Glass | Gorilla Glass | Gorilla Glass |
| Heart rate monitor | yes | yes | yes |
|---|---|---|---|
| Gyroscope | yes | yes | yes |
| Barometer | N/A | yes | yes |
| Microphone | N/A | yes | yes |
| Phone Functionality | N/A | yes | N/A |
| Compass | N/A | N/A | yes |
| Case diameter | 0.94 in | 1.69 in | 1.81 in |
|---|---|---|---|
| Case height | 0.94 in | 1.76 in | 1.81 in |
| Weight | 1.31 oz | 2.36 oz | 1.89 oz |
| Watch case material |
|
|
|
| Wrist band material | Silicone | Silicone | Silicone |
| Colour of bracelet |
|
|
|
| Case thickness | N/A | 0.46 in | 0.47 in |
| IP code (level of dust/water resistance) | N/A | IP68 | IP67 |
| Water resistance | N/A | N/A | yes |
| Fully waterproof | N/A | N/A | no |
| Bluetooth | yes | yes | yes |
|---|---|---|---|
| Bluetooth version | 4.0 | 4.2 | 4.0 |
| Wi-Fi | yes | yes | yes |
| Built-in navigation system | no | yes | yes |
| 4G (LTE) | N/A | yes | N/A |
| NFC | N/A | yes | N/A |
| USB | N/A | yes | yes |
| GPS | N/A | N/A | yes |
| GLONASS | N/A | N/A | yes |
| Battery technology | Li-polymer | Li-Ion | Li-polymer |
|---|---|---|---|
| Battery life (running) | 96.0 h | 48.0 h | 35.0 h |
| Wireless charging | N/A | yes | N/A |
| Battery capacity | N/A | 300.0 mAh | 280.0 mAh |
| Average battery life (standby) | N/A | 96.0 h | 278.0 h |
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