  |  |  |  |  |
| RAM Memory | 512.0 mB | 512.0 mB | 512.0 mB | 512.0 mB | 512.0 mB |
|---|---|---|---|---|---|
| Internal storage space | 4.0 GB | 4.0 GB | 4.0 GB | 4.0 GB | 4.0 GB |
| CPU cores | N/A | N/A | Dual Core | Dual Core | Dual Core |
| CPU speed | N/A | N/A | 1.2 GHz | 1.0 GHz | 1.0 GHz |
| Screen size | 1.5 in | 1.19 in | 1.4 in | 1.63 in | 1.2 in |
|---|---|---|---|---|---|
| Display technology | LCD | OLED | N/A | OLED | OLED |
| Screen resolution | 360 x 326 px | 390 x 390 px | 400 x 400 px | 320 x 320 px | 360 x 360 px |
| Type of glass | Mineral glass | Mineral glass | N/A | Gorilla Glass | Gorilla Glass |
| Type of screen | N/A | N/A | N/A | Colour screen | Colour screen |
| Touchscreen | N/A | N/A | N/A | N/A | yes |
| Built in clockwork (Hybrid) | yes | N/A | N/A | N/A | N/A |
|---|---|---|---|---|---|
| Microphone | yes | yes | N/A | yes | yes |
| Gyroscope | yes | yes | yes | yes | yes |
| Accelerometer | N/A | N/A | yes | yes | yes |
| Heart rate monitor | N/A | N/A | yes | yes | yes |
| Compass | N/A | N/A | yes | N/A | N/A |
| Pedometer | N/A | N/A | yes | N/A | yes |
| Built-in camera | N/A | N/A | N/A | no | no |
| Ambient Light Sensor | N/A | N/A | N/A | N/A | yes |
| Barometer | N/A | N/A | N/A | N/A | yes |
| Case diameter | 0.87 in | 1.65 in | 1.77 in | 1.49 in | 1.67 in |
|---|---|---|---|---|---|
| Case height | 1.75 in | 1.65 in | N/A | 2.31 in | 1.96 in |
| Case thickness | 0.51 in | N/A | 0.51 in | 0.39 in | 0.45 in |
| Weight | 5.75 oz | N/A | N/A | 1.94 oz | 1.66 oz |
| Watch case material | Stainless steel | Stainless steel | N/A |
| Stainless steel |
| Wrist band material |
|
| N/A | Rubber |
|
| Colour of bracelet |
|
| N/A |
|
|
| Water resistance | yes | N/A | yes | yes | yes |
| Fully waterproof | yes | N/A | N/A | N/A | yes |
| IP code (level of dust/water resistance) | IP67 | IP67 | IP67 | IP67 | IP68 |
| Anti scratch lens | N/A | N/A | yes | N/A | N/A |
| Dust resistant | N/A | N/A | yes | N/A | yes |
| Bluetooth | yes | yes | yes | yes | yes |
|---|---|---|---|---|---|
| Bluetooth version | 4.1 | 4.1 | 4.1 | 4.0 | 4.1 |
| Wi-Fi | yes | N/A | N/A | no | yes |
| Built-in navigation system | no | no | yes | N/A | no |
| 4G (LTE) | N/A | N/A | N/A | no | yes |
| NFC | N/A | N/A | N/A | no | yes |
| USB | N/A | N/A | N/A | yes | yes |
| Infrared (IR) | N/A | N/A | N/A | yes | N/A |
| 3G (UMTS) | N/A | N/A | N/A | N/A | no |
| Wireless networking standard | N/A | N/A | N/A | N/A |
|
| Charging connection | N/A | N/A | N/A | N/A | Wireless |
| Headphone connection | N/A | N/A | N/A | N/A | Bluetooth |
| Wireless charging | yes | yes | N/A | N/A | yes |
|---|---|---|---|---|---|
| Battery capacity | 360.0 mAh | 300.0 mAh | 300.0 mAh | 300.0 mAh | 250.0 mAh |
| Average battery life (standby) | 24.0 h | 24.0 h | N/A | 144.0 h | 24.0 h |
| Battery life (running) | 24.0 h | 24.0 h | N/A | 48.0 h | 24.0 h |
| Battery technology | N/A | N/A | Li-Ion | Li-Ion | Li-Ion |
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