  |  |  |  | |
| Editiorial reviews | ||||
| User rating |
| Screen size | 1.34 in | 1.54 in | N/A | 1.34 in |
|---|---|---|---|---|
| Display technology | LCD | LCD | LCD | LCD |
| Screen resolution | 300 x 300 px | 240 x 240 px | 320 x 300 px | 320 x 300 px |
| Type of glass | Gorilla Glass | N/A | Sapphire glass | Gorilla Glass |
| Heart rate monitor | yes | yes | yes | yes |
|---|---|---|---|---|
| Gyroscope | yes | yes | N/A | yes |
| Built-in camera | N/A | yes | N/A | N/A |
| Accelerometer | N/A | yes | N/A | N/A |
| Microphone | N/A | yes | N/A | yes |
| Pedometer | N/A | yes | N/A | N/A |
| Barometer | N/A | N/A | yes | yes |
| Compass | N/A | N/A | N/A | yes |
| Case diameter | 0.94 in | 1.69 in | 1.97 in | 1.81 in |
|---|---|---|---|---|
| Case height | 0.94 in | 0.0 in | 1.97 in | 1.81 in |
| Weight | 1.31 oz | 1.53 oz | 2.86 oz | 1.89 oz |
| Watch case material |
|
| Stainless steel |
|
| Wrist band material | Silicone |
| Silicone | Silicone |
| Colour of bracelet |
|
|
|
|
| Case thickness | N/A | 0.43 in | 0.66 in | 0.47 in |
| Replaceable wrist bands | N/A | yes | N/A | N/A |
| Anti scratch lens | N/A | yes | N/A | N/A |
| Water resistance | N/A | N/A | N/A | yes |
| Fully waterproof | N/A | N/A | N/A | no |
| IP code (level of dust/water resistance) | N/A | N/A | N/A | IP67 |
| Bluetooth | yes | yes | yes | yes |
|---|---|---|---|---|
| Bluetooth version | 4.0 | 3.0 | N/A | 4.0 |
| Wi-Fi | yes | yes | N/A | yes |
| Built-in navigation system | no | no | yes | yes |
| USB | N/A | yes | yes | yes |
| Charging connection | N/A | Proprietary USB Cable | N/A | N/A |
| GPS | N/A | N/A | N/A | yes |
| GLONASS | N/A | N/A | N/A | yes |
| Battery technology | Li-polymer | Li-Ion | Li-Ion | Li-polymer |
|---|---|---|---|---|
| Battery life (running) | 96.0 h | 24.0 h | 120.0 h | 35.0 h |
| Battery capacity | N/A | 400.0 mAh | N/A | 280.0 mAh |
| Average battery life (standby) | N/A | 240.0 h | 336.0 h | 278.0 h |
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