  |  |  |  | |
| Editiorial reviews | ||||
| User rating |
| Gyroscope | yes | yes | yes | yes |
|---|---|---|---|---|
| Heart rate monitor | N/A | yes | yes | N/A |
| Built-in camera | N/A | N/A | no | N/A |
| Accelerometer | N/A | N/A | yes | yes |
| Ambient Light Sensor | N/A | N/A | yes | yes |
| Barometer | N/A | N/A | yes | N/A |
| Microphone | N/A | N/A | yes | N/A |
| Pedometer | N/A | N/A | yes | N/A |
| Compass | N/A | N/A | N/A | yes |
| Case diameter | 1.77 in | 2.32 in | 1.67 in | 1.97 in |
|---|---|---|---|---|
| Case height | 1.77 in | 1.18 in | 1.96 in | N/A |
| Case thickness | 0.51 in | 0.35 in | 0.45 in | 0.39 in |
| Weight | 5.89 oz | 1.45 oz | 1.66 oz | 1.59 oz |
| Watch case material | Stainless steel | N/A | Stainless steel | Stainless steel |
| Wrist band material | Steel | N/A |
|
|
| Colour of bracelet |
| N/A |
| N/A |
| Water resistance | N/A | N/A | yes | yes |
| Fully waterproof | N/A | N/A | yes | yes |
| Dust resistant | N/A | N/A | yes | yes |
| IP code (level of dust/water resistance) | N/A | N/A | IP68 | N/A |
| Replaceable wrist bands | N/A | N/A | N/A | yes |
| Anti scratch lens | N/A | N/A | N/A | yes |
| Bluetooth | yes | yes | yes | yes |
|---|---|---|---|---|
| Bluetooth version | 4.1 | 2.1 | 4.1 | 4.0 |
| Built-in navigation system | yes | N/A | no | N/A |
| USB | N/A | yes | yes | N/A |
| 3G (UMTS) | N/A | N/A | no | N/A |
| 4G (LTE) | N/A | N/A | yes | N/A |
| Wi-Fi | N/A | N/A | yes | yes |
| Wireless networking standard | N/A | N/A |
| N/A |
| NFC | N/A | N/A | yes | yes |
| Charging connection | N/A | N/A | Wireless | microUSB |
| Headphone connection | N/A | N/A | Bluetooth | Bluetooth |
| GPS | N/A | N/A | N/A | yes |
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