  |  |  |  |  |
| Screen size | 1.34 in | 1.34 in | 0.95 in | 1.3 in | N/A |
|---|---|---|---|---|---|
| Display technology | LCD | LCD | OLED | OLED | OLED |
| Screen resolution | 300 x 300 px | 300 x 300 px | 144 x 168 px | N/A | 96 x 64 px |
| Type of glass | Gorilla Glass | Gorilla Glass | Gorilla Glass | Mineral glass | N/A |
| Heart rate monitor | yes | yes | yes | N/A | yes |
|---|---|---|---|---|---|
| Gyroscope | yes | yes | yes | yes | yes |
| Microphone | N/A | N/A | yes | N/A | N/A |
| Phone Functionality | N/A | N/A | yes | N/A | N/A |
| Case diameter | 0.94 in | 0.94 in | 1.57 in | 1.73 in | 2.32 in |
|---|---|---|---|---|---|
| Case height | 0.94 in | 0.94 in | 1.18 in | 0.0 in | 1.18 in |
| Weight | 1.31 oz | 1.31 oz | 1.41 oz | N/A | 1.45 oz |
| Watch case material |
| Aluminum | Plastic/Synthetic | Stainless steel | N/A |
| Wrist band material | Silicone |
| Silicone |
| N/A |
| Colour of bracelet |
|
|
|
| N/A |
| Case thickness | N/A | N/A | 0.53 in | 0.55 in | 0.35 in |
| IP code (level of dust/water resistance) | N/A | N/A | IP67 | N/A | N/A |
| Bluetooth | yes | yes | no | yes | yes |
|---|---|---|---|---|---|
| Bluetooth version | 4.0 | 4.0 | 4.1 | N/A | 2.1 |
| Wi-Fi | yes | yes | yes | N/A | N/A |
| Built-in navigation system | no | yes | yes | yes | N/A |
| NFC | N/A | yes | N/A | N/A | N/A |
| 3G (UMTS) | N/A | N/A | yes | N/A | N/A |
| USB | N/A | N/A | yes | N/A | yes |
| GPS | N/A | N/A | yes | N/A | N/A |
Add products
