Compare Apple Watch
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| Dimensions | not yet known | 39.5 x 39.5 x 10.5 mm | 41.9 x 45.7 x 12.7 mm | 46 x 49 x 12.9 mm | 43 x 43 x 12.6 mm |
| Weight | not yet known | 25 grams | 49 grams | 62 grams | 46 grams |
| Stand-by | 0.8 days | depends on usage | 3.3 days | depends on usage | 5 days |
| Talk time | 3 hour | depends on usage | depends on usage | depends on usage | depends on usage |
| Watch | |||||
| Touchscreen | Capacitive | Capacitive | Capacitive | Capacitive | |
| Voice command | |||||
| Directional key | |||||
| watchOS | 2.0 | ||||
| Tizen | 4 | 4 | 2.3.2 | ||
| Color display | Adjustable display brightness, 16.777.216 colors (24 bits), AMOLED | Adjustable display brightness, 16.777.216 colors (24 bits), Circular Super AMOLED, Always On feature | Adjustable display brightness, 16.777.216 colors (24 bits), Circular Super AMOLED, Always On feature | Adjustable display brightness, 16.777.216 colors (24 bits), Circular Super AMOLED | TFT |
| 1.34 inch + 1.65 inch | 1.1 inch | 1.2 inch | 1.3 inch | |
| 272 x 340 pixels + 312 x 390 pixels | 360 x 360 pixels | 360 x 360 pixels | 360 x 360 pixels | 360 x 360 pixels |
| 5:4 | 1:1 | 1:1 | 1:1 | |
| 373 | 463 | 424 | 392 | |
| 25% | 24.3% | 24.2% | ||
| Processor | Apple S1 | Samsung Exynos 9110, Dual Core | Samsung Exynos 9110, Dual Core | Dual Core | Dual Core |
| 1.15 GHz | 1.15 GHz | 1 GHz | 1.2 GHz | |
| Integrated antenna | |||||
| Dust and waterproof | IPX7 | IP68, 5 ATM | IP68, 5 ATM | IP68 | IP67 |
| Gorilla Glass | |||||
| Rugged housing | MIL-STD-810G | MIL-STD-810G | |||
| Integrated handsfree speaker | |||||
| Vibrating alert | |||||
| eSIM | |||||
| Flight mode | |||||
| Alarm clock | |||||
| Date and time notation | |||||
| Reminder list | |||||
| Stopwatch & countdown timer | |||||
| Agenda | |||||
| Pedometer | |||||
| Photo album | |||||
| Build-in navigation system | Apple Maps | ||||
| A-GPS | |||||
| GLONASS | |||||
| GPS receiver | |||||
| Microphone | |||||
| Audio codec support | AAC, AAC+, eAAC+, OGG Vorbis | ||||
| Audio file support | M4A, MP3 | ||||
| Internal memory | |||||
| 512 MB | 768 MB | 768 MB | 768 MB | 4 GB |
| 8 GB | 4 GB | 4 GB | 4 GB | 512 MB |
| Bluetooth | v4.0 | v4.2 | v4.2 | v4.2, Advanced Audio Distribution Profile (A2DP) | v4.0 |
| Synchronisation | |||||
| Wireless Lan (WLAN/Wi-Fi) | Wi-Fi 4 (802.11n) | Wi-Fi 4 (802.11n) | Wi-Fi 4 (802.11n) | Wi-Fi 4 (802.11n) | |
| NFC | |||||
| Battery | Li-ion | Li-ion | Li-poly | ||
| 205 mAh + 246 mAh | 230 mAh | 270 mAh | 380 mAh | 390 mAh |
| Wireless charging | |||||
| Ambient light sensor | |||||
| Gesture recognition | |||||
| Gyroscope | |||||
| Heart rate monitor | |||||
| Barometer | |||||
| With iOS | 8.3+ | 9.0+ | 9.0+ | 9.0+ | |
| With Android | 5.0+ | 5.0+ | 4.4+ | ||
| Instant messaging | |||||
| MMS | |||||
| SMS | |||||
| 4G (LTE) | |||||
| GPRS | |||||
| UMTS | |||||
| USB | v2.0 | ||||
