Compare Fitbit Sense 2
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| Dimensions | 40.5 x 40.5 x 12.3 mm | 42.8 x 44.4 x 9 mm | 49 x 44 x 14.4 mm | 45.4 x 45.4 x 10.5 mm |
| Weight | not yet known | 33.3 grams | 61.4 grams | 46.5 grams |
| Stand-by | depends on usage | depends on usage | 3 days | depends on usage |
| Talk time | depends on usage | depends on usage | depends on usage | depends on usage |
| Watch | ||||
| Directional key | ||||
| Touchscreen | Capacitive | Force Touch, Capacitive | Capacitive | |
| Voice command | ||||
| Hand gestures | ||||
| Color display | 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), Always-On Retina Display, Always On feature | Adjustable display brightness, 16.777.216 colors (24 bits), Circular Super AMOLED, Always On feature |
| 1.34 inch | 1.5 inch | 1.9 inch | 1.4 inch |
| 300 x 300 pixels | 480 x 480 pixels | 410 x 502 pixels | 450 x 450 pixels |
| 1:1 | 1:1 | 1:1 | |
| 3000 nits | |||
| 317 | 453 | 341 | 455 |
| 35.3% | 38.2% | 52.9% | 30.7% |
| Aluminium | ||||
| Dust and waterproof | 5 ATM | IP68, 5 ATM | IP6X, 10 ATM | IP68, 5 ATM |
| Gorilla Glass | ||||
| Rugged housing | MIL-STD-810H | MIL-STD-810H | MIL-STD-810H | |
| Sapphire Crystal | ||||
| Sustainable | Carbon neutral | |||
| Titanium | ||||
| Vibrating alert | ||||
| Integrated handsfree speaker | ||||
| eSIM | ||||
| Flight mode | ||||
| Agenda | ||||
| Alarm clock | ||||
| Date and time notation | ||||
| Reminder list | ||||
| Stopwatch & countdown timer | ||||
| Pedometer | ||||
| Photo album | ||||
| A-GPS | ||||
| Digital Compass | ||||
| GLONASS | ||||
| GPS receiver | ||||
| Beidou | ||||
| Galileo | ||||
| Build-in navigation system | Apple Maps | |||
| Quasi-Zenith (QZSS) | ||||
| Microphone | ||||
| Internal memory | ||||
| 2 GB | 1.5 GB | ||
| 4 GB | 16 GB | 64 GB | 16 GB |
| Bluetooth | v5.0 | v5.3 | v5.3 | v5.2 |
| NFC | ||||
| Wireless Lan (WLAN/Wi-Fi) | Wi-Fi 4 (802.11n) | Wi-Fi 4 (802.11n) | Wi-Fi 4 (802.11n) | |
| Satellite communication | ||||
| Synchronisation | ||||
| Ultra-wideband (UWB) | ||||
| Battery | Li-poly | Li-ion | ||
| 425 mAh | 564 mAh | 590 mAh | |
| Wireless charging | ||||
| Fast charging | ||||
| Altimeter | ||||
| Ambient light sensor | ||||
| Gesture recognition | ||||
| Gyroscope | ||||
| Heart rate monitor | ||||
| Oxygen saturation (SpO2) | ||||
| Thermometer | ||||
| Barometer | ||||
| With Android | Vanaf 10.0 | Vanaf 10.0 | Vanaf 8.0 | |
| With iOS | Vanaf 14.0 | |||
| Wear OS | 4.0 | 3.5 | ||
| watchOS | 10 | |||
| One UI Watch | 5.0 | 4.5 | ||
| Integrated antenna | ||||
| Processor | Samsung Exynos W930, Dual Core | Apple S9, Dual Core | Samsung Exynos W920, Dual Core | |
| 1.4 GHz | 1.18 GHz | ||
| Instant messaging | ||||
| MMS | ||||
| SMS | ||||
| 4G (LTE) | ||||
| UMTS | ||||
