| Sizes | 41mm and new 45mm | — |
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| Display | Actua display, up to 2,000 nits peak, down to 1 nit, 60 Hz to 1 Hz always-on; 45mm shows 40% more screen and 41mm 10% more than Pixel Watch 2 (Google claims) | OLED Retina, up to 30% more screen area than Series 9 |
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| Battery | Up to 36 hours with Battery Saver Mode (Google claim); 45mm has a 35% bigger battery, 41mm charges 20% faster | — |
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| Software | Wear OS 5, Fitbit health and fitness features, six months of Fitbit Premium included | — |
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| Health | Loss of Pulse Detection, Daily Readiness, Cardio Load, Target Load, running form analysis | — |
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| Connectivity | Bluetooth/Wi-Fi and LTE models, Ultra-Wideband chip | — |
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| Price | 349.99 dollars (41mm) and 399.99 dollars (45mm) Bluetooth/Wi-Fi; 449.99 and 499.99 dollars LTE at launch in the US | — |
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| Case Sizes | — | 42mm / 46mm |
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| Chipset | — | Apple S10 (Sawtooth cores from A16 Bionic) |
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| Battery Life | — | 18 hours |
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| Health Sensors | — | HR, SpO2, ECG, FDA-approved sleep apnea detection, water depth/temperature |
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| OS | — | watchOS 10 |
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