| Case Sizes | 42mm / 46mm | — |
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| Display | OLED Retina, up to 30% more screen area than Series 9 | Ion-X glass on aluminium models (2x more scratch resistant), sapphire crystal on titanium models |
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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 | Optical heart sensor with hypertension notifications, sleep score, ECG, blood oxygen, sleep apnea notifications, wrist temperature |
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| OS | watchOS 10 | watchOS 26 (requires iPhone 11 or later with iOS 26) |
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| Case Size | — | 42mm / 46mm, aluminium (jet black, rose gold, silver, space gray) or polished titanium (natural, gold, slate) |
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| Battery | — | Up to 24 hours; 15 minutes of fast charging adds up to 8 hours |
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| Connectivity | — | 5G cellular models with redesigned antenna |
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