The Apple Watch Series 11 42mm and the OnePlus Watch 3 43mm both offer a range of advanced features, though there are some differences. Both watches track heart rate variability (HRV), measure VO2 max, and track resting heart rate. They also include fast/slow heart rate notifications, the ability to answer calls, call control, notifications, and voice commands. The Apple Watch, however, provides additional features such as ECG technology, irregular heart rate warnings, and fall detection, while the OnePlus Watch lacks ECG and irregular heart rate warnings and does not include fall detection.
Another difference is in readiness level tracking. The OnePlus Watch has a readiness level feature, which the Apple Watch does not. Both devices have silent alarms, vibrating alerts, and a stopwatch, but the Apple Watch does not include a smart alarm, whereas the OnePlus Watch also lacks this feature. Both watches include internal storage for apps and data, with the Apple Watch having 64GB and the OnePlus Watch offering 32GB.
Both watches have a built-in camera remote control function, but neither has a front camera. Neither watch is particularly fast at acquiring GPS, as both are noted to have similar performance in this area. Overall, the Apple Watch includes more advanced health tracking features, such as ECG and fall detection, while the OnePlus Watch offers unique readiness level tracking but lacks some of the advanced health features of the Apple Watch.