See how the Series 9 holds up against newer models in these recent long-term reviews:
: It includes a robust set of sensors, including ECG , heart rate monitoring, and temperature sensing. Note that Blood Oxygen features may be restricted in certain regions due to ongoing patent disputes. Series 9 ...
: It holds the standard 18-hour "all-day" battery life, though real-world use with Low Power Mode can push this closer to 35-36 hours. Is it Worth Buying in 2026? Best Value : For many users, the See how the Series 9 holds up against
: The 2000-nit Always-On Retina display remains excellent for outdoor visibility, effectively matching the peak brightness of many newer standard models. Is it Worth Buying in 2026
remains a highly capable smartwatch, particularly for those who can find it at a discount compared to the newer Series 10 or 11. While newer models offer refinements like slimmer designs or specialized sensors for hypertension, the