Refurbished Tech Buying Guides UK » S11 Chip

Apple Watch Series 12 adds the S11 chip, Readiness, improved heart-rate and HRV sensing, Siri AI, tougher Ceramic Shield 2 and faster short charging. But Series 11 already offers a 2,000-nit Always-On display, 24-hour battery, 5G, ECG, sleep score and watchOS 27. Here’s which offers better value.

Apple Watch Ultra 4 brings longer battery life, the S11 chip, new health sensing, Readiness and Siri AI — but Ultra 3 already offers the same rugged 49mm titanium design, bright display, 5G, satellite connectivity and serious sports features. Here’s which offers better value in 2026.