Apple Watch Series 10 [GPS, 46mm] - Rose Gold Aluminum Case with Light Blush Sport Band, M/L (Renewed)

Why it's worth it

This is Apple's mainstream flagship in a 46mm aluminum case, sold here as a professionally inspected renewed unit. You get the full sensor set — ECG, blood oxygen, skin temperature and sleep apnea notifications — plus the thinnest, lightest Apple Watch body yet.

The sensor set is the whole argument for this watch. You get an ECG app, blood oxygen, skin temperature, high and low heart rate alerts, irregular rhythm notifications, and sleep apnea detection that reviewers singled out as a genuine first for the line. None of it replaces a doctor. But if you want one device that flags something worth asking about, this is the most complete option Apple sells to iPhone owners.

At 9.7mm, it's thin enough that you'll actually sleep in it. That matters more than it sounds. Sleep tracking only works if you keep the watch on overnight, and bulky watches come off at bedtime. The Series 10 case is the slimmest Apple has shipped, and the aluminum version weighs almost nothing. Owners who've upgraded from older Apple Watches consistently mention the comfort before anything else.

From our review of 10 smartwatches and fitness trackers, by Ben Carter, Tech Editor

What we like

• +The sensor set is the whole argument for this watch
• +At 9.7mm, it's thin enough that you'll actually sleep in it
• +Charging is quick enough to slot into your routine
• +The always-on display is readable from odd angles

What to know

• –Renewed means compromises, and you should know them going in
• –You'll charge it every day, no exceptions
• –It's iPhone-only, and the aluminum scratches