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The Apple Watch Series 12 in the 46 mm aluminum case with GPS and Cellular is Apple's flagship health-focused smartwatch. It adds high-frequency HRV readings, hypertension notifications, a sleep score and readiness metrics on top of the usual workout tracking, plus Siri AI and Audio Intelligence. It pairs only with an iPhone. The best new price is $427.49 at eBay as of November 7, 2026, with 7 stores listing it new.
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Availability unknownSold by systemmods101 (99.6% positive, 1,000 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.
Availability unknownSold by 6ave (99.8% positive, 104,200 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.
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Lowest price we've seen: $539.99 on Nov 7 at Abt Electronics. Tracked across 5 stores since Nov 7.
Ratings average 4.4 out of 5 from 281 buyers, who mostly praise the health tracking and the freedom of cellular. Complaints center on battery life and the iPhone-only limit.
Apple Watch Series 12 is a more powerful health and fitness tracker. Better understand your body with the most accurate heart rate sensing in a wearable,¹ with high-frequency HRV readings for insights on stress and recovery, hypertension notifications,⁵ cycle tracking,⁶ and sleep score. Stay motivated with readiness, advanced workout metrics and features like Pacer, Heart Rate Zones, and more. And now every day is more effortless with Siri AI³ and Audio Intelligence.