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Apple Watch battery replacement costs $99 through Apple, but watchOS 27 drops support for Series 8 and older
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Apple charges a flat $99 fee for Apple Watch battery replacement, but the latest watchOS 27 only runs on Series 9, SE 3, and Ultra 2 or newer, making older models questionable candidates for the investment.
Engineers and technical users deciding whether to repair or replace a wearable need to weigh the $99 service cost against software end-of-life. watchOS 27 cuts off the Series 8 and earlier, while watchOS 26's last compatible models were the Series 6 and second-generation SE, meaning anything older lost support in September 2024.
Written by elseif from the cluster below · every claim links back to a sourceThe three things worth knowing
Apple's flat battery replacement fee is $99, available through Apple or authorized providers like Best Buy, with a typical turnaround of about a week.
watchOS 27 supports only the Apple Watch Series 9, SE 3, and Ultra 2 and newer, leaving Series 8 and older on unsupported software.
DIY battery replacement is possible using iFixit guides, but iFixit only sells replacement batteries for the original and Series 1 models.
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