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Editor's note, June 16, 2025: OnePlus released a smaller 43mm version of the OnePlus Watch 3 in silver stainless steel. This review has been updated to reflect the new addition to the lineup.
Editor's note, March 4, 2025: We've updated our score for the OnePlus Watch 3 from 8.5 to 8.8 to reflect that OnePlus extended its Wear OS update cycle to three years of software and security updates, with support lasting until 2027 with Wear OS 7.
In my 10-plus years of testing smartwatches, I've never had to actively try to drain a battery. That changed when I strapped on the $350 OnePlus Watch 3. Five days into my battery test, after charging it to 100%, this watch was still going strong -- tracking my sleep, runs and vitals without missing a beat.
I'll admit, the Watch 3 didn't make the best first impression -- its masculine design and oversized 47mm screen practically swallowed my average-size wrist. I half-expected to write it off as another midrange smartwatch destined to collect dust in a drawer. But the exceptional battery life makes it easy to overlook a few drawbacks, like the size and the lack of ECG functionality in the US.
8.7 / 10
SCORE OnePlus Watch 3 $350 at Oneplus Pros 5-day battery life with all features enabled
Sleek comfortable design
Customizable buttons as shortcuts Advanced metrics for select sports modes Cons Only three years of software and security updates
Lacks menstrual cycle tracking
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