The newly-announced Apple Watch Series 6 may seem like a modest upgrade from a hardware perspective, but there’s more to it than that new SpO2 blood oxygen monitor.

Apple didn’t make a song and dance about it during its Time Flies event on Tuesday, but the Apple Watch is the first to rock the U1 Ultra Wideband chip. It’s not in the Apple Watch SE and wasn’t within the Series 5.

The presence was revealed during the presentation in a graphic showing all of the Apple Watch Series 6 new features (via The Verge), as well as within the spec sheet on the Apple Store website. 
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