GoKawiilApple Watch Series 12 and Ultra 4 add new Health Sensing System, minor redesign
Apple's latest Watch Series 12 and Ultra 4 keep familiar shapes but introduce a new underlying Health Sensing System aimed at improving health tracking accuracy. The Series 12 gets a roughly 2% smaller display area, a slightly wider case, Ceramic Shield 2 glass on aluminum models, and four new aluminum finishes including Dark Bronze and Light Gold. Ultra 4 retains its titanium build in Natural and Black finishes.