Apple unveiled Apple Watch Series 12 and Apple Watch Ultra 4 on September 9 with a new Health Sensing System powered by the S11 chip, positioning both watches as deeper everyday health tools rather than just fitness trackers, 9to5Mac and Apple Newsroom reported.<\/p>\n
The upgraded optical system measures heart rate about every five seconds \u2014 a 60\u00d7 jump versus prior models, per 9to5Mac \u2014 and takes heart-rate variability readings about every five minutes. Apple says the hardware delivers its most accurate wearable heart-rate sensing yet and feeds a new readiness score based on activity, vitals, and sleep. Series 12 starts at $399; Ultra 4 starts at $799, with preorders open and availability beginning Friday, September 18. Series 12 aluminum models gain Ceramic Shield 2 and optional ceramic finishes; Ultra 4 adds longer outdoor-workout battery life, Apple said.<\/p>\n
Both watches also get Audio Intelligence features later this year (sound recognition and a Live Rewind transcript of the prior 15 seconds) and Siri AI on watchOS 27. A redesigned Health app with longevity insights is planned for later this year on iPhone.<\/p>\n
Sources:<\/strong> 9to5Mac<\/a>; Apple Newsroom (Ultra 4)<\/a>; Apple Newsroom (Series 12)<\/a><\/p>\n","protected":false},"excerpt":{"rendered":" New Health Sensing System, readiness score, and S11 chip \u2014 preorders open, ships Sept. 18<\/p>\n","protected":false},"author":1,"featured_media":168,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[1],"tags":[],"class_list":["post-172","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/bugleblast.com\/wp-content\/uploads\/2026\/09\/bb-apple-watch-health-0913.jpg","_links":{"self":[{"href":"https:\/\/bugleblast.com\/index.php?rest_route=\/wp\/v2\/posts\/172","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bugleblast.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bugleblast.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bugleblast.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bugleblast.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=172"}],"version-history":[{"count":0,"href":"https:\/\/bugleblast.com\/index.php?rest_route=\/wp\/v2\/posts\/172\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bugleblast.com\/index.php?rest_route=\/wp\/v2\/media\/168"}],"wp:attachment":[{"href":"https:\/\/bugleblast.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=172"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bugleblast.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=172"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bugleblast.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=172"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}