[{"data":1,"prerenderedAt":123},["ShallowReactive",2],{"product-detail:en:apple-watch-ultra-4":3},{"id":4,"name":5,"familyId":6,"branchId":7,"announcedAt":8,"year":9,"narrativeWeight":10,"signature":11,"predecessorId":12,"positioningReferenceIds":13,"architecturalAncestorIds":15,"peerIds":16,"technologyIds":17,"deltas":18,"technologies":95,"sourceRefs":96,"specVariants":97,"specs":100,"specSource":118},"apple-watch-ultra-4","Apple Watch Ultra 4","apple-watch","ultra","2026-09-09",2026,"major","The Health Sensing System and S11 chip join the rugged Ultra branch, delivering 50-hour multiday battery life, 45-hour Max Extended Workout tracking, daily Readiness scoring, and privacy-first Audio Intelligence.","apple-watch-ultra-3",[14],"apple-watch-series-12",[],[14],[],[19,30,36,42,48,55,60,67,72,77,82,89],{"id":20,"baselineProductId":12,"type":21,"category":22,"headline":23,"summary":24,"significance":25,"sourceRefs":26},"apple-watch-ultra-4-health-sensing-system","introduced","ports","Health Sensing System","Re-architected optical and electrical heart sensing subsystem adapted for extreme sports and outdoor conditions, measuring heart rate passively every 5 seconds continuously throughout the day.","defining",[27,28,29],"src-watch-ultra4-2026","src-watch-series12-2026","src-airpods-get-ready-to-experience-iphone-18-pro-the-new-apple-watch-lineup-and-air",{"id":31,"baselineProductId":12,"type":21,"category":32,"headline":33,"summary":34,"significance":25,"sourceRefs":35},"apple-watch-ultra-4-high-frequency-dual-metric-hrv-and-readiness-score","design","High-frequency dual-metric HRV and Readiness score","Samples HRV up to 24 times more frequently, delivering distinct Recovery HRV and Overall HRV metrics synthesized into a continuous, real-time Readiness score.",[27,28,29],{"id":37,"baselineProductId":12,"type":21,"category":38,"headline":39,"summary":40,"significance":25,"sourceRefs":41},"apple-watch-ultra-4-max-extended-workout-mode","storage","Max Extended Workout mode","Ultra-endurance workout mode providing up to 45 hours of outdoor running, walking, or hiking tracking — sufficient for a 100-mile ultramarathon race — while continuing to record GPS location once every second.",[27,28,29],{"id":43,"baselineProductId":12,"type":21,"category":44,"headline":45,"summary":46,"significance":25,"sourceRefs":47},"apple-watch-ultra-4-s11-sip-with-secure-exclave","silicon","S11 SiP with Secure Exclave","Most powerful wearable chip featuring a hardware-isolated Secure Exclave compartment for secure, ephemeral audio processing.",[27,28,29],{"id":49,"baselineProductId":12,"type":21,"category":50,"headline":51,"summary":52,"significance":53,"sourceRefs":54},"apple-watch-ultra-4-audio-intelligence-suite","input","Audio Intelligence suite","Integrates Sound Recognition (alerts for sirens, alarms, doorbells, crying babies), Live Rewind (15-second conversation transcription via double-press of the Digital Crown), and Siri Recap conversation summaries.","meaningful",[27,28,29],{"id":56,"baselineProductId":12,"type":21,"category":32,"headline":57,"summary":58,"significance":53,"sourceRefs":59},"apple-watch-ultra-4-apple-watch-herm-s-ultra-4-edition","Apple Watch Hermès Ultra 4 edition","(minor): First Hermès edition created specifically for the Ultra line, featuring an exclusive titanium nautical buckle and marine-inspired bands.",[27,28,29],{"id":61,"baselineProductId":12,"type":62,"category":63,"headline":64,"summary":65,"significance":25,"sourceRefs":66},"apple-watch-ultra-4-everyday-multiday-battery-life-extended-to-50-hours","changed","power","Everyday multiday battery life extended to 50 hours","Normal battery life increased from 42 hours (Ultra 3) to up to 50 hours (more than two full days).",[27,28,29],{"id":68,"baselineProductId":12,"type":62,"category":63,"headline":69,"summary":70,"significance":53,"sourceRefs":71},"apple-watch-ultra-4-low-power-mode-battery-extended-to-84-hours","Low Power Mode battery extended to 84 hours","Extended runtime in Low Power Mode increased from 72 hours to up to 84 hours (3.5 days).",[27,28,29],{"id":73,"baselineProductId":12,"type":62,"category":63,"headline":74,"summary":75,"significance":53,"sourceRefs":76},"apple-watch-ultra-4-extended-workout-mode-battery-extended-to-25-hours","Extended Workout mode battery extended to 25 hours","Continuous workout tracking with full GPS and heart rate in Extended Workout mode increased by 25 percent (from 20 hours to 25 hours).",[27,28,29],{"id":78,"baselineProductId":12,"type":62,"category":63,"headline":79,"summary":80,"significance":53,"sourceRefs":81},"apple-watch-ultra-4-fast-charging-speed","Fast charging speed","15 minutes of fast charging provides up to 18 hours of battery life.",[27,28,29],{"id":83,"baselineProductId":12,"type":84,"category":85,"headline":86,"summary":87,"significance":25,"sourceRefs":88},"apple-watch-ultra-4-two-way-satellite-communications","retained","software","Two-way satellite communications","Emergency SOS via satellite, Find My via satellite, and Messages via satellite included free for two years (carried over from Ultra 3).",[27,28,29],{"id":90,"baselineProductId":12,"type":84,"category":91,"headline":92,"summary":93,"significance":53,"sourceRefs":94},"apple-watch-ultra-4-49mm-aerospace-grade-titanium-enclosure","display","49mm aerospace-grade titanium enclosure","Retains Natural and Black Titanium 49mm chassis, flat sapphire front crystal, 3,000 nits display, 100m water resistance, 40m recreational dive gauge, and customizable Action button.",[27,28,29],[],[27,28,29],[98],{"id":4,"label":99,"specs":100,"source":113,"verificationSource":118},"default",{"cpu":101,"cores":102,"memory":103,"storage":104,"display":105,"gpu":106,"ports":107,"weight":108,"dimensions":109,"operatingSystem":110,"released":111,"discontinued":103,"launchPrice":112},"Apple S11 SiP","2","—","64 GB","49 mm LTPO3 always-on OLED, 422×514, 3000 nits","Integrated","Magnetic fast charging, Action Button","63 g","49×44×12 mm titanium case","watchOS 27","September 18, 2026","$799",{"name":114,"url":115,"retrievedAt":116,"note":117},"One Infinite Fruit","https:\u002F\u002Foneinfinitefruit.com\u002Fdevice\u002Fapple-watch-ultra-4\u002F","2026-09-14","secondary-structured-specs",{"name":119,"url":120,"retrievedAt":121,"note":122},"Apple unveils Apple Watch Ultra 4","https:\u002F\u002Fwww.apple.com\u002Fnewsroom\u002F2026\u002F09\u002Fapple-unveils-apple-watch-ultra-4\u002F","2026-09-13","first-party-verification",1789955611517]