{"data":{"slug":"apple-watch-ultra-4","type":"smartwatch","brand":"Apple","name":"Watch Ultra 4","aliases":["Apple Watch Ultra 4","Watch Ultra 4","A3579"],"release_date":"2026-09-18","url":"https://arkivo.dev/smartwatches/apple-watch-ultra-4","specs":{"series":"Apple Watch 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weight. Natural 63.0 grams, black 63.1 grams","water_resistance_atm":"Published as water resistance 100m under ISO 22810:2010. 100 m is 10 ATM","dive_rating":"EN13319 recreational scuba diving to 40m (±1m accuracy)","mil_std_810":"Tested to MIL-STD 810H","cpu_core_count":"S11 chip with 64-bit dual-core processor","barometer":"Published as Always-on altimeter","accelerometer":"Published as High-g accelerometer","health_features":"temperature_based_ovulation from 'retrospective ovulation estimates' with the temperature sensor. readiness_score from the Readiness app","external_sensor_types":"Bluetooth-compatible with power meters","positioning":"Published as Precision dual-frequency GPS (GPS, Galileo, QZSS, and BeiDou)","bands_4g":"FDD-LTE 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 66, 71. TDD-LTE 38, 39, 40, 41, 53. Model A3579","bands_5g":"FDD-5G NR n1, n2, n3, n5, n7, n8, n12, n14, n20, n25, n26, n28, n66, n71. TDD-5G NR n38, n40, n41, n53. RedCap","satellite_connectivity":"Satellite communications (Emergency SOS, Messages, Find My). Provided by Globalstar","speaker":"Dual speakers","button_count":"Action button and side button. Digital Crown not counted","charger_in_box":"In the box lists only the charging cable","variants":"Natural titanium case: 63.0 g. Black titanium case: 63.1 g. A3579 and A3580 identities and finishes are verified separately by Identify your Apple Watch.","microphone_count":"Hardware/Audio section identifies the microphone, or the three-microphone array for Ultra 4.","charge_time_0_80_min":"Power and Battery Life, charge footnote: included fast charger cable, Apple 20W USB-C power adapter. Approximate maker time.","quick_charge":"Power and Battery Life: normal-use hours from a short charge. Sleep-only charging claim is a different workload.","water_resistance_standard":"Durability and footnotes.","hardware_buttons":"User control buttons only. Digital Crown and band-release buttons excluded.","battery_life_claimed":"Power and Battery Life: normal workout 18 h, Extended Workout 25 h, Max Extended Workout 45 h. Footnote specifies outdoor run/walk/hike without iPhone and with HR on. These are not reviewer measurements.","heart_rate_sensor":"Sensors > Health Sensing System: exact optical sensor name. Electrical sensor generation is separate.","band_sizes":"Size and Weight: Fits stated wrist circumference. This is an overall case-compatible wrist range, not one supplied strap size. No maker size label is published.","operating_temperature_c":"Environmental Requirements > Operating temperature: 0 to 35 C. Separate on-wrist operating range is -20 to 55 C and dive operating range is 0 to 40 C.","case_shape":"Rounded rectangular outline observed in the model-labeled In the Box manufacturer illustration. Geometry classification only, not a size or material inference.","fitness_features":"Maker confirms offline maps, custom routes and Backtrack, but the read spec does not explicitly establish turn-by-turn guidance. That unsupported feature member is removed."}},{"url":"https://www.apple.com/apple-watch-ultra-4/","kind":"manufacturer_page","accessed":"2026-09-30","fields":["manufacturer_url","calls_on_watch","nfc","touchscreen"],"notes":{"calls_on_watch":"Text and talk over 5G without iPhone","nfc":"Apple Pay contactless payments","touchscreen":"Tap gestures and touch-based controls on the display"}},{"url":"https://www.apple.com/newsroom/2026/09/apple-unveils-apple-watch-ultra-4/","kind":"press_release","accessed":"2026-09-30","fields":["announce_date","release_date","markets","os_at_launch","series","segment","launch_price_usd"],"notes":{"markets":"Pre-order in Australia, Canada, France, Germany, India, Japan, the UAE, the UK, the U.S. and more than 50 other countries. CN from the China mainland model number","segment":"Apple calls it the ultimate sports and adventure watch","release_date":"Availability beginning Friday, September 18","launch_price_usd":"Pricing and Availability: starting US launch price."}},{"url":"https://support.apple.com/en-us/108056","kind":"manufacturer_page","accessed":"2026-10-08","fields":["model_numbers","back_material","variants"],"notes":{"model_numbers":"Apple Watch Ultra4:49mm A3579 covers North America, Europe and Asia Pacific, including the Japanese review market. A3580 covers China mainland. No Chinese regional test is claimed.","back_material":"Sapphire crystal, Retina display, and ceramic back"}},{"url":"https://www.apple.com/shop/buy-watch/apple-watch-ultra","kind":"manufacturer_page","accessed":"2026-09-30","fields":["status","compatible_phone_os"],"notes":{"compatible_phone_os":"Apple Watch is only compatible with iPhone"}},{"url":"https://www.apple.com/legal/warranty/products/warranty-us.html","kind":"manufacturer_page","accessed":"2026-09-30","fields":["warranty_years"],"notes":{"warranty_years":"US: Apple One (1) Year Limited Warranty"}},{"url":"https://www.gsmarena.com/apple_watch_ultra_4-14935.php","kind":"spec_database","accessed":"2026-09-30","fields":["screen_size_in"],"notes":{"screen_size_in":"1.98 inches. DC Rainmaker's review also states 1.98 inch"}},{"url":"https://www.macrumors.com/2026/09/10/apple-watch-series-12-ultra-4-increased-ram/","kind":"press","accessed":"2026-09-30","fields":["ram_gb"],"notes":{"ram_gb":"4GB according to Apple's developer tool Xcode 27"}},{"url":"https://support.apple.com/en-gb/guide/watch/welcome/27/watchos/27","kind":"manual","accessed":"2026-09-30","fields":["manual_url","third_party_apps"],"notes":{"manual_url":"watchOS 27 user guide. Models covered include this watch.","third_party_apps":"App Store section: install apps on Apple Watch."}},{"url":"https://www.apple.com/uk/watch/battery/","kind":"manufacturer_page","accessed":"2026-09-30","fields":["charge_time_0_100_min"],"notes":{"charge_time_0_100_min":"Model-specific Charge section. Approximate claim, included fast charging cable with Apple 20W USB-C adapter. Series 12 says about one hour, SE 3 and Ultra 4 about 75 minutes."}},{"url":"https://images.apple.com/de/newsroom/2026/09/apple-unveils-apple-watch-ultra-4/","kind":"press_release","accessed":"2026-09-30","fields":["launch_price_eur"],"notes":{"launch_price_eur":"Pricing and Availability: starting EUR price including German VAT."}},{"url":"https://support.apple.com/en-us/100100","kind":"manufacturer_page","accessed":"2026-09-30","fields":["os_latest"],"notes":{"os_latest":"Get the latest software updates: latest watchOS is 27.0.1, expanded September 28. SE 3 eligibility is also explicitly confirmed in 9to5Mac September 28 coverage."}},{"url":"https://www.gigazine.net/gsc_news/en/20260927-apple-watch-ultra-4-review/","kind":"review_site","accessed":"2026-10-08","fields":["measured_charge_time_min"],"notes":{"measured_charge_time_min":"Reviewer timed a 49 mm GPS+Cellular Ultra 4 in Japan from discharged 0% with the watch powered off to 100%, using the included charging cable and Apple 20 W USB-C power adapter. Published approximately 1 hour 45 minutes, exactly converted to 105 minutes with the approximate qualifier retained. Firmware, ambient temperature and optimized-charging settings are not stated. Asia-Pacific hardware is A3579 per Apple identification. This is an observed test sample, not the maker about 75 minute claim. Partial-discharge endurance observations in the review are excluded."}},{"url":"https://www.techradar.com/health-fitness/smartwatches/apple-watch-ultra-4-vs-apple-watch-ultra-3-whats-changed-and-should-you-upgrade","kind":"review_site","accessed":"2026-10-23","fields":["predecessor"],"notes":{"predecessor":"TechRadar calls the Apple Watch Ultra 3 the previous gen of the Apple Watch Ultra 4."}},{"url":"https://www.macrumors.com/2026/09/16/apple-watch-ultra-3-vs-ultra-4/","kind":"press","accessed":"2026-10-23","fields":["predecessor"],"notes":{"predecessor":"MacRumors says the Apple Watch Ultra 4 improves on its predecessor and notes the Ultra 3 launched last year."}}],"fields_filled":107,"updated":"2026-10-23"},"meta":{"api_version":"1","docs":"https://arkivo.dev/api"}}