Fast charging is compatible with Apple Watch Series 7 or later, including all Ultra models. It is not compatible with any Apple Watch SE model.

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Irregular rhythm notification requires the latest version of watchOS and iOS. It is not intended for use by people under 22 years old or those who have been previously diagnosed with atrial fibrillation (AF). Case and strap combinations can be made within collections (Apple Watch and Apple Watch Hermès) only. featured_image": {"alt":"AMP06920","id":25719072751663,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1430,"width":1430,"src":"\/\/www.spigen.com\/cdn\/shop\/products\/title_web_applewatch_shinefit_41mm_02.jpg?v=1699403784"},"aspect_ratio":1.0,"height":1430,"media_type":"image","src":"\/\/www.spigen.com\/cdn\/shop\/products\/title_web_applewatch_shinefit_41mm_02.jpg?v=1699403784","width":1430}, featured_image": "\/\/www.spigen.com\/cdn\/shop\/products\/title_web_applewatch_shinefit_41mm_02.jpg?v=1699403784", featured_media": {"alt":"AFL00922","id":25719105224751,"position":34,"preview_image":{"aspect_ratio":1.0,"height":1430,"width":1430,"src":"\/\/www.spigen.com\/cdn\/shop\/products\/title_web_applewatch_proflexezfit_44mm_01.jpg?v=1699404355"},"aspect_ratio":1.0,"height":1430,"media_type":"image","src":"\/\/www.spigen.com\/cdn\/shop\/products\/title_web_applewatch_proflexezfit_44mm_01.jpg?v=1699404355","width":1430},

featured_media": {"alt":"AMP06920","id":25719072751663,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1430,"width":1430,"src":"\/\/www.spigen.com\/cdn\/shop\/products\/title_web_applewatch_shinefit_41mm_02.jpg?v=1699403784"},"aspect_ratio":1.0,"height":1430,"media_type":"image","src":"\/\/www.spigen.com\/cdn\/shop\/products\/title_web_applewatch_shinefit_41mm_02.jpg?v=1699403784","width":1430}, Case and band combinations can be made within collections (Apple Watch and Apple Watch Hermès) only. featured_media": {"alt":"ACS02224 - Apple Watch Series (Apple Watch (45mm)) Case Rugged Armor in navy blue showing the front","id":25719196024879,"position":34,"preview_image":{"aspect_ratio":1.0,"height":1200,"width":1200,"src":"\/\/www.spigen.com\/cdn\/shop\/products\/title_web_applewatch_8_45mm__ruggedarmor_01_0489c7aa-7967-41f4-9129-09b728121297.jpg?v=1699405707"},"aspect_ratio":1.0,"height":1200,"media_type":"image","src":"\/\/www.spigen.com\/cdn\/shop\/products\/title_web_applewatch_8_45mm__ruggedarmor_01_0489c7aa-7967-41f4-9129-09b728121297.jpg?v=1699405707","width":1200},featured_image": {"alt":"062CS26015 - Apple Watch Series (Apple Watch (45mm)) Case Rugged Armor in olive green showing the front","id":25719195762735,"position":26,"preview_image":{"aspect_ratio":1.0,"height":1200,"width":1200,"src":"\/\/www.spigen.com\/cdn\/shop\/products\/title_web_applewatch_8_45mm__ruggedarmor_01_b4361b7e-1cee-40bd-8eb9-fc9b0ab87fa2.jpg?v=1699405707"},"aspect_ratio":1.0,"heig featured_image": {"alt":"AMP06930 - Apple Watch (41mm)\/Apple Watch (38mm) in etoupe showing the front","id":25719081992239,"position":52,"preview_image":{"aspect_ratio":1.0,"height":1430,"width":1430,"src":"\/\/www.spigen.com\/cdn\/shop\/products\/title_web_apple_watch_8_enzo_band_etoupe.jpg?v=1699404082"},"aspect_ratio":1.0,"height":1430,"media_type":"image","src":"\/\/www.spigen.com\/cdn\/shop\/products\/title_web_apple_watch_8_enzo_band_etoupe.jpg?v=1699404082","width":1430}, Apple Watch Ultra 2, Apple Watch Series 9 and Apple Watch SE require iPhone Xs or later with iOS 17 or later. Refurbishment procedures follow the same basic technical guidelines as Apple's Finished Goods testing procedures.

Blood Oxygen app measurements are not intended for medical use, including self-diagnosis or consultation with a doctor, and are only designed for general fitness and wellness purposes. Apple Certified Refurbished Products are pre-owned Apple products that undergo Apple's stringent refurbishment process prior to being offered for sale. While only some units are returned due to technical issues, every unit is evaluated to ensure it meets Apple's quality standards. Apple Watch devices that require replacement parts are not included in the Apple Certified Refurbished Program.Apple Watch Ultra 2 has a water resistance rating of 100 meters under ISO standard 22810. It may be used for recreational scuba diving (with compatible third-party app from the App Store) to 40 meters and high-speed water sports. Apple Watch Ultra 2 should not be used for diving below 40 meters. Water resistance is not a permanent condition and can diminish over time. For additional information see support.apple.com/en-us/HT205000. featured_media": {"alt":"AGL05556 - Apple Watch Ultra Screen Protector EZ FIT Glas.tR showing the ez fit tray, film, screen protector and watch face","id":25719100145711,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1430,"width":1430,"src":"\/\/www.spigen.com\/cdn\/shop\/products\/detail_web_apple_watch_ultra_glastrezfit_01.jpg?v=1699404191"},"aspect_ratio":1.0,"height":1430,"media_type":"image","src":"\/\/www.spigen.com\/cdn\/shop\/products\/detail_web_apple_watch_ultra_glastrezfit_01.jpg?v=1699404191","width":1430}, featured_image": {"alt":"ACS07382","id":25739758993455,"position":103,"preview_image":{"aspect_ratio":1.0,"height":1430,"width":1430,"src":"\/\/www.spigen.com\/cdn\/shop\/files\/detail_web_apple_watch_ultra_ruggedarmor_navy_blue_07.jpg?v=1700079279"},"aspect_ratio":1.0,"height":1430,"media_type":"image","src":"\/\/www.spigen.com\/cdn\/shop\/files\/detail_web_apple_watch_ultra_ruggedarmor_navy_blue_07.jpg?v=1700079279","width":1430},

Irregular rhythm notification requires the latest version of watchOS and iOS. It is not intended for use by people under 22 years old or those who have been previously diagnosed with atrial fibrillation (AFib).

Apple Watch Series 8

Apple Watch Series 9 has a water resistance rating of 50 meters under ISO standard 22810:2010. This means that it may be used for shallow-water activities like swimming in a pool or ocean. However, Apple Watch Series 9 should not be used for scuba diving, waterskiing, or other activities involving high-velocity water or submersion below shallow depth. Water resistance is not a permanent condition and can diminish over time. For additional information see support.apple.com/HT205000.