1GB = 1 billion bytes; actual formatted capacity less.

Battery life varies by use and configuration; actual results will vary. See www.apple.com/hk/en/batteries and www.apple.com/hk/en/watch/battery.html for more information.

Apple Watch Series 4 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 4 should not be used for scuba diving, waterskiing, or other activities involving high-velocity water or submersion below shallow depth.

Leather and stainless steel bands are not water resistant.

Hermès Sport Band: Clean pin with a damp cloth after exposure to salt water or sweat. Some bands are sold separately. Some features are not available in all regions or all languages. Apple Watch Series 4 (GPS + Cellular) requires an iPhone 6 or later with iOS 12 or later. Wireless service plan required for cellular service. Apple Watch and iPhone service provider must be the same. Not all service providers support enterprise accounts; check with your employer and service provider. Roaming is not available outside your carrier network coverage area. Contact your service provider for more details. Check www.apple.com/hk/en/watch/cellular for participating wireless carriers and eligibility.

To learn more about wearing Apple Watch, getting a good fit, potential skin sensitivity, and proper care and cleaning, click here.