GPS + Cellular Optical heart sensor Digital Crown S3 with dual-core processor Accelerometer and gyroscope Swimproof watchOS 5 Aluminum case Nike Sport Band Exclusive Nike watch faces Selection may vary; see a sales associate for available models. Apple Watch Series 3 (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. ISO standard 22810:2010. Appropriate for shallow-water activities like swimming. Submersion below shallow depth and high-velocity water activities not recommended.