Brand Apple Compatible Devices Watch Connectivity Technology Gps Case Material Aluminum Supported Application GPS GPS True About this item Always-on Retina display has nearly 20% more screen area than Series 6, making everything easier to see and use The most crack-resistant front crystal yet on an Apple Watch, IP6X dust resistance, and swimproof design Measure your blood oxygen with a powerful sensor and app AppleCare+ for Apple Watch extends your coverage with additional service and support for one year from your AppleCare+ purchase date 24/7 priority access to technical support offers troubleshooting for Apple Watch, watchOS, and Apple-branded Watch apps Express Replacement Service provides a replacement before you return your device