Product Details:

• Stainless steel case
• Sapphire crystal
• Retina display with Force Touch
• Ceramic back
• Digital Crown
• Heart rate sensor, accelerometer, and gyroscope
• Ambient light sensor
• Speaker and microphone
• Wi-Fi (802.11b/g/n 2.4GHz)
• Bluetooth 4.0
• Up to 18 hours of battery life*
• Water resistant