Apple Watch 42mm Stainless Steel Case - Space Black Milanese Loop Band Ceramic back, Digital Crown, Speaker and microphone Black Leather Band, 8GB Internal Storage (2GB Dedicated to Music) Water resistant (splash and water resistant but not waterproof) Heart rate sensor, accelerometer, and gyroscope, Up to 18 hours of battery life Stainless steel case, Retina display with Force Touch, Wifi, Bluetooth