Stainless steel case and rubber strap. MICLOCK: The Mission’s patent pending MicLock lets you take all its Android capabilities in the water with you, without any of the worries. SHOCK RESISTANT: Super durable 48 mm poly carbonate case, HEAVY DUTY CRYSTAL: Ultra-tough Corning Gorilla Glass built to resist the elements. 48 mm to 52 mm Wide, Full color, Full round 1.39" 400 x 400 AMOLED, with Ambient Light Sensor. 23 mm custom molded dual layer silicone band patented locking looper, and stainless steel buckle with screw bar connection. Water resistance to 100 meters/ 330 feet. with groundbreaking water resistant capabilities, The Mission has the highest waterproof rating of any smartwatch on the market.