LENS MATERIAL: Power Glass, BEZEL MATERIAL: Fibre-reinforced polymer, CASE MATERIAL: Fibre-reinforced polymer, QUICKFIT WATCH BAND COMPATIBLE: Yes (20 mm), STRAP MATERIAL: Silicone, DISPLAY RESOLUTION: 156 x 156 pixels (active area), WEIGHT: 43 g, WATER RATING: 10 ATM, MEMORY/HISTORY: 32 MB, Warranty: 01 Year Limited Warranty. This rugged, solar charging GPS smartwatch is tough enough to keep up with you and unique enough to fit your style. Now it comes in two sizes to fit every wrist.