Amazfit Active , Screen 1.75" , Display technology AMOLED , Resolution 390 x 450 , Wireless connections Bluetooth , Memory 250MB , Material Silicone rubber , GPS , Material housing Aluminium , Colour Midnight Black , Battery capacity 300 mAh , Operating System Zepp OS , Dimensions 42.36x35.9x10.75mm , Weight 0.024 kg