Featuresaltitude meter answer call sleep tracker passometer languagesrussian spanish german french english danish czech arabic dutch italian portuguese bluetooth versionv30 capacity mah350 materialmetal genuine leather 2ggsm 8509001800mhz gsm 9001800 mhz gsm 90018001900mhz sim card typesim card connectivitybluetooth40 bluetooth30 bluetooth20 camera2 mp fitness wellnessstopwatch sleep tracker activity tracker exercise reminder sedentary reminder find my devic