Featuresr silicone tpu bracelet stuff with 042inch oled screen displayr dialog da14580 cpu processor higher performance safety and stabler blutooth v40 working range up to 10 metersr ip54 life waterproof good water resistantr 60mah large lithium ion battery capacity long standby timer low consumption and long standbyr only compatible with android os devices like tablets and smartphonesr support pedometer calories heart rate sleep monitor call reminder distance alarm clock