DOOGEE S1 1.54" IPS Android 4.4 3G Watch Phone(OTA,ROM 4GB,BT4.0,FM) Brand:DOOGEE Model:S1 Type:Smart Watch 2G:GSM(850/900/1800/1900MHz) Any question, drop us a line and we will try our best to help. Please kindly do not leave any neutral or negative feedback before contacting us. Thank you.