ItIt is use an independent phone-if put SIM card in the watch,you can make phone call directly from the smart phone , including answering and dial-up.
if not put SIM Card,you can connect watch with phone by bluetooth, then you can make phone call, including answering and dial- up.
MOSTof the feature is what you are seeing under the pictures.
plus free S530 bluetooth headset
Condition: Brand New