A man pays in a cafe using an electronic smart watch

wearable computer smart watch wrist contactless payment portable information device device screen technology human hand wireless technology point of sale paying modern film - moving image hand health technology near field communication 1080p radio frequency identification time consumerism cafe electronics industry equipment hd format table banking order customer intelligence retail close-up communication human joint finance and economy touching checkout horizontal exchanging white people non us film location watching buying russia restaurant business medical equipment people females store beak station human body part currency healthcare and medicine medical scan lifestyles agricultural field