Bingo T30 is popular as cheapest smart watch. and also the worst watch ever. its camera quality is discusting you cant even see your own face. Its touch sensoors are very poor to detect your finger on the perticular area you touch. battry backup is very less, maximun 1 hour. when you attain any call the caller voice is very low to hear. many times SIM card detecting problem. and memory card also not detect.
so according to my opinion you should not buy this watch in any cost. it is totally money wasting product.