I have purchased from flipkart before 3 months. it is using just simple watch. there are many featurs but u cant use it. Synchronisation problem with mobile. If u connect with ur mobile then it runs for only 3 hours. there is no battery inside. Just a capacitor for power recharge. But touch is smoothe and screen clearity is enough as its prize. padometer is not work accurate. Dont waste money for this product. No sim slot.