I have bought Intex Fitrist pulzz from flipkart and using it for about six monts, it is a ok product for the price you pay but not accurate in readings. The wendor did not provide the free extra straps, some customers got them but others don't.
The built quility is ok but the screws got rusty, battery life is good and gives you more than 5 days backup. Also the heart rate monitor readings are not accurate. It gives different readings within a minit.