Bluetooth Smart Watch for IOS Android Men Women Sport Intelligent Pedometer Fitness Bracelet Watches worth to buy? Thanks for it if those of you who have purchased Bluetooth Smart Watch for IOS Android Men Women Sport Intelligent Pedometer Fitness Bracelet Watches could share about what you think of the product. I would love any extra info, as it is quite pricey as $15.99 and I just want to know it is good before paying for it.