B7pro Fashion Fitness Smart Watch Band IP67 Waterproof Sport Smartwatch Activity Step Counter GPS Tr worth to buy? Thanks for it if those of you who have purchased B7pro Fashion Fitness Smart Watch Band IP67 Waterproof Sport Smartwatch Activity Step Counter GPS Tr could share about what you think of the product. I would love any extra info, as it is quite pricey as $23.99 and I just want to know it is good before paying for it.