Y5 Smart Band Watch Color Screen Wristband Heart Rate Activity Fitness Tracker Smart Electronics Bra worth to buy? Thanks for it if those of you who have purchased Y5 Smart Band Watch Color Screen Wristband Heart Rate Activity Fitness Tracker Smart Electronics Bra could share about what you think of the product. I would love any extra info, as it is quite pricey as $9.99 and I just want to know it is good before paying for it.