G19 0.96inch TFT Color Screen Display Bluetooth Sports Smart Bracelet, IP67 Waterproof, Support Bloo worth to buy? Thanks for it if those of you who have purchased G19 0.96inch TFT Color Screen Display Bluetooth Sports Smart Bracelet, IP67 Waterproof, Support Bloo could share about what you think of the product. I would love any extra info, as it is quite pricey as $28.70 and I just want to know it is good before paying for it.