F18 0.96 inch TFT Color Screen Metal Watch Strap Smart Bracelet, Support Call Reminder/ Heart Rate M worth to buy? Thanks for it if those of you who have purchased F18 0.96 inch TFT Color Screen Metal Watch Strap Smart Bracelet, Support Call Reminder/ Heart Rate M could share about what you think of the product. I would love any extra info, as it is quite pricey as $39.70 and I just want to know it is good before paying for it.