Q58S 1.3 inch TFT Touch Screen IP67 Waterproof Smartwatch, Support Call Reminder/ Heart Rate Monitor worth to buy? Thanks for it if those of you who have purchased Q58S 1.3 inch TFT Touch Screen IP67 Waterproof Smartwatch, Support Call Reminder/ Heart Rate Monitor could share about what you think of the product. I would love any extra info, as it is quite pricey as $39.50 and I just want to know it is good before paying for it.