Makibes C5 IP67 Water Resistant Smartwatch Fitness Tracker 1.3 inch Blood Pressure color UI Wristban worth to buy? Thanks for it if those of you who have purchased Makibes C5 IP67 Water Resistant Smartwatch Fitness Tracker 1.3 inch Blood Pressure color UI Wristban could share about what you think of the product. I would love any extra info, as it is quite pricey as $51.90 and I just want to know it is good before paying for it.