DM88 Smart Bluetooth Watch 1.22" IPS Full View Touch Screen Wristwatch Heart Rate Sleep Monitor Pedo worth to buy? Thanks for it if those of you who have purchased DM88 Smart Bluetooth Watch 1.22" IPS Full View Touch Screen Wristwatch Heart Rate Sleep Monitor Pedo could share about what you think of the product. I would love any extra info, as it is quite pricey as $59.00 and I just want to know it is good before paying for it.