DTNO.1 S10 1.3 inches TFT Color Screen Smart Bracelet IP68 Waterproof, Steel Watchband, Support Call worth to buy? Thanks for it if those of you who have purchased DTNO.1 S10 1.3 inches TFT Color Screen Smart Bracelet IP68 Waterproof, Steel Watchband, Support Call could share about what you think of the product. I would love any extra info, as it is quite pricey as $47.10 and I just want to know it is good before paying for it.