Chargeable D8 Smart Bracelet with Sleep Management Mode and Calls Remote Camera - Silver worth to buy? Thanks for it if those of you who have purchased Chargeable D8 Smart Bracelet with Sleep Management Mode and Calls Remote Camera - Silver could share about what you think of the product. I would love any extra info, as it is quite pricey as $59.66 and I just want to know it is good before paying for it.