Smart Watch Health and Fitness Smartwatch with Heart Rate, Sleep Tracking,11 Sports Modes Step Track worth to buy? Thanks for it if those of you who have purchased Smart Watch Health and Fitness Smartwatch with Heart Rate, Sleep Tracking,11 Sports Modes Step Track could share about what you think of the product. I would love any extra info, as it is quite pricey as $53.99 and I just want to know it is good before paying for it.