Fitbit Versa 2 FB507BKBK Fitness Smartwatch with Silicone Band - Black-Carbon - One Size worth to buy? Thanks for it if those of you who have purchased Fitbit Versa 2 FB507BKBK Fitness Smartwatch with Silicone Band - Black-Carbon - One Size could share about what you think of the product. I would love any extra info, as it is quite pricey as $155.00 and I just want to know it is good before paying for it.