Nubia Bluetooth International 4.01" AMOLED Foldable Flexible Wraparound Smartwatch with AIR Interact worth to buy? Thanks for it if those of you who have purchased Nubia Bluetooth International 4.01" AMOLED Foldable Flexible Wraparound Smartwatch with AIR Interact could share about what you think of the product. I would love any extra info, as it is quite pricey as $429.99 and I just want to know it is good before paying for it.