- The R4 polar controller is a multifunctional RFID radio frequency ring. Built-in IC and ID module can be used to replace access cards, parking cards, membership cards, consumer cards and other radio frequency cards; The built-in NFC module can be used to realize virtual incoming calls, location notifications, business card sharing, memo sharing and other special cloud services.
- Smart rings may be the next big thing in the wearables market and we just received the Ring Air to see how it stacks up against the established smartwatches and smartbands. This is the lightest smart ring currently on the market ranging between 2-3 grams depending on the size you pick and it’s just 2.4mm thick – a lot less intrusive than a chunky smartwatch.
