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Fashion Men's Ring Magic Wear NFC Smart Ring Finger Digital Ring for Android phones with functional couple stainless steel ring|Rings| - AliExpress
NFC Multifunctional Waterproof Digital Smart Android Rings Finge A0S2 | eBay
/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer/28/54/28548ef3-d77d-4a8a-b940-589415b603ae/smartring.jpg "Forget Bulky Smart Watches, Slip On a Smart Ring | Innovation| Smithsonian Magazine")
Forget Bulky Smart Watches, Slip On a Smart Ring | Innovation| Smithsonian Magazine
