There is no instruction how to use the app. I downloaded a few on my iPhone X and Android and the ring didn't work. Download nfc tool and jakcom and smart ring others and nothing works on my iphone or my androir.
π Smart Ring: Wireless Charging, Waterproof & Universal Wear - NFC Magic Device for Mobile Phones (Size 11)
3 Review
π Smart Social NFC Tag: Wallet-Sized Digital Business Card for Instant Contact & Social Media Sharing, No App or Fees, iOS & Android Compatible (Aqua)
4 Review
Social Master Digital Business Card Plastic Wallet Sized NFC Tag For Instant Contact And Social Media Sharing No App Required No Fees IOS And Android Compatible (Black)
3 Review
Oumij Multi Function Wearable Universal Operation
3 Review
Blue/Black Replacement Bands for Garmin π Forerunner 920XT: Enhance Your Fitness Tracking Experience!
6 Review
Neitooh 4 Packs Bands for Fitbit Versa/Versa 2 - Soft Silicone Replacement Wristbands for Women and Men
3 Review
π Silicone Secure Rings: Replacement Connectors for Garmin Forerunner 220 235 230 35 745 620 630 735XT Bands and Approach S20 S60 S10 S5 S6 Smartwatch - Black
8 Review
Neitooh Fitbit Versa Bands: 4-Pack Classic Soft Silicone Sport Straps for Women and Men - Small Size (Black/White/Sand Pink/Lavender)
3 Review