Steel NTAG216 NFC ring
Stainless steel
A stainless steel ring with a programmable NTAG216 chip.
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Ultrahuman Ring PRO in bionic gold
Titanium
A titanium smart ring that tracks sleep, recovery, and heart rate for up to 15 days on a charge, or up to 45 days with the included case. No app subscription. Size it with Ultrahuman's sizing kit first.
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RingConn Gen 2 Air smart ring in gold
A 2mm-thin smart ring that tracks sleep, heart rate, and activity for up to 10 days on a charge. No subscription for standard features. Size it with RingConn's sizing kit first.
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RingConn Gen 3 smart ring in royal gold
A smart ring that tracks sleep, heart rate, and activity, with gentle vibration alerts and up to 14 days of battery life. No subscription required. Size it with RingConn's sizing kit first.
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NFC smart ring
A no-charge ring with an NFC chip for phone taps.
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Stainless steel NFC ring
Stainless steel
A white-and-gold steel ring with an NFC chip a phone can read. Check sizes on Amazon.
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RingConn Gen 2 smart ring in gold
A smart ring that tracks sleep, heart rate, and activity for up to 10–12 days on a charge, and it's water resistant to 100 meters. No subscription fees. Size it with RingConn's sizing kit first.
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RENPHO Lynx smart ring in silver
Titanium exterior
A titanium smart ring that tracks sleep, steps, and heart rate for 7 days on a charge, with a charging case for travel. No subscription fees. Size it with RENPHO's sizing kit first.
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Prices change. Last checked October 3, 2026.
Guides
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