RingConn Gen 2 Air

The RingConn Gen 2 Air is a 2.5 g, subscription-free smart ring with a 10-day battery and full sleep and heart tracking - minus the Gen 2's apnoea mode.

4.1 / 5

★★★★★ ★★★★★ Highly recommended

Strengths

Featherweight at 2.5–4 g - easy to forget you are wearing it
No subscription: every metric is included with the hardware
Up to 10-day battery life, far ahead of most smartwatches

Watch outs

Drops the standard Gen 2's sleep apnoea monitoring
Charges on a desk dock rather than the Gen 2's portable case
Companion app lacks the polish of Oura and Ultrahuman

Buy on Amazon UK

Form factor Smart ring with magnetic charging dock
Material "Titanium steel" (PVD-coated stainless alloy), medical-grade epoxy resin inner
Weight 2.5 – 4 g depending on size
Profile 2 mm thick, 6.8 mm wide

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RingConn Gen 2 Air smart ring worn on a finger

Research-based verdict We have not yet handled this ring ourselves. This review is compiled from the manufacturer's published specifications, independent validation studies, and aggregated owner reviews - and we say so wherever a claim depends on them. See our methodology for exactly how we work.

Read our review - we rated it 4.1/5

By Rob Griffiths1 min read

Form factor: Smart ring with magnetic charging dock
Material: "Titanium steel" (PVD-coated stainless alloy), medical-grade epoxy resin inner
Weight: 2.5 – 4 g depending on size
Profile: 2 mm thick, 6.8 mm wide
Sizes: US 6 – 14 (free sizing kit)
Finishes: Dune Gold, Galaxy Silver
Sensors: PPG heart rate, SpO2, skin temperature, respiratory rate, accelerometer
Water resistance: IP68 (100 m / 328 ft)
Battery life: Up to 10 days typical
Charge time: ≈ 90 minutes (magnetic dock)
Connectivity: Bluetooth 5.0
App support: iOS 14+, Android 8+
Subscription: None - all features included with hardware
Notable omission: No sleep apnoea monitoring (the standard Gen 2 has it)
Launch price: £239 / $199
Pricing as of: June 2026