Versus Engine
Circular Ring 2 vs RingConn Gen 2
Specs, price and the one trade-off that actually decides it — Circular Ring 2 against RingConn Gen 2, side by side.
Cheaper to start
RingConn Gen 2
Starts about $50 lower.
Rated higher
Circular Ring 2
8.8 vs 8.7 on our design scale.
Standout
Circular Ring 2
Native ECG sensor for AFib detection
Circular Ring 2
A smart ring with native ECG and no subscription, aimed at the European market.
Where it wins, where it doesn't
Pros
- Native ECG sensor for AFib detection
- No subscription — a saving that compounds over years
- Haptic notifications on the ring itself
Cons
- Finish and industrial design trail the Oura Ring 4
- Data interpretation less mature than Oura's
- Global support network still being established
Specifications
- Charging30 minutes, wireless case
- Battery8 days power mode, 5 days performance
- Compatiblity—
- ComplianceGDPR and HIPAA
- Connectivity—
- MaterialTitanium, hypoallergenic interior
- Materials—
- Offline Storage—
- SensorsECG, PPG, temperature, 3-axis accelerometer
- Size2.55 mm thick, 7.8 mm wide, 3 g
- SizesUS 6-14
- Thickness2.55 mm
- Water ratingIP68
- Waterproof—
- Weight3 g
- Weight & Dimensions—
- Working Temperature—
RingConn Gen 2
A $299 subscription-free smart ring built to outlast the Oura on battery.
Where it wins, where it doesn't
Pros
- No subscription — dramatically lower cost over three years
- Battery life exceeds the Oura, so it gets worn more consistently
- Straightforward entry price at $299
Cons
- App is a readout rather than an interpretation layer
- Ecosystem and third-party integrations thinner than Oura's
- Build finish a step below the category leaders
Specifications
- ChargingMagnetic charging; approx. 90 minutes to full charge
- Battery—
- CompatiblityiOS 17.0+, Android 10.0+, Bluetooth 4.0 and above
- Compliance—
- ConnectivityBluetooth 5.0; low power bluetooth module
- Material—
- MaterialsTitanium Alloy, PVD Coating, Medical-Grade Epoxy Resin
- Offline Storage5–7 days
- Sensors—
- Size—
- Sizes—
- Thickness—
- Water rating—
- WaterproofIP68 (100m/328ft)
- Weight—
- Weight & DimensionsWidth: 6.8mm Thickness: 2mm Weight: 2–3g (depending on ring size)
- Working Temperature0°C–40°C/32°F–104°F