Versus Engine
Oura Ring 4 vs Oura Ring Gen 3
Specs, price and the one trade-off that actually decides it — Oura Ring 4 against Oura Ring Gen 3, side by side.
Cheaper to start
Oura Ring Gen 3
Starts about $50 lower.
Rated higher
Oura Ring Gen 3
9.5 vs 8.1 on our design scale.
Standout
Oura Ring 4
Best-in-class sleep tracking accuracy
Oura Ring 4
The all-titanium fourth-generation smart ring, from $349 plus a required membership.
Where it wins, where it doesn't
Pros
- Best-in-class sleep tracking accuracy
- Lightweight titanium build
- Excellent battery life
Cons
- Full data access requires a $5.99/month membership on top of the hardware
- Gold and ceramic finishes jump to $499
- Cannot buzz — no haptics, so it tracks rather than tells
Specifications
- sizes4 to 15
- batteryUp to 8 days
- sensors18-path multi-wavelength PPG, temperature, SpO2
- materialTitanium, inside and out
- charge_timeUp to 120 minutes
- subscriptionOura Membership, $5.99/month or $69.99/year
- weight—
- materials—
- connectivity—
- water_resistance—
- temperature_precision—
Oura Ring Gen 3
The finger-worn tracker that made continuous health monitoring socially wearable — with a subscription attached.
Where it wins, where it doesn't
Pros
- Finger-based PPG provides drastically clearer signals than wrist trackers
- NTC thermistors track illness onset via 0.1°C temperature variance
- Titanium shell withstands deep water and extreme elements
Cons
- Full data access locked behind a mandatory monthly subscription
- Bulky form factor on smaller hands
- Lacks real-time vibration or notification haptics
Specifications
- sizes—
- battery15mAh to 22mAh Lipo (Up to 7 days)
- sensorsRed/Green/IR PPG, NTC temperature, 3D accelerometer
- material—
- charge_time—
- subscription—
- weight4g to 6g
- materialsTitanium shell with PVD coating, non-allergenic inner molding
- connectivityBluetooth Low Energy (BLE)
- water_resistanceUp to 100 meters (10 ATM)
- temperature_precision0.1°C variance detection