Oura - Ring 4 vs RingConn - Gen 2 Smart Ring

The Gen 2 Smart Ring edges ahead on the Mars Score (52.9 vs 57.2), but the 4.3-point gap is small enough that the right pick comes down to which spec advantages matter to you.

Pick the Ring 4 if you care most about sport modes. The biggest gaps in its favor are sport modes.

Pick the Gen 2 Smart Ring if you care most about battery life. Its strongest claims are battery life.

Both ship with comparable gps, spo2, water resistance, so those specs don't separate the two — focus on the differences below.

Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity tells you both are well-rounded; the differences are about trade-offs, not quality.