Both are subscription-free rings with long batteries, so this is a value-vs-features decision, not a subscription argument. The Ultrahuman Ring Pro is the premium option — on-ring processing, richer metrics, ~15-day battery, $479. The RingConn Gen 2 is the value champion — solid tracking, a ~12-day battery and no subscription for about half the price ($249).
VERDICT: TIE
Both skip the subscription and last well over a week. The Ultrahuman Ring Pro wins on features, processing and a slightly longer battery; the RingConn Gen 2 wins decisively on price — roughly half the cost for solid, proven tracking. Pick by whether you want premium metrics or the best value.
Tie — both are one-time purchases with no membership.
Tie
Price
RingConn Gen 2: ~$249. Ring Pro: $479. RingConn is roughly half the price for a subscription-free ring.
RingConn Gen 2
Battery
Ring Pro: ~15 days. RingConn Gen 2: ~12 days. Both excellent; Ultrahuman edges it.
Ultrahuman Ring Pro
Features & processing
The Ring Pro adds an on-ring dual-core processor, richer metabolic-leaning metrics and the "Jade" biointelligence layer. RingConn keeps things simpler.
Ultrahuman Ring Pro
Tracking quality
Both deliver solid sleep and HRV tracking for the price; neither matches Oura’s validated accuracy, and the everyday difference between them is small.
Tie
Track record
RingConn Gen 2 is proven and, after settling with Oura, remains on sale in the US. The Ring Pro is new; Ultrahuman’s prior Ring Air had battery-reliability complaints the redesign targets.
RingConn Gen 2
Choose Ultrahuman Ring Pro
Choose the Ultrahuman Ring Pro if you want the richer feature set, on-ring processing and the longest battery, and the higher price is worth it.
Choose RingConn Gen 2
Choose the RingConn Gen 2 if you want a subscription-free ring with a long battery and solid tracking for the lowest price — the value pick.
The short version
Two subscription-free rings, different tiers. The Ultrahuman Ring Pro is the premium option (~$479, ~15-day battery, on-ring processing); the RingConn Gen 2 is the value champion (~$249, ~12-day battery, solid tracking).
When the Ultrahuman Ring Pro is the right pick
You want the richer feature set, onboard processing and the longest battery, and the higher price is acceptable.
When the RingConn Gen 2 is the right pick
You want a subscription-free ring with a long battery and dependable tracking for the lowest price.
Both are subscription-free with long batteries. The Ring Pro is the premium pick (more features, on-ring processing, ~15-day battery, $479); the RingConn Gen 2 is the value pick (solid tracking, ~12-day battery, ~$249). If budget matters most, RingConn; if you want the richer ring, Ring Pro.
Is the Ring Pro worth nearly double the RingConn?
Only if you value the extra features, processing and slightly longer battery. For core sleep-and-HRV tracking without a subscription, the RingConn Gen 2 delivers most of the everyday benefit for about half the price.
Are both available in the US?
Yes. RingConn settled its patent dispute with Oura and stays on sale, and the redesigned Ultrahuman Ring Pro is US-available (unlike the older Ultrahuman Ring Air, which is under a US import ban).