Smart rings remain a niche category, mostly focused on discreet health and sleep tracking, with limited features compared to smartwatches. The Oura Ring 4 is the best overall pick for 2025 thanks to its accuracy, design, size range, and research-backed features, though it requires a $5.99/month subscription. Alternatives include the $400 Samsung Galaxy Ring, which integrates well with Samsung devices but has first-gen quirks, the $350 Ultrahuman Ring Air, a subscription-free, fitness-focused option with optional paid add-ons, and the $200 RingConn Gen 2 Air, an affordable, comfortable ring with strong battery life and basic tracking.
Source: The Verge