Smart AI Rings Compared: Oura Ring 4 vs Samsung Galaxy Ring vs Ringcon Gen 2 Air vs Ultrahuman Ring Air
- Let's Compare AI
- Dec 18, 2025
- 3 min read
Smart rings are increasingly popular as subtle, wearable health and activity trackers that don’t feel like a bulky smartwatch. In 2025, several standout options are worth considering — including the Oura Ring 4, Samsung Galaxy Ring, RingConn Gen 2 Air, and Ultrahuman Ring Air.
We’re breaking down how these smart rings compare in terms of features, pricing, performance scores, and real-world feedback from reviews and tests.
Let's Compare ⬇️
Best for: Sleep & recovery insights
Price range: ~£300–£400
Key features: Advanced sleep tracking, HRV, readiness scores, body temperature trends
Battery life: ~4–7 days
Compatibility: iOS & Android
Real reviews say: Widely considered the best smart ring overall with excellent sleep tracking and health insights, though it typically requires a subscription for full functionality. Tom's Guide+1
⭐Score: 91 / 100
Best for: Android & Samsung ecosystem users
Price range: ~£349–£399
Key features: Heart rate, sleep tracking, skin temperature, BLE 5.4 connectivity, IP68 water resistance
Battery life: ~4–7 days
Compatibility: Android (best with Samsung devices) Wikipedia
Real reviews say: Strong integration with Samsung Health and solid core tracking; widely praised for comfort but mixed reports on battery reliability have surfaced. TechRadar
⭐Score: 88 / 100
Best for: Budget health tracking
Price range: ~£100–£150
Key features: Basic sleep, heart rate, activity tracking with simple app support
Battery life: ~5–10 days
Compatibility: iOS & Android
Real reviews say: Users appreciate the value and straightforward tracking on a budget; more advanced metrics are limited compared with higher-end rings. RingConn
⭐Score: 82 / 100
Best for: Fitness & performance tracking
Price range: ~£209–£249
Key features: Heart rate, sleep, activity, metabolic insights, AI-enhanced coaching suggestions
Battery life: ~3–6 days
Compatibility: iOS & Android
Real reviews say: Noted for being lightweight and well-rounded; battery life and metric stability can vary, but it’s a strong alternative to premium models. The Verge
⭐Score: 84 / 100
🧍 What Reviews Say
Multiple review sources list the Oura Ring 4 as the best smart ring overall with comprehensive health and sleep tracking that’s retained its lead in 2025. Its app, polished user interface, and long-term health insight tracking stand out. Tom's Guide
But: it usually comes with a subscription to unlock the most detailed insights, which some users find expensive long-term. Tom's Guide
Samsung’s entry impresses with integration and comfort — it’s one of the first smart rings developed by a major phone brand, and it works smoothly with Samsung Health. Wikipedia
However, there have been isolated reports of battery performance and overheating issues, including a rare case that led to device removal in a hospital setting. TechRadar These are extreme outliers, but worth noting so potential buyers know what’s been discussed online.
While not as feature-rich as Oura or Samsung’s ring, community feedback praises RingConn’s value and simplicity for core health tracking — especially for those who want basics without high cost or subscription fees. RingConn
Reviewers have found the Ultrahuman Ring Air to be very lightweight and comfortable with a focus on fitness and metabolic insights. Battery life can be a little shorter and metrics slightly less consistent than premium options, but overall it’s a good middle ground. The Verge
How to Choose the Right Ring for You
Here’s a quick way to think about these options:
Best for deep health insights + sleep tracking: Oura Ring 4
Best for Android & Samsung users: Samsung Galaxy Ring
Best budget option: RingConn Gen 2 Air
Best mix of fitness + comfort: Ultrahuman Ring Air
Final Thoughts
Smart rings still offer a compelling wearable experience without screens or constant interaction — making them ideal for people who want health data quietly in the background. In 2025, Oura continues to lead overall, Samsung offers great ecosystem support, RingConn keeps things affordable, and Ultrahuman balances fitness tracking with comfortable wear.
As reviews show, no one ring dominates every category, so the right choice depends on whether you prioritise comfort, ecosystem, deep insights, or cost.
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