The affordable option
A smart ring that nails the basics, offering solid sleep tracking at a much lower price than premium rivals. It’s incredibly comfortable, resistant to scratches, and does a great job with heart rate tracking. Battery life is average, and the limited size and finish options might be a dealbreaker for some. The Zepp app is clean and functional, but lacks the polish of higher-end alternatives.
For
- Light and comfortable
- More affordable
- Solid sleep tracking
Against
- Disappointing battery
- Only three sizes
- Only one finish
The premium pick
A sleek, lightweight smart ring that’s comfortable to wear and packed with detailed health and fitness insights. The app is very nice, the battery life is solid, and it’s a great companion for workouts. However, it’s not cheap, scratches easily, and given the ever-evolving smart ring market, spending this much might feel like a bit of a gamble.
For
- Comfortable to wear 24/7
- Lovely app
- Great insights
Against
- Expensive
- Scratches easily
- No smartwatch integration
Smart rings have finally gone mainstream. Once a niche wearable that never quite fit right (literally and figuratively), they’re now a serious alternative to smartwatches. The category got an extra boost in 2024 when Samsung entered the ring (sorry) with the Samsung Galaxy Ring. Offering 24/7 health tracking in a sleek, screen-free form, smart rings are more popular than ever. But with so many options on the market, choosing the right one isn’t easy.
We’ve tested most of the best smart rings you can buy in 2025, but direct comparisons aren’t always straightforward. That’s why we’ve taken two of the biggest contenders – the Amazfit Helio Ring and the Ultrahuman Ring Air – and put them head-to-head.
Both rings offer advanced sleep tracking, recovery insights, and all-day health monitoring in a compact, minimalist design. One is affordable and practical, the other more premium. But which one is right for you? In this comparison, we’ll break down their design, features, tracking accuracy, battery life, and value to help you decide.
Amazfit Helio Ring vs Ultrahuman Ring Air: Price and release date
The Ultrahuman Ring Air launched in summer 2023 with a price tag of $249/£329. The Amazfit Helio Ring arrived later, hitting the market in late 2024 at $299.99 / £269 / AU$399. However, its price has since dropped significantly, now retailing for $199.99 / £169 / AU$269, which makes it a much more affordable option.
Unlike the Oura Ring, neither of these devices locks features behind a subscription paywall, meaning you get full access to all their tracking capabilities without extra fees.
At first glance, the Amazfit Helio Ring seems like the obvious choice for budget-conscious buyers. But price isn’t the only factor, there are a few key differences that might make one a better fit than the other.
Amazfit Helio Ring vs Ultrahuman Ring Air: Specs
| Row 0 – Cell 0 |
Amazfit Helio Ring |
Ultrahuman Ring Air |
|
Color |
Silver |
Raw Titanium, Aster Black, Matte Grey, Bionic Gold, Space Silver |
|
Material |
Titanium |
Titanium |
|
Weight |
Between 3.65g (size 8), 3.75g (size 10) and 3.82g (size 12) |
Between 2.4 to 3.6g |
|
Thickness |
2.6mm |
2.45 to 2.8mm |
|
Battery life |
Up to 4 days (3.5 days in our testing) |
Up to 6 days |
|
Connectivity |
Bluetooth |
Bluetooth |
|
Water resistance |
10 ATM |
10 ATM |
|
Sizes |
8, 10 and 12 |
5, 6, 7, 8, 9, 10, 11, 12 and 13 |
Amazfit Helio Ring vs Ultrahuman Ring Air: Features
At their core, both rings offer 24/7 tracking across health, wellness, sleep, and activity. The differences? They’re subtle but worth noting.
One standout feature of the Amazfit Helio Ring is its EDA (Electrodermal Activity) sensor, designed for stress tracking. The Ultrahuman Ring Air has its own stress tracking feature, but uses your heart rate rather than a dedicated sensor. But honestly, that might not be a dealbreaker. In my experience, the EDA readings felt more like a nice-to-have than a must-have.
Then there are a few features the Ultrahuman Ring Air offers that the Amazfit Helio Ring lacks, like a stimulant restriction window and daylight exposure guidance, both designed to optimize your sleep.
Battery life is trickier to compare. On paper, the Amazfit Helio Ring promises four days, but in real-world use (with all health settings maxed out), I got closer to three-and-a-half.
The Ultrahuman Ring Air edges ahead, lasting at least four-and-a-half days, sometimes closer to six, depending on settings. Both rings charge via a small plinth-style dock, making recharging quick and easy.
- Winner: Ultrahuman Ring Air
Amazfit Helio Ring vs Ultrahuman Ring Air: Tracking
When it comes to smart rings, the app experience is crucial. After all, there’s no screen on a smart ring.
The Ultrahuman app has the upper hand in design, with a sleek, modern, almost futuristic aesthetic. The Zepp app, used for the Amazfit Helio Ring, is clean and functional but leans more on the plain and practical side.
Each app brings its own unique tracking features. Zepp includes stress tracking and PAI (personal physiological activity indicator), a metric for overall fitness. Ultrahuman also tracks stress, but pulls from a different set of data points.
Both rings support menstrual cycle tracking, but Ultrahuman takes it a step further, offering fertility and ovulation insights. Similarly, while both provide recovery insights, Ultrahuman dives deeper, breaking down how it calculates your recovery score. That said, Amazfit’s recovery tracking is still solid.
In terms of accuracy, both rings perform very similarly. Ultrahuman may have a slight edge in sleep tracking, while Amazfit shines in heart rate tracking, particularly during walking and running.
Where Amazfit really stands out is its ecosystem. If you use an Amazfit smartwatch, you can track fitness and daily activity with the watch and dedicate the ring to nighttime tracking, creating a more complete picture of your health, all within the Zepp app.
Ultrahuman, on the other hand, integrates with third-party platforms like Strava, making it a better choice for those who already rely on external fitness apps.
- Winner: Ultrahuman Ring Air
Amazfit Helio Ring vs Ultrahuman Ring Air: Design
Once again, these two rings follow similar design principles. They’re minimalist, sleek, and unobtrusive.
Visually, I preferred the brushed metal texture of the Amazfit Helio Ring with little dots on the front side, but that’s purely personal preference. It’s also the only option available, whereas Ultrahuman offers more variety, with finishes including Raw Titanium, Aster Black, Matte Grey, Bionic Gold, and Space Silver.
One practical advantage of the Amazfit Helio Ring? It seemed less prone to scratching. That said, I can’t say for sure whether that would hold true if I had tested Ultrahuman’s Raw Titanium variant. One thing I can say for certain: Matte black is not a good idea.
Both rings are built for durability, featuring an outer shell made from titanium and offering 10 ATM water resistance, making them more than capable of handling daily wear, workouts, and even swimming.
Comfort-wise, these are the two best smart rings I’ve tested. Both are so light and ergonomic that I frequently forgot I was even wearing them.
As for dimensions, they’re almost the same. Ultrahuman says the Ring Air measures 2.45 to 2.8mm thick and weighs between 2.4 to 3.6g, depending on ring size. The Amazfit Helio Ring is 2.6mm and slightly heavier, ranging from 3.65g (size 8) to 3.82g (size 12).
The most notable difference is that the Amazfit Helio Ring currently comes in just three sizes – 8, 10, and 12 – while the Ultrahuman Ring Air offers eight sizes, ranging from 5 to 14. So, while design choices and materials are important, none of that matters if Amazfit doesn’t make your size yet.
- Winner: Amazfit Helio Ring
Amazfit Helio Ring vs Ultrahuman Ring Air: Value
On paper, the Amazfit Helio Ring looks like the clear winner in terms of value. It’s significantly cheaper and covers all the same core features as the Ultrahuman Ring Air.
But price isn’t everything. The Ultrahuman Ring Air justifies its higher cost with more premium sleep tracking, a wider range of design options, and a sleeker, more polished app experience. Whether that’s worth the extra money depends on what you value most.
For some, those refinements will be worth it. For others, the Amazfit Helio Ring delivers everything they need at a much lower price. Well, assuming they have your size…
- Winner: Amazfit Helio Ring
Amazfit Helio Ring vs Ultrahuman Ring Air: Verdict
These two smart rings are remarkably similar in terms of features, performance, and design.
The Ultrahuman Ring Air has a more polished app, more size and finish options, and a few extra sleep-focused features that I found genuinely useful. Plus, since it’s been on the market longer, it’s had more time to refine its software and add new features.
That said, the Amazfit Helio Ring delivers a lot for significantly less money. If you’re on a budget, this is the easy pick. It’s also the better choice if you already own an Amazfit smartwatch, since everything syncs seamlessly in the Zepp app.
If price isn’t a concern and you want more sizing options, a premium-feeling app, or a specific finish, then the Ultrahuman Ring Air is the better fit.
Rarely do I come across a head-to-head comparison where both options are so evenly matched, but that’s the case here. Your decision ultimately comes down to budget and personal preference – either way, you’re getting a solid, well-designed smart ring.
