Yeyro Ring X
One of the cheapest smart rings on the market (~$99, no subscription) — but with thin, largely negative third-party feedback and no independent validation
WELLNESS
Marketed as a general wellness device. Not FDA cleared, approved, or evaluated for any medical claim.
Key facts at a glance.
- Founded
- 2022
- Headquarters
- Melbourne, Australia
- Price range
- $99–$99
The real price over three years.
Total cost of ownership · 3yr
| Hardwareone-time | $99 |
| 3-year total | $99 |
What the device does.
- + About $99 with no subscription; companion app is free
- + Tracks heart rate, SpO2, HRV, skin temperature, sleep stages and steps
- + Claimed light ~2.5 g build; IP68 water resistance
- + Up to ~9-day battery; ~90-minute wireless charge
- + iOS and Android app
The trade-offs.
- + One of the lowest entry prices in the category (~$99) with no subscription
- + Covers the standard metric set — HR, SpO2, HRV, temperature, sleep, steps
- + Free companion app on iOS and Android
- + Light build with IP68 water resistance and multi-day battery (claimed)
- − Third-party feedback is thin and skews negative (around 2.6/5 on a major review site; very low app-store rating on a tiny sample)
- − Repeated user reports of inaccurate temperature, step and sleep readings
- − Reports of slow/unresponsive support and refund disputes
- − Listings disagree on the ring's material (titanium vs steel vs ceramic) — you can't confirm what you're buying
- − No independent accuracy validation exists
Budget buyers who want a sub-$100, subscription-free smart ring and accept significant unknowns
The long read.
§ Hands-on instrument testing pending. Based on published specifications and third-party data.
Overview
The Yeyro Ring X is about as cheap as smart rings get: roughly $99 with no subscription, from Yeyro, a small Melbourne-based startup founded in 2022. On paper it covers everything the $300+ rings do — heart rate, SpO2, HRV, skin temperature, sleep stages and steps, through a free app. The price is the entire appeal. The caveats are the rest of this review.
Why we’re cautious
We haven’t bench-tested this ring, so this isn’t a tested verdict — but the available signals warrant an honest warning rather than a neutral shrug:
- Ratings are thin and mostly negative. On a major Australian consumer-review site it sits around 2.6/5, and its app-store rating is very low (on a handful of reviews). The sample is small, but it’s not encouraging.
- Accuracy complaints recur. Users report skin-temperature readings that look implausible, step counts that overcount, and unreliable sleep detection. For a device whose whole job is measurement, that’s the core function in question.
- Support and refunds draw complaints. Multiple reports describe slow or unresponsive customer service.
- The spec sheet contradicts itself. Different listings describe the ring as titanium, stainless steel, or ceramic. You shouldn’t have to guess what material is on your finger.
The claims we won’t repeat
Yeyro’s marketing includes “world’s lightest smart ring” and “100% accuracy.” We don’t restate either — the first is an unverified comparative claim, and no consumer smart ring measures anything at 100% accuracy. A ring is a wellness tracker for spotting trends; it does not diagnose, treat or monitor any medical condition, and a Yeyro reading should never be treated as a clinical result.
Where it fits
- Maybe consider it if your budget is hard-capped near $100, you want to experiment with the ring form factor, and you treat the data as rough and directional.
- Look elsewhere if measurement quality matters to you. In the subscription-free tier, RingConn Gen 2, the Samsung Galaxy Ring and Ultrahuman are far better-supported choices with real track records.
Verdict: Not yet tested
We aren’t recommending the Yeyro Ring X, and we aren’t condemning a device we haven’t measured — but the documented accuracy, support and spec-consistency concerns mean you should go in with low expectations. At this price it’s an experiment, not a reliable instrument.
How we’ll assess it
If we test it, we’ll validate HRV against a Polar H10 reference, sanity-check the temperature and step outputs that users flag, and confirm the actual ring material. See our methodology.
Changelog
- 2026-06-16: Initial listing. Not yet tested; surfaced documented third-party accuracy, support and spec-consistency concerns.
What we'll measure on the bench.
- Protocol
- Polar H10 + Kubios HRV
- Primary metric
- HRV (RMSSD) Bland–Altman bias vs Polar H10
- Pass threshold
- ±5 ms bias · ±15 ms 95% LoA
- Session shape
- 7 morning resting sessions
§ Bench session pending. Measured values will replace this panel as the protocol completes — see Plate VI · Methodology for the full testing rulebook.
Common questions.
- How much does Yeyro Ring X cost?
- Yeyro Ring X costs $99.
- Does Yeyro Ring X require a subscription?
- No. Yeyro Ring X does not require a subscription — there is no mandatory recurring fee to keep using it.
- Is Yeyro Ring X FDA cleared?
- No. Yeyro Ring X is sold under the FDA's "general wellness" category and is not FDA cleared as a medical device.