| Size | Diameter (mm) | Circumference (mm) | Weight (g) | Diameter (in) | Circumference (in) |
|---|---|---|---|---|---|
| 6 | 16.5 | 50 | 35–40 | 0.65 | 1.97 |
| 7 | 17.3 | 53 | 45–50 | 0.68 | 2.09 |
| 8 | 18.1 | 56 | 55–60 | 0.71 | 2.20 |
| 9 | 18.9 | 59 | 65–70 | 0.74 | 2.32 |
| 10 | 19.8 | 61 | 70–75 | 0.78 | 2.40 |
| 11 | 20.6 | 64 | 75–80 | 0.81 | 2.52 |
| 12 | 21.4 | 67 | 80–90 | 0.84 | 2.64 |
4.9/5 stars from 1,200+ reviews
All the sleep, heart & recovery tracking of a $300 smart ring — for a fraction of the price, with no subscription, ever. Your data, yours to keep.
-
✅
Tracks sleep, heart rate, HRV, blood oxygen, steps & stress 24/7
-
💸
No membership. No monthly fee. The app is free, forever.
-
🔓
Same sensor tech as the $300 rings — you just own yours (OwnSignal™)
Sizing Chart
Is there really no subscription?
Really. Buy it once and the app is free forever — sleep, heart rate, HRV, SpO2 and stress, nothing paywalled. No membership the day after, ever.
Does a $49 ring track accurately?
It uses the same finger-sensor method as the big-name rings. Buyers test it next to an Apple Watch and get near-identical heart-rate, step and sleep readings. A wellness tracker, not a medical device — but more than enough for your daily trends.
How do I get the right size?
Add the free sizing kit at checkout — wear the sizer for a day, then order that size. Works with iPhone & Android. Free shipping · money-back guarantee.
Real people who quit the subscription
Cancelled my $30/mo — same sleep data
Tested it against my Apple Watch
Wear it to bed, forget it's there
You were never paying $349 for better hardware. You were paying to rent your own body.
Meet OwnSignal™ — the same tracking the big-name rings give you, minus the monthly fee and the data hostage.
Here’s what nobody tells you: the $300 ring and the $50 ring read your body the same way — the same finger sensors. (A hospital clips the monitor on your finger, not your wrist — it’s the cleanest signal site.) What $349-plus-a-forever-fee really bought: permission to see your own data. The Vita Ring runs on OwnSignal™ — the same finger-read tracking, in a free app you own. No subscription, nothing paywalled.


Does a $49 ring really work?
The same numbers as a $349 ring — and buyers prove it against their Apple Watch.
We get it — “how good can a cheap ring be?” It reads from your finger with the same sensor the big names use. Wear it next to an Apple Watch for a week: near-identical heart rate, steps and sleep.
It’s a wellness tracker, not a medical device — but for nightly trends, more than good enough. No $349 gamble to find out.

No subscription. Ever.
Your body data shouldn’t come with a monthly bill.
The big-name rings sell you the hardware — then charge $6–$30 a month to read your own body data. Stop paying and the app goes dark — one owner called it “a paperweight the day you stop paying.”
The Vita Ring is yours outright — free app, nothing paywalled, yours to keep. You bought a ring, not a rental.

About $49, once
If it gives out, you’re out $49 — not $400 and a refurb.
Premium rings fail too — batteries that swell, rings that brick at 11 months, a used one shipped back as your “replacement.” After $349 plus a year of fees, that stings.
At about $49 with no subscription, the math’s on your side — money-back guaranteed.

Light enough to forget
The tracker you’ll actually wear to bed — so you finally see your nights.
A smartwatch is bulky, glows in your face, and dead on the charger right when you sleep. The Vita Ring is a couple of grams with no screen — you forget it’s on, so it stays on.
So you finally see the full picture: sleep, resting heart rate, recovery and stress, all night. (It tracks your cycle and energy, too.)
Yes, this is a good ad. Here’s the honest catch.
Part of you is thinking “sure, sounds great.” Fair. So here it is straight: this is a budget ring, not a $349 status symbol. The app is clean and simple, not a glossy ecosystem.
What you get is the tracking you actually use — sleep, heart, recovery — with no subscription, no paywall, and your data in your hands. If that’s the trade you want, you’ll love it. Backed by our money-back guarantee, so you can find out risk-free.
Same tracking. None of the monthly fee.
| Calluve Vita Ring | $300 Rings + Subscription | |
|---|---|---|
| Monthly subscription | ✅ Never — $0/mo | ❌ $5.99–$30/mo, forever |
| Your sleep & heart data | ✅ Free & unlocked, yours to keep | ❌ Locked behind the membership |
| Core tracking (sleep, HR, HRV, SpO2, stress) | ✅ Yes, 24/7 | ✅ Yes |
| Upfront price | ✅ About $49, once | ❌ $299–$499 |
| If it fails in a year | ✅ You're out ~$49 | ❌ Out $349+ (often a refurb swap) |
| Works on iPhone & Android | ✅ Both | ❌ Some lock to one phone |
Our customers tell it better than we do!
based on 1 067 reviews
Premium-ring insight. None of the premium price — or the monthly fee.
One big-name ring runs $299–$499, then bills you every month to read your own body. The Vita Ring is about $49, once — sleep, heart, HRV, SpO2 and stress, in a free app you own.
Add the free sizing kit so it fits right the first time. If it’s not for you, your money back — no $349 gamble.
Questions, answered
Is there really no subscription?
Really. You buy the ring once and the app is free — sleep, heart rate, HRV, SpO2 and stress, with nothing paywalled. No membership the day after, ever.
Does a $49 ring actually track accurately?
It uses the same finger-sensor method as the big-name rings. Buyers regularly test it against an Apple Watch and get near-identical heart-rate, step and sleep readings. Great for daily trends — it’s a wellness tracker, not a medical device.
How do I get the right size?
Grab the free sizing kit at checkout — wear the sizer for a day, then order that size. Rings sit a touch differently than fashion rings, so the kit takes the guesswork out.
Does it work with my iPhone?
Yes — iPhone and Android both. Unlike some smart rings that lock you to one brand of phone.
How long does the battery last?
Several days per charge, and it tops up in minutes in the charging case — so it’s never on the charger at night when you actually want to track your sleep.
Is my health data private?
Your data lives in your app and stays yours. There’s no subscription server holding it hostage and nothing to lose access to if you ever stop using it.
What if it doesn’t work out?
You’re covered by our money-back guarantee. If it’s not for you, reach out and we’ll make it right — no $349 gamble.
Keep renting your body — or finally own your data.
You can keep eyeing a $349 ring with a forever-subscription, or paying monthly for one you already bought.
Or you can wear a ring that tracks the same things, costs about $49 once, and hands you your data free — nothing paywalled, nothing to cancel. Only you can decide.