Not medical advice. Smart rings are consumer wellness devices, not diagnostic tools, unless a specific feature has regulatory authorization (we name it where one exists). This page reports what published studies and makers state, with sources. If a reading worries you, talk to a clinician. Our health-content rules.
The contenders
Side by side
Stock photoOur pick for most phones
RingConn Gen 3
No subscription8.1/10No fee, up to 14 days a charge, a case rated at 150+ days in total, sizes 6-15, and it works on iPhone and Android.
Check price · Amazon#ad · Price set by Amazon · How we make money for the link to RingConn Gen 3
Stock photoBest if you carry a Samsung Galaxy phone
Samsung Galaxy Ring
No subscription6.2/10No fee, a charging case in the box, sizes 5-15, and Samsung-only extras. Android only, and no peer-reviewed validation found.
Check price · Amazon#ad · Price set by Amazon · How we make money for the link to Samsung Galaxy Ring
Stock photoThe RingConn with its own preprint
RingConn Gen 2
No subscription8.2/10No fee, 10-12 days a charge, a case rated at up to 150 days, and a chest-strap comparison of its own (a 2026 preprint).
Check price · Amazon#ad · Price set by Amazon · How we make money for the link to RingConn Gen 2

The verdict
So is RingConn better than the Samsung ring? On our rubric, the Gen 3 scores 8.1, the Gen 2 8.2 and the Galaxy Ring 6.2. All three score full marks on cost, since none charges a fee. The Galaxy Ring loses points in three places in roughly equal measure: battery, evidence, and phone support, because it shuts out iPhone and holds features back on other Android brands. On a Samsung phone, though, those features are exactly what you're paying for, and the Galaxy Ring is a fair choice. For the full research, see our RingConn Gen 3 review and Samsung Galaxy Ring review.
Phones: the first filter
Start here, because it may end the comparison. Samsung says the Galaxy Ring is supported on Samsung Galaxy phones and other brands' Android phones running Android 11 or newer, and it doesn't work with iPhone (Samsung). On a non-Samsung Android phone it loses features: Samsung says Double Pinch and Find My Ring don't work there, and Energy Score insights need a “compatible Samsung Galaxy AI phone, Samsung Health app and Samsung account.” Android Police also listed Galaxy AI health recommendations among the features missing on other phones.
RingConn doesn't tie you to a phone brand. The Gadgeteer confirmed the Gen 3 app on iPhone and Android, and RingConn lists iOS 17.0+ and Android 10.0+ for the Gen 2. So, does RingConn work with Samsung phones? Yes, on any Samsung running Android 10 or newer (for Gen 2), and we found nothing in RingConn's materials that ties a feature to a phone brand. Put simply:
- iPhone: RingConn. The Galaxy Ring isn't an option. See the best smart ring for iPhone.
- Samsung Galaxy phone: either works. The Galaxy Ring gets its full feature set; RingConn gets its battery and size range.
- Other Android phone: RingConn, unless the Galaxy Ring's design or case wins you over despite the missing features. See the best smart ring for Android.
The decisive differences
The common ground: all three are titanium or titanium alloy, all three carry serious water ratings (RingConn IP68, plus 10ATM on Gen 3; Samsung 10ATM and IP68), all three come with a charging case and a free sizing kit, all three brands say the ring qualifies for HSA/FSA funds, and all three are listed on Amazon.com. The differences are the phone, the battery and the sizes.
Fees: none on either side
This is one comparison where the fee column is a tie at zero. RingConn's Gen 3 page says “No Subscription,” and The Gadgeteer's review found “no locked tier, no upsell screen anywhere in the app.” Samsung's Amazon listing title says “No App Subscription,” and its US product page lists no paid Samsung Health requirement. Samsung's only “fee” is a phone: some features need a Galaxy handset.
| Ring | Required plan | Fees, 1 yr | Fees, 3 yrs | Fees, 5 yrs | Ring price |
|---|---|---|---|---|---|
| RingConn Gen 3 | No subscription | $0 | $0 | $0 | Check on Amazon |
| Samsung Galaxy Ring | No subscription | $0 | $0 | $0 | Check on Amazon |
| RingConn Gen 2 | No subscription | $0 | $0 | $0 | Check on Amazon |
Brand-by-brand policies are in does the Galaxy Ring need a subscription and which smart rings require a subscription.
Battery and charging cases
This is RingConn's clearest win. RingConn claims up to 14 days per charge for Gen 3 (11-14 on its features page) and 10-12 for Gen 2; The Gadgeteer's reviewer got about 10 days from Gen 3 with vibration alerts on. Samsung claims up to 7 days for sizes 12 and 13 and up to 6 for smaller sizes, and GSMArena got about 5 days from a size 11.
All three include a charging case, but the reserves differ a lot. RingConn rates the Gen 3 at 150+ days in total with its case and the Gen 2 at up to 150. Samsung says a full charging-case charge brings the Galaxy Ring to up to 14 days in total. By the makers' numbers, a RingConn and its case can go months between outlets, while a Galaxy Ring and its case go about two weeks. These are each maker's claims under their own conditions; our battery life guide reads them with their fine print, and chargers and charging cases covers the cases themselves.
On battery safety, Samsung blamed a crack in the ring's internal molding for one Galaxy Ring swelling case and said there was “no wider product battery safety risk” (via Android Police). RingConn says its batteries are sealed inside the ring and not designed for user replacement. Our battery swelling explainer covers what to do if a ring ever swells.
Sizing
The Galaxy Ring comes in US sizes 5-15, with 14 and 15 added in January 2025. Samsung says its sizes are “slightly different from that of regular rings,” and part of its US page still says the sample rings “come in 9 sizes, from 5 to 13,” so a size 14 or 15 buyer should confirm the kit includes those. RingConn Gen 3 comes in 10 sizes from 6 to 15, and RingConn says they “differ from other RingConn rings, standard rings and other smart ring brands,” so a Gen 2 size won't carry over to Gen 3. The Gen 2 runs 6-14.
So a size 5 points to Samsung; from 6 to 15, the Galaxy Ring and Gen 3 both fit. No brand publishes an equivalence chart, and a Samsung size is not a RingConn size. Both offer a complimentary kit, and RingConn ships the Gen 3 only after you confirm your size. Our sizing comparison across brands and smart ring sizing guide walk through it.
Accuracy evidence
Neither brand has much, but RingConn has more. The Galaxy Ring launched on July 10, 2024, and when we searched the research literature on September 19, 2026 we found no peer-reviewed validation of it.
Reviewers add context. Gadgets & Wearables found the Gen 2 “consistently reported higher values” than a chest strap on runs, while its resting heart rate correlated 98% with a WHOOP band. So neither ring is a training heart rate monitor; wear a chest strap for that. If published evidence is your first priority, Oura is the brand that has it, for a fee; see Galaxy Ring vs Oura and Oura vs RingConn. Our accuracy pillar covers every study we found.
Features, warranty and where to buy
Health features. RingConn lists Vascular Health Insights (blood pressure trends, with optional manual cuff inputs), Sleep Apnea Pattern Insights, vibration alerts and cycle predictions for Gen 3, and says the ring is “not a medical device.” The Gen 2 advertises “90.7% Sleep Apnea Monitoring Accuracy,” which is RingConn's own claim. Samsung lists sleep tracking, heart rate, skin temperature changes and Energy Score. It has also announced, as reported by Android Authority and Gizmodo, an FDA-cleared sleep apnea risk feature for the Galaxy Ring this fall; it wasn't on Samsung's US ring page when we checked, so treat it as coming, not live. Any of these is a trend or a screen, not a diagnosis. Our guide to smart rings and sleep apnea explains the limits.
Warranty. RingConn gives one year outside the EEA and excludes normal battery capacity loss, but sells optional two- and three-year Product Protection in the US that treats the battery as part of the device. The Galaxy Ring's Amazon listing says “1Yr Manufacturer Warranty” for the US version, and we didn't find a Samsung battery replacement policy for the ring.
Where to buy. All three are listed on Amazon.com. The Gen 3 showed “Out of stock” on RingConn's own store when we checked. RingConn sells in the US under a patent license from Oura, signed in October 2025. Samsung is a respondent in a separate Oura patent action at the International Trade Commission, but we found no exclusion order against the Galaxy Ring, and it's on sale as normal.
Choosing between RingConn generations? RingConn Gen 3 vs Gen 2 covers it, and the RingConn Gen 2 review goes deeper on the older ring. Every no-fee ring is ranked in the best smart rings without a subscription, and the compare hub has every head-to-head.
In detail
The contenders, in full
Stock photoOur pick for most phones
RingConn Gen 3
No fee, up to 14 days a charge, a case rated at 150+ days in total, sizes 6-15, and it works on iPhone and Android.
Published specsResearched · not tested by us
How the 8.1 score breaks down
- Cost of ownership (3 years) (30%)
- 10
- Evidence of accuracy (25%)
- 4
- Battery (claimed) (15%)
- 10
- Sizing & fit (10%)
- 9
- Data ownership (10%)
- 8
- Platform support (10%)
- 9
What the specs support
- No subscription, no locked tier
- Longest claimed single charge of the rings sold on Amazon (up to 14 days), plus a charging case
- Widest size range here (6-15), with a free sizing kit before the ring ships
- Legal US status settled: licensed by Oura since October 2025
Where it falls short
- No published validation study of Gen 3 found; evidence comes from the Gen 2 preprint
- The Gadgeteer's reviewer got about 10 days with vibration alerts on, not 14
- Normal battery capacity loss isn't covered by the warranty
Skip this if…
…You want published, peer-reviewed accuracy evidence for the exact ring you buy: none exists yet for Gen 3.
#ad · Price set by Amazon · How we make money for the link to RingConn Gen 3
Stock photoBest if you carry a Samsung Galaxy phone
Samsung Galaxy Ring
No fee, a charging case in the box, sizes 5-15, and Samsung-only extras. Android only, and no peer-reviewed validation found.
Published specsResearched · not tested by us
How the 6.2 score breaks down
- Cost of ownership (3 years) (30%)
- 10
- Evidence of accuracy (25%)
- 2
- Battery (claimed) (15%)
- 6
- Sizing & fit (10%)
- 8
- Data ownership (10%)
- 7
- Platform support (10%)
- 3
What the specs support
- No subscription
- Charging case included (up to 14 days total, maker's claim)
- Sizes 5-15, with a complimentary sizing kit before the ring
- Titanium, 10ATM and IP68
Where it falls short
- Does not work with iPhone
- Energy Score insights, Find My Ring and gestures need a Samsung Galaxy phone
- No peer-reviewed validation study found
- Up to 6 days on smaller sizes; a reviewer got about 5 days from a size 11
Skip this if…
…You own an iPhone (it doesn't work with iOS), or you use a non-Samsung Android phone and want every feature.
#ad · Price set by Amazon · How we make money for the link to Samsung Galaxy Ring
Stock photoThe RingConn with its own preprint
RingConn Gen 2
No fee, 10-12 days a charge, a case rated at up to 150 days, and a chest-strap comparison of its own (a 2026 preprint).
Published specsResearched · not tested by us
| Subscription | None ("No Subscriptions") |
|---|---|
| Battery (claimed) | 10-12 daysMaker's claim |
| Charging case | Included; "Extended Up to 150 Days With Charging Case"Maker's claim |
| Sizes | 6-14 |
| Sizing kit | Complimentary |
| Phones | iOS 17.0+ and Android 10.0+ |
| Water resistance | IP68 (100 m / 328 ft) |
| Materials | Titanium alloy with medical-grade epoxy resin |
| HSA/FSA | Eligible through Flex |
| Warranty (US) | 1 year (non-EEA); normal battery capacity loss excluded; optional 2- or 3-year protection in the US |
| Features | "Automatic sleep apnea monitoring" with a "90.7% Sleep Apnea Monitoring Accuracy" claim (maker's claim; not a diagnosis)Maker's claim |
| US availability | Listed on Amazon.com |
How the 8.2 score breaks down
- Cost of ownership (3 years) (30%)
- 10
- Evidence of accuracy (25%)
- 5
- Battery (claimed) (15%)
- 9
- Sizing & fit (10%)
- 9
- Data ownership (10%)
- 8
- Platform support (10%)
- 9
What the specs support
- No subscription
- The charging case turns a 10-12 day ring into a months-between-outlets ring (maker's claim)
- A 2026 preprint compared it with a Polar H10 at rest: heart rate bias -0.42 bpm
- iOS and Android, free sizing kit
Where it falls short
- The chest-strap study is a preprint, seated only, and not peer-reviewed
- A reviewer found it read heart rate high during runs compared with a chest strap
- Needs iOS 17 or Android 10 or newer
- Sleep apnea figure is RingConn's own claim
Skip this if…
…You want workout heart rate you can trust on runs: a reviewer found it read high against a chest strap. Wear a strap for training.
#ad · Price set by Amazon · How we make money for the link to RingConn Gen 2
How we scored this
Rings we claim to have lab-tested: 0
Plenty of ring reviews say they wore everything they rank. We haven't, and we say so. Every pick here is labeled Researched: we read each brand's fee policy, spec sheet, sizing and warranty pages, and the published studies that tested the ring (or its predecessor) against a chest strap, an ECG or a sleep lab, then scored it on a public rubric. Every figure links to where it came from, and maker performance numbers are labeled “maker's claim.”
Scores are editorial judgments from that documented research, not test results. Commissions never set a score or decide a pick. The rubric and its weights are published.
What changed
- Published.
Questions
Frequently asked
Is RingConn better than the Samsung Galaxy Ring?
Does RingConn work with Samsung phones?
Do RingConn or the Galaxy Ring need a subscription?
Which is better for iPhone, RingConn or the Galaxy Ring?
Should I get RingConn Gen 2 or Gen 3 instead of a Galaxy Ring?
Receipts
Sources
- RingConn: Gen 3 product page (checked 2026-09-19)
- RingConn: Gen 3 features page (battery, charging case, vascular and sleep apnea insights) (checked 2026-09-19)
- RingConn blog: Gen 3 blood pressure alerts and 10 sizes (Feb 25, 2026) (checked 2026-09-19)
- RingConn: Gen 2 product page (checked 2026-09-19)
- RingConn: smart ring battery replacement guide (warranty terms) (checked 2026-09-19)
- RingConn Support: general FAQs (US product protection) (checked 2026-09-19)
- RingConn: purchase with HSA or FSA funds (checked 2026-09-19)
- RingConn: Oura and RingConn multi-year patent licensing agreement (checked 2026-09-19)
- Amazon search results for "RingConn Gen 3 smart ring" (listing titles) (checked 2026-09-19)
- Amazon search results for "RingConn Gen 2 smart ring" (listing titles) (checked 2026-09-19)
- The Gadgeteer: RingConn Gen 3 review (June 12, 2026) (checked 2026-09-19)
- Gadgets & Wearables: RingConn Gen 2 review (checked 2026-09-19)
- Tao et al., Research Square preprint 2026: ring PPG (RingConn Gen 2) vs chest strap in shooting athletes (not peer-reviewed) (checked 2026-09-19)
- Samsung US: Galaxy Ring product page (checked 2026-09-19)
- Samsung Canada: Galaxy Ring buy page (compatibility notes) (checked 2026-09-19)
- Android Police: Galaxy Ring features on non-Samsung phones (July 22, 2024) (checked 2026-09-19)
- Amazon search results for "Samsung Galaxy Ring" (listing titles) (checked 2026-09-19)
- Samsung Newsroom: Galaxy Ring adds sizes 14 and 15 (sizes 5 to 15) (checked 2026-09-19)
- GSMArena: Galaxy Ring now comes in two new sizes (Jan 13, 2025) (checked 2026-09-19)
- GSMArena: Samsung Galaxy Ring review (checked 2026-09-19)
- Wikipedia: Samsung Galaxy Ring (launch date and launch price) (checked 2026-09-19)
- Android Authority: Samsung Galaxy Ring sleep apnea feature (July 22, 2026) (checked 2026-09-19)
- Gizmodo: Galaxy Ring gets FDA-cleared sleep apnea detection this fall (July 2026) (checked 2026-09-19)
- Android Police: Samsung shares findings on a Galaxy Ring battery swelling incident (Jan 8, 2026) (checked 2026-09-19)
- Oura: second ITC action (Samsung, Zepp, Reebok, Nexxbase) (checked 2026-09-19)
- Oura Support: Oura Membership (price, what works without it) (checked 2026-09-19)
We haven't worn or lab-tested the rings on this page and we don't pretend to. Fees come from each brand's own policy pages (with the date we checked), specs from maker pages and listings, and accuracy claims from named, published studies. Hardware prices are set by Amazon and change daily, so we don't print them. Where a figure isn't published, we say so. Read the full method.



