The Edit — Gadgets
Smart Rings Compared: Oura, RingConn, Galaxy Ring
Six smart rings ranked by rating. The ring is half the purchase: Oura's app needs a membership after the first month, Samsung's listing says no subscription, and one well-known brand cannot be sold in the US at all.
This guide is research-led: we have not handled these units ourselves. If you buy through our links we may earn a commission — it never changes a pick. How we choose
The 6 rings are ranked by rating, then by how many owners rated them on 5 October 2026, and read against each maker’s published specifications, as How we choose describes. Nothing here was worn or tested.
Best for Slimmest ring, fullest app
Watch for Monthly membership
Best for Long battery life
Watch for Sleep tracking splits owners
Best for Value and a thin band
Watch for Durability reports mixed
Best for Sizes 4 to 15
Watch for Replaced by the Ring 5
Best for Sleep-focused tracking
Watch for Battery fades for some
Best for Samsung owners, no fee
Watch for Rated 3.0
The membership is part of the price
A smart ring is a sensor; the app turns it into sleep and readiness scores. Oura includes 1 month of membership with a new ring and then lists it at $5.99 a month or $69.99 a year in the US, as of 5 October 2026. Without it, Oura says you see only 3 daily scores: Readiness, Activity and Sleep.
Samsung’s Galaxy Ring listing says no app subscription. RingConn’s own cost guide says its current rings need no monthly fee for core features.
| Ring | App after month 1 |
|---|---|
| Oura Ring 5 and Ring 4 | Membership, or 3 daily scores only |
| Samsung Galaxy Ring | No subscription, as listed |
| RingConn | No monthly fee for core features, by RingConn’s guide |
Buy the Oura Ring 5 if the membership suits you
Oura cut 40% from the size of the Ring 4: the Oura Ring 5 is 6.09 mm wide and 2.28 mm thick by Oura’s figures, in titanium. Oura quotes 6 to 9 days of battery and water resistance to 100 metres. It can go on the index, middle or ring finger.
Oura Ring 5
2,278 ratings at 4.4, the best-rated ring here, 6.09 mm wide and 2.28 mm thick by Oura's figures.
Current price shown on Amazon. We may earn a commission.
| Size | 6.09 mm wide, 2.28 mm thick |
|---|---|
| Battery | 6 to 9 days |
| Water | To 100 m |
| App | Membership after month 1 |
2,278 ratings at 4.4, the best-rated ring here. Owners find it comfortable enough to forget while sleeping and slim enough not to look like a gadget. They praise the sleep and activity tracking, and report good battery life with a warning well before it runs out.
An Oura Ring 4 sizing kit does not size a Ring 5. Oura says sizing differs between generations, and the Ring 5 kit runs from 6 to 13.
Buy it if
- Someone who wants the slimmest ring and the fullest app
Don't buy it if
- Anyone who will not pay a monthly fee
The Oura Ring 4 carries more ratings, 9,263, at a lower 4.0. It is the generation the Ring 5 replaced, and its one advantage is range: Oura’s Ring 4 sizes run from 4 to 15.
Oura Ring 4
9,263 ratings at 4.0, the most-rated ring here, and the generation the Ring 5 replaced.
Current price shown on Amazon. We may earn a commission.
| App | Membership after month 1 |
|---|---|
| Sizing | Own kit, sizes 4 to 15 |
9,263 ratings at 4.0. Owners split on almost everything: some call it fantastic, others terrible. Battery life splits them, with some reporting only 2 days between charges, and so does accuracy, with some praising the heart rate tracking and others reporting inconsistent readings.
Buy it if
- A wider range of sizes than the Ring 5
Don't buy it if
- Anyone who can buy the Ring 5 instead
RingConn is the pick if you want no Oura membership
Three RingConn rings are on this page, and the thinnest has the most ratings. The RingConn Gen 2 Air carries 5,031 ratings at 4.2, and owners say it tracks steps, sleep, ovulation and heart rate well.
RingConn Gen 2 Air
5,031 ratings at 4.2, an ultra-thin ring that owners say tracks steps, sleep and heart rate well.
Current price shown on Amazon. We may earn a commission.
| Design | Ultra-thin |
|---|
5,031 ratings at 4.2. Owners rate the tracking and the value. Battery life splits them, from praise to reports of a single day per charge. Durability splits them too, with some saying it did not last a year.
Buy it if
- Value, and tracking steps, sleep and cycles
Don't buy it if
- Anyone who wants proof it lasts beyond a year
RingConn Gen 3 Smart Ring
1,025 ratings at 4.3, RingConn's newest ring, listed with vascular trend tracking.
Current price shown on Amazon. We may earn a commission.
| Listed feature | Vascular trends |
|---|
1,025 ratings at 4.3, the newest RingConn, listed with vascular trend tracking. Owners praise the battery life and the sizing kit, whose sizers sit firmly in their slots. Sizing accuracy and sleep tracking both split owners.
Buy it if
- Long gaps between charges
Don't buy it if
- Anyone who needs sleep tracking they can trust night to night
RingConn Gen 2
7,334 ratings at 4.0, listed with sleep apnea monitoring, with battery and reliability complaints.
Current price shown on Amazon. We may earn a commission.
| Listed feature | Sleep apnea monitoring |
|---|
7,334 ratings at 4.0, listed with sleep apnea monitoring. Owners value the sleep, fitness and stress tracking. Battery and reliability are the recurring complaints, with reports of a battery that stops holding charge after a few months.
Buy it if
- Sleep, fitness and stress tracking
Don't buy it if
- Anyone expecting it to last for years
The Galaxy Ring rates lowest despite having no fee
The Galaxy Ring is the only ring here whose listing promises no app subscription and ships a sizing kit first. It also rates 3.0 across 1,502 ratings, the lowest on this page by more than a full star.
Samsung Galaxy Ring
1,502 ratings at 3.0, the lowest here, listed with a sizing kit first and no app subscription.
Current price shown on Amazon. We may earn a commission.
| Sizing | Sizing kit ships first |
|---|---|
| App | No subscription, as listed |
1,502 ratings at 3.0. Owners like how it looks and say it connects smoothly to Samsung phones, though some report disconnections. Sleep tracking and value split them, and many call it a waste of money.
Buy it if
- A Samsung phone owner who will not pay monthly
Don't buy it if
- Anyone who needs accurate sleep tracking
Smart ring sizing covers why a jewellery size will not do and how to use a kit. For a smaller gadget gift, Bluetooth trackers compares AirTag, Tile and SmartTag.