ConsFirst / Smart rings

Smart rings: the downsides, first

Batteries that stop holding a charge are the biggest regret with smart rings — 47% of the Samsung Galaxy Ring's Amazon ratings are 1–2 stars, mostly for batteries that fade and rings that die. Oura's rings need a paid membership for most of their data; most rivals don't. Here are the most popular smart rings in the US, with their downsides first.

8 models compared17 sources readUpdated October 2026

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Good to know before buying in 2026

Oura filed patent suits against other ring makers in late 2025. Tom's Guide reports that the Ultrahuman Ring Air was banned from US sale (the redesigned Ultrahuman Ring Pro is sold in the US, per CNET), RingConn and Circular took licensing deals with Oura, and Oura is still in dispute with Samsung and Amazfit — whose rings are still on sale but, Tom's Guide says, could be pulled or lose support.

If you just want an answer

What smart ring owners complain about most

  1. Batteries that fade or rings that die. Batteries that stop holding a charge and rings that stop working are the most repeated owner complaint, especially for Samsung, Oura Ring 4 and RingConn.
  2. Subscriptions and paid add-ons. Oura needs a membership for most data, and some rivals sell paid add-ons.
  3. Accuracy and workout tracking. Testers found workout tracking hit or miss, and budget rings less accurate than Oura.
  4. Apps that lose data or confuse. Buggy, slow-syncing or confusing apps come up for several rivals.
  5. Bulk, scratches and sizing. Some rings are chunky with protruding sensors, scratch easily or come in limited sizes.

All 8 smart rings, ranked

Ranked by test scores, minus how common and serious the complaints are. How we rank

#1
Oura

Oura Ring 5

$$$Subscription ringiPhone and AndroidScore 4.3/5
10%
of Amazon ratings are 1–2 stars
(checked 2026-10-10)
2,333 ratings on the Gold, size 8 listing (76% 5-star, 8% 1-star, 2% 2-star).

The top pick at WIRED, PCMag, Tom's Guide, ZDNET and CNET: 40% smaller than the Ring 4, comfortable, with accurate sleep and stress tracking and about 10 days of battery in PCMag's test. The catch is the $399 price plus a $6-a-month membership that WIRED says still feels mandatory, and sizes stop at 6-13.

Subscription: Required for most data: Oura Membership $5.99/mo or $69.99/yr; without it you see only Readiness, Activity and Sleep scores (WIRED, PCMag)

Top complaints

What owners love

Good for
  • The most comfortable, low-profile ring
  • Detailed sleep, stress and recovery insights
  • iPhone or Android users who don't mind a membership

Scores (tap for why)

What experts say

  • PCMag: Best Overall, 4.0 Excellent (list updated 2026-09-22). Cons: expensive, hit-or-miss automatic workout tracking.
  • WIRED: Best smart ring overall (updated July 2026), but Symptom Radar isn't as predictive as Oura claims and the subscription still feels mandatory.
  • Tom's Guide: Best overall (updated 2026-09-22), and with RingConn one of the two 'safest choices' while Oura's patent cases continue.
Full breakdown →Check price on AmazonWe don't list prices — they change daily. Paid link.
#2
Oura

Oura Ring 4

$$Subscription ringiPhone and AndroidScore 3.7/5
20%
of Amazon ratings are 1–2 stars
(checked 2026-10-10)
9,313 ratings on the Silver, size 9 listing (15% 1-star, 5% 2-star).

Still sold alongside the Ring 5 and getting the same software updates, it's PCMag's Best Value pick and Wirecutter's top sleep tracker. But it's bulkier than the Ring 5, needs the same membership, and 1 in 5 Amazon ratings are 1 or 2 stars, often over battery life and rings that fail within a year.

Subscription: Required for most data: $5.99/mo or $69.99/yr; first month free (Wirecutter, PCMag)

Top complaints

What owners love

Good for
  • Oura's app and insights for $50 less than the Ring 5
  • Small or large fingers (sizes 4-15)
  • A ceramic finish (Oura Ring 4 Ceramic)

Scores (tap for why)

What experts say

  • PCMag: Best Value, 4.0 Excellent. Cons: expensive, requires a monthly fee for most features, fewer workout details than wrist trackers.
  • Wirecutter: Top pick for sleep tracking (updated 2026-06-08), but costly, better with the subscription, and it sometimes confuses inactivity with sleep.
  • ZDNET: Best smart ring alternative: the same software updates as the Ring 5 at a discount.
Full breakdown →Check price on AmazonWe don't list prices — they change daily. Paid link.
#3
Ultrahuman

Ultrahuman Ring Pro

$$$No-subscription ringScore 3.7/5
Amazon 1–2 star share
not available

Ultrahuman's redesigned ring is sold in the US at $479 after the Ring Air was blocked over an Oura patent (CNET, Engadget). It offers 10+ days of battery and a feature-rich charging case. Engadget rates it 8.9/10, but ZDNET gives it 3/5, calling it chunky and more expensive than the Oura Ring 5.

Subscription: Optional: no membership, but paid 'Power Plugs' add-ons, including a monthly fee for AFib detection (Engadget)

Top complaints

What owners love

Good for
  • The longest battery among these rings
  • Data lovers who want deep metrics
  • No monthly membership

Scores (tap for why)

What experts say

  • Engadget: 8.9/10 (2026-05-14): better hardware and a brilliant case, but pricier than rivals and not a quantum leap.
  • ZDNET: 3.0/5: long battery and free case, but chunkier and more expensive than the Oura Ring 5.
  • CNET: The Ring Air was banned in the US after Oura's lawsuit; the Ring Pro is available in the US from $479.
Full breakdown →Check price on AmazonWe don't list prices — they change daily. Paid link.
#4
RingConn

RingConn Gen 2

$$No-subscription ringiPhone and AndroidScore 3.6/5
19%
of Amazon ratings are 1–2 stars
(checked 2026-10-10)
7,373 ratings on the Gold, size 10 listing (13% 1-star, 6% 2-star).

The $299 titanium step-up from the Gen 2 Air, adding sleep apnea monitoring, VO2 max and a charging case that RingConn says keeps it going 150-plus days. Experts mention it mostly as an alternative rather than a top pick. About 1 in 5 Amazon ratings are 1 or 2 stars, often about batteries that stop holding a charge.

Subscription: None (WIRED, Tom's Guide)

Top complaints

  • Battery stops holding a charge; rings stop working

    Amazon's review summary says some owners report the battery stops holding a charge and the ring stops working after a few months, and calls durability a concern.

  • Few workout modes

    Tom's Guide notes it tracks a relatively modest number of activities, such as running, cycling and yoga.

  • Mostly a secondary recommendation

    WIRED lists it as an honorable mention, mainly $100 more than the Gen 2 Air for sleep apnea monitoring, VO2 max and titanium. Amazon owners are split on whether it's worth the price.

What owners love

Good for
  • Sleep apnea monitoring without a subscription
  • Long battery with a pocketable charging case
  • A titanium ring for less than Oura

Scores (tap for why)

What experts say

  • WIRED: Honorable mention: still relatively affordable and subscription-free; adds sleep apnea monitoring, VO2 max and titanium over the Gen 2 Air.
  • Tom's Guide (hands-on): January 2025 hands-on: potentially beats the Oura Ring 4 on sleep apnea detection, thinner design and charging case; battery claims weren't yet tested.
Full breakdown →Check price on AmazonWe don't list prices — they change daily. Paid link.
#5
RingConn

RingConn Gen 2 Air

$No-subscription ringiPhone and AndroidScore 3.4/5
15%
of Amazon ratings are 1–2 stars
(checked 2026-10-10)
4,733 ratings on the size 7 silver listing (10% 1-star, 5% 2-star).

The budget pick at WIRED, PCMag, Tom's Guide and ZDNET: $199, no subscription and over a week of battery. RingConn settled with Oura through a licensing deal, so it's a 'safe' buy. Accuracy is the trade-off: WIRED saw it overestimate sleep, and PCMag logged some inaccurate heart-rate readings.

Subscription: None (WIRED, PCMag)

Top complaints

What owners love

Good for
  • The cheapest no-subscription ring experts recommend
  • Over a week between charges
  • iPhone or Android

Scores (tap for why)

What experts say

  • PCMag: Most Affordable, 3.5 Good. Cons: minimal exercise tracking, some inaccurate heart-rate readings, slow app syncing.
  • WIRED: Best subscription-free ring, but limited workout tracking, slow syncing and less accurate than competitors.
  • Tom's Guide: Best entry-level ring; Tom's Guide also found it the least comfortable in the guide.
Full breakdown →Check price on AmazonWe don't list prices — they change daily. Paid link.
#6
Circular

Circular Ring 2

$$$No-subscription ringiPhone and AndroidScore 2.9/5
Amazon 1–2 star share
not available

Packed with metrics, including ECG with FDA-cleared AFib detection, and lasts about a week. Circular licensed Oura's patents, so it stays on sale in the US. But both Tom's Guide and WIRED hit app bugs and data sync problems, and the exterior scratches easily.

Subscription: Optional: most features free; some advanced features are paywalled (Tom's Guide)

Top complaints

What owners love

Good for
  • The widest range of wellness metrics without a required fee
  • At-home sizing with your phone camera
  • A closed charging case for travel

Scores (tap for why)

What experts say

  • Tom's Guide: Impressive health features let down by a buggy app with data sync issues; scratch-prone exterior.
  • Tom's Guide: 'Also consider': Circular licensed Oura's patents so it's still on sale; clunky app and prone to blemishes.
  • WIRED: Honorable mention: pretty and pings you at good times for focus or caffeine, but persistent server issues and data delays.
Full breakdown →Check price on AmazonWe don't list prices — they change daily. Paid link.
#7
Amazfit

Amazfit Helio Ring

$No-subscription ringiPhone and AndroidScore 2.7/5
21%
of Amazon ratings are 1–2 stars
(checked 2026-10-10)
Small sample: 140 ratings. A separate size 10 listing (B0D5LCCLWS, 145 ratings) shows 34% 1-2 stars.

Experts disagree. Tom's Guide calls it the best cheap ring, comfortable and tough, though it warns Amazfit's patent dispute with Oura could affect sales and support. WIRED lists it under 'avoid' for inaccurate heart rate, about three days of battery and a confusing app. Amazon owners also report short battery life.

Subscription: Optional: no fee for core tracking; Aura AI ($70/yr) and Fitness ($30/yr) add-ons are sold separately (WIRED)

Top complaints

What owners love

Good for
  • Amazfit watch owners (it merges data with the watch)
  • A low price with no required fee
  • Sizes 8, 10 or 12

Scores (tap for why)

What experts say

  • Tom's Guide: Best cheap smart ring, with a disclaimer that Amazfit's legal dispute with Oura could lead to removal from sale or end of support.
  • WIRED: Listed under 'Avoid': inaccurate, no automatic workout tracking, about three days of battery, and confusing paid add-ons.
Full breakdown →Check price on AmazonWe don't list prices — they change daily. Paid link.
#8
Samsung

Samsung Galaxy Ring

$$$No-subscription ringAndroid onlyScore 3.2/5
47%
of Amazon ratings are 1–2 stars
(checked 2026-10-10)
1,510 ratings on the size 10 listing (36% 1-star, 11% 2-star).

Experts like it for Samsung phone owners: subscription-free, comfortable, with a charging case. Tom's Guide calls it the best for sleep tracking. But nearly half of its Amazon ratings are 1 or 2 stars, mostly about batteries that stop holding a charge or rings that die. Tom's Guide also warns that Oura's patent case could pull it from sale or end support.

Subscription: None (WIRED, PCMag)

Top complaints

What owners love

Good for
  • Samsung Galaxy phone and Galaxy Watch owners
  • No monthly fee
  • A charging case for travel

Scores (tap for why)

What experts say

  • Tom's Guide: Best for sleep tracking, with a warning that the Oura legal dispute could lead to removal from sale or end of support.
  • PCMag: Best for Samsung phone users, 3.5 Good. Cons: expensive, some accuracy issues, limits on non-Samsung phones.
  • WIRED: Best for Samsung users; not worth buying without a Samsung phone, and the AI suggestions are poor.
Full breakdown →Check price on AmazonWe don't list prices — they change daily. Paid link.

Questions people ask

What do smart ring owners complain about most?

Across the 8 popular smart rings we compared, the complaints that came up most were: batteries that fade or rings that die; subscriptions and paid add-ons; accuracy and workout tracking; apps that lose data or confuse; bulk, scratches and sizing.

What is the best smart ring overall?

Our top pick is the Oura Ring 5. The top pick at WIRED, PCMag, Tom's Guide, ZDNET and CNET: 40% smaller than the Ring 4, comfortable, with accurate sleep and stress tracking and about 10 days of battery in PCMag's test. The catch is the $399 price plus a $6-a-month membership that WIRED says still feels mandatory, and sizes stop at 6-13. Its most common complaint: membership on top of a $399 ring.

What is the best budget smart ring?

The RingConn Gen 2 Air is our pick in the lowest price tier. The budget pick at WIRED, PCMag, Tom's Guide and ZDNET: $199, no subscription and over a week of battery. RingConn settled with Oura through a licensing deal, so it's a 'safe' buy. Accuracy is the trade-off: WIRED saw it overestimate sleep, and PCMag logged some inaccurate heart-rate readings.

How does ConsFirst rank smart rings?

We summarize owner complaints from retailer reviews and the results of independent expert tests, score each model on sleep tracking, battery life, app & insights, comfort & sizing, durability, and rank by those scores minus how common the complaints are. Every claim links to its source.

Compare the top picks

Side by side

ModelPrice1–2★ shareScore#1 complaint
Oura Ring 5$$$10%4.3Membership on top of a $399 ring
Oura Ring 4$$20%3.7Battery and reliability problems
Ultrahuman Ring Pro$$$—3.7Chunky, with protruding sensors
RingConn Gen 2$$19%3.6Battery stops holding a charge; rings stop working
RingConn Gen 2 Air$15%3.4Less accurate than rivals
Circular Ring 2$$$—2.9Buggy app and lost data
Amazfit Helio Ring$21%2.7Short battery life
Samsung Galaxy Ring$$$47%3.2Battery stops holding a charge; rings die

Price tiers: $ under $200 · $$ $200–350 · $$$ over $350 (typical list price, not a live price).

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