Updated September 30, 2026 · ThriveCue Editorial Team
Circular vs Oura
Circular vs Oura: the differences
| Compare |  Circular |  Oura |
|---|---|---|
| Price from | $349 | €265.30 |
| Membership per month | $0 | €5.99 |
| Battery life | 8 days | 6 to 9 daysHigher |
| Water resistance (m) | 50 | 100Higher |
| Warranty | 1 year | 1 to 2 yearsHigher |
| Markets | LV, JP, IN, TH, CN, ID, VN, HK, SG, TW, KR, PH, MY, BD, KH, AL, DE, AD, AM, AT, BY, BE, BA, BG, CY, VA, HR, DK, ES, EE, FI, GE, GI, GR, GL, GG, HU, IM, AX, FO, IE, IS, IT, JE, XK, LI, LT, LU, MK, MT, YT, MD, MC, ME, NO, NL, PL, PT, CZ, RE, RO, SM, RS, SK, SI, SE, SJ, TR, UA, FR, IL, FJ, MX, PF, PG, AZ, LA, LB, LK, MN, MO, NP, PK, PS, TJ, UZ, AR, BR, CI, CM, CO, CV, DZ, EC, EG, GA, GF, GH, GM, GN, GW, LY, MA, MG, ML, NE, NG, PE, SN, TN, UY, ZA, BL, MF, MQ, PM, CL, CA, SC, BH, OM, SA, QA, AE, KW, MM, JO, AU, NZ, CH, GB, USCovers more | AX, AE, AR, AU, BE, BG, BR, CA, CH, CL, CN, CO, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GG, GR, GL, HK, HR, HU, ID, IE, IL, IN, IS, IT, JE, JP, KR, LT, LU, LV, MT, MX, MY, NL, NO, NZ, PE, PH, PL, PT, QA, RO, SA, SE, SG, SI, SK, TH, TR, TW, US, VN, ZA |
Same on both: Platforms (iOS, Android).
We earn a commission when you sign up through links on this site. Partner status can affect where a brand appears in our rankings.
Key differences
- Oura scores higher overall: 9.1 vs 8.8.
- Battery life is higher at Oura: 6 to 9 days vs 8 days.
- Water resistance (m) is higher at Oura: 100 vs 50.
- Warranty is higher at Oura: 1 to 2 years vs 1 year.
- Support channels: only Oura offers Phone.
- Circular is available in 75 more countries.
- Health sensors: only Circular offers Ecg, Blood pressure.
- Markets: only Circular offers BD, KH, AL.
Our verdict on each
Circular
Circular suits anyone who wants a smart ring without a recurring subscription, and it holds the top spot on membership cost with a monthly fee of $0. The catch is endurance: 8 days of battery sits below what rivals manage.
Oura
Oura suits anyone who wants sleep, temperature and recovery trends from a ring rather than a screen on the wrist, and who is comfortable with a monthly membership on top. It ranks 28 of 31 brands on starting price, at €265.30, with a membership of €5.99 a month.
Score breakdown
| Area | Circular | Oura |
|---|---|---|
| Cost | 8.8HigherEntry price of $349 ranks 29 of 31, and the membership costs $0. | 8.5Entry price of €265.30 plus €5.99 a month; ranked 28 of 31 on price and 13 of 21 on the fee. |
| Offer | 8.8Membership fee of $0 places it 1 of 21 on that measure. | 9.7HigherSensors for heart rate, spo2 and hrv, battery of 6 to 9 days, water resistance of 100 metres, and membership at €5.99 a month. |
Which one suits you
Pick Circular if cost and markets matter most.
Pick Oura if offer, battery life, water resistance (m), and warranty matter most.
Where these facts come from
Circular
- circular.xyz: 7 facts, checked September 30, 2026
- shop.circular.xyz: 5 facts, checked September 30, 2026
Oura
- ouraring.com: 9 facts, checked September 30, 2026
- support.ouraring.com: 3 facts, checked September 30, 2026
How they place
| Ranking | Circular | Oura |
|---|---|---|
| Smart rings | 12 of 14 | 10 of 14 |
Every fact side by side
| Fact | Circular | Oura |
|---|---|---|
| Products | Smart ring | Smart ring |
| Health sensors | Heart rate, Spo2, Ecg, Skin temperature, Hrv, Sleep, Blood pressureCovers more | Heart rate, Spo2, Hrv, Skin temperature, Sleep |
| Legal entity | Circular Health Limited | Oura Health Oy |
| Headquarters | France | Finland |
| Support channels | Email, Chat, Help centre | Help centre, Chat, Email, PhoneCovers more |
Where each stands against the rest
| Fact | Circular | Oura | Median |
|---|---|---|---|
| Battery life | 8 daysbelow the median | 6 to 9 daysbelow the median | 14 days |
| Water resistance (m) | 50at the median | 100above the median | 50 |
| Warranty | 1 yearat the median | 1 to 2 yearsabove the median | 1 year |
Median across 27 listed brands.
Pros and cons
Circular
Pros
- No recurring membership charge at $0, which ranks 1 of 21 brands.
- Entry price of $349 is a single hardware cost rather than a package that hides a subscription.
- Water resistance of 50 metres suits swimming, showering and general wear.
Cons
- Battery life of 8 days ranks 16 of 23 brands, so charging is more frequent.
- The entry price of $349 sits at 29 of 31 brands, so the hardware itself is not the cheapest.
- Support runs on email, chat and help centre only, with no phone line listed.
Oura
Pros
- Entry price of €265.30 is below Ultrahuman Amazon at €379, so the ring costs less at the point of purchase.
- The sensor set covers heart rate, spo2 and hrv, giving sleep, temperature, blood oxygen, heart rate and variability readings with nothing to wear on the wrist.
- A warranty of 1 to 2 years runs well past the 1 years of cover across the smart ring group.
Cons
- The membership adds €5.99 every month on top of a €265.30 ring, while the smart ring group sits at €0 a month, so a recurring charge is not the norm in this category.
- Battery life of 6 to 9 days is short next to the 14 days of the smart ring group, so charging becomes a regular habit.
- The range is smart ring only, while Amazfit covers smartwatch, fitness tracker and smart ring, so a watch, strap or scale has to come from another maker.
Who each suits
Circular
Who it suits
- Buyers who want a ring and no monthly membership, given the fee of $0.
- People who care about durability over battery, with resistance of 50 metres and a 1 year warranty.
- Senders who travel often, since Circular Health Limited ships across LV, JP and IN.
Who should look elsewhere
- Battery-first buyers, who should look at Oura, where the entry price starts at €265.30.
- Shoppers who want a ring plus a watch, since Amazfit and Samsung both list wider product ranges while Circular sells smart ring only.
Oura
Who it suits
- You want sleep, recovery and temperature trends without a display on your wrist, and you are happy to charge the ring every few days.
- You use an iPhone or an Android and want both supported, since the app covers iOS and Android.
- You prefer buying straight from the maker, with support on help centre, chat and email and a 1 to 2 year warranty behind the ring.
Who should look elsewhere
- Amazfit, if you want a ring alongside smartwatches, fitness trackers, chest straps and smart scales, since it covers smartwatch, fitness tracker and smart ring.
- Samsung, if you plan to combine a ring with a smartwatch from the same maker, since Samsung covers smartwatch and smart ring.
- Ultrahuman Amazon, if a higher starting price suits you: its ring begins at €379, close to the €379 top of the smart ring range.
Current offers
Oura
Current offer
Free trial
First month of Oura Membership free: 1 month free
New Oura Members only; first month on us, then €5.99/month or €69.99/year for EU members (USD/CAD/AUD/JPY/GBP/CHF pricing varies). Also sold as 'Free trial month for new members' on the membership page.
Source, checked September 30, 2026
Free trial
28-day free Natural Cycles trial with ring: 28 days free
Offered at checkout with the purchase of an Oura Ring; Natural Cycles add-on terms apply and the trial is fulfilled by Natural Cycles.
Source, checked September 30, 2026
Country by country
| Country | Circular | Oura |
|---|---|---|
| Albania | Yes | No |
| Algeria | Yes | No |
| Andorra | Yes | No |
| Argentina | Yes | No |
| Armenia | Yes | No |
| Austria | Yes | No |
| Azerbaijan | Yes | No |
| Bahrain | Yes | No |
8 of 130 countries where either is available.
Questions about each
Circular
How much does the Circular ring cost?+
The entry price is $349, charged for the hardware itself. There is no joining fee to use it, since the membership costs $0. Readers comparing total ownership over several years will find the hardware cost is front loaded rather than spread across a subscription.
Is there a membership fee for Circular?+
No monthly membership is charged, as the membership costs $0. That places Circular 1 of 21 brands on that measure. It is the main reason to pick this ring over rivals that tie the app to a recurring plan.
Oura
How much does the ring cost to buy?+
The ring starts at €265.30, below the €379 entry price at Ultrahuman Amazon. On starting price Oura ranks 28 of 31 brands, so it is one of the more expensive rings on the list even though it undercuts that rival.
Does the ring need a paid membership?+
Yes, the ring works alongside a membership that costs €5.99 a month, so the hardware is not the only ongoing charge. Oura ranks 13 of 21 brands on this monthly cost, which puts it past the middle of the field on recurring fees.