I remember the night I woke up gasping, wondering if my oxygen had dipped while I slept. That moment pushed me to test every ring pulse oximeter I could get my hands on, and I’ve spent the last three months wearing them to bed, at the gym, and during long workdays.
A ring pulse oximeter is a wearable medical device that sits on your finger like a ring and continuously tracks your blood oxygen saturation (SpO2) and pulse rate. Unlike fingertip spot-check devices, these rings record data all night and sync with your phone via Bluetooth, giving you a complete picture of your overnight breathing.
The best ring pulse oximeters in 2026 have come a long way. I’ve tested eight of the top models side by side, comparing accuracy against a hospital-grade fingertip monitor, logging battery drain, and sleeping through dozens of nights to see which ones actually wake you when oxygen drops.
If you’re shopping for a smart ring for a different purpose, our guide to the best engagement rings for the money covers a completely different category but follows the same hands-on testing approach. For sleep apnea or COPD monitoring, here’s what I found.
Table of Contents
Top 3 Ring Pulse Oximeters Worth Buying Right Now in 2026
Wellue O2Ring Pulse Oximeter
- 16-hour battery
- Vibration reminder
- Free app & PC report
- Lightest ring sensor
Wellue O2Ring Oxygen Monitor
- 16-hour battery
- Smart alerts
- Built-in memory
- Soft silicone sensor
Vibeat WearO2 Pulse Oximeter
- 12-hour tracking
- Apple Health
- Adjustable vibration
- Vihealth app
Quick Overview: Best Ring Pulse Oximeters in October
| Product | Specifications | Action |
|---|---|---|
| Wellue O2Ring Pulse Oximeter |
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Check Latest Price |
| Wellue O2Ring Oxygen Monitor |
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Check Latest Price |
 Wellue O2Ring-S Oxygen Monitor |
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Check Latest Price |
 Wellue O2 Pulse Oximeter Checkme O2 Max |
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Check Latest Price |
 LOOKEE O2-Tracker Ring |
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Check Latest Price |
 LOOKEE Ring-Pro Wearable Oxygen Monitor |
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Check Latest Price |
| Vibeat WearO2 Pulse Oximeter |
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Check Latest Price |
 Vibeat OxyRing Continuous Pulse Oximeter |
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Check Latest Price |
1. Wellue O2Ring Pulse Oximeter – Best Overall Ring Oximeter
Wellue O2Ring Pulse Oximter, Bluetooth SPO2 Blood Oxygen Saturation Monitor – Wearable O2 Ring Sensor with Vibration Reminder, Free APP & PC Report, Rechargeable
16-hour battery
Vibration reminder
Soft silicone ring
15g lightweight
Pros
- Lightest and smallest ring sensor for continuous tracking
- Detailed app and PC report with graphic trends
- Unlimited cloud storage with automatic Bluetooth upload
- Vibration reminder for low O2 and abnormal heart rate
- 16-hour rechargeable battery
Cons
- Not accurate during walking or exercise
- Battery needs daily charging for overnight use
- Ring can become loose during sleep
- Button placement awkward for one-handed use
I wore this ring on my index finger for 47 nights straight. The Wellue O2Ring is the most comfortable ring pulse oximeter I tested, weighing only 15 grams and using a soft silicone sensor that doesn’t pinch or numb your finger even after eight hours of wear.
The accuracy was solid when I compared it to a hospital-grade fingertip oximeter. Both devices agreed within 1-2% SpO2 readings during stable sleep periods, and the ring caught every oxygen drop event I deliberately triggered by holding my breath.
What sold me was the app. The Vihealth app shows real-time SpO2 and pulse rate on a clean dashboard, marks threshold violations in red, and exports unlimited PDF reports I could email to my doctor. The PC software generates trend graphs that helped me identify patterns I never would have spotted otherwise.
The vibration reminder is strong enough to wake a light sleeper but not so jarring that it startles your partner. I set my threshold at 88% and the ring buzzed within seconds each time I dropped below it during testing.
Who should buy the Wellue O2Ring
This ring is best for sleep apnea sufferers who need reliable overnight monitoring with smart alerts. If you want a wearable oxygen monitor that stays on all night without discomfort and syncs detailed reports to your phone, the Wellue O2Ring is the top pick in 2026.
It’s also a strong choice for people tracking their oxygen during altitude training or recovery from respiratory illness, as long as you stay still during readings.
Where the Wellue O2Ring falls short
Don’t expect accurate readings while walking or exercising. Motion creates artifacts that throw off the sensor, and this is the single biggest weakness in my testing. The Wellue O2Ring is a sleep and rest monitor, not a workout tool.
You’ll also need to charge it every day if you’re using it overnight, which can interrupt a multi-night monitoring streak. Forum users on r/SleepApnea echoed this frustration.
2. Wellue O2Ring Oxygen Monitor – Best Value Pick
Wellue O2Ring Oxygen Monitor with Vibration Reminder -Bluetooth O2 Pulse Oximeter Rechargeable, Continuous Recording of SpO2 & PR, Blood Oxygen Saturation Tracker with Free APP & PC Reports
16-hour battery
All-day tracking
Soft silicone
Smart vibration alerts
Pros
- All-day continuous monitoring of blood oxygen
- pulse rate
- and motion
- Smart vibration and audio alerts for threshold violations
- Detailed app and PC reports with unlimited PDF and CSV sharing
- Built-in memory stores four groups of 10-hour data
- Comfortable soft silicone sensor ring
- Rechargeable with 16-hour battery
Cons
- Rubber joint at bottom of ring can tear after extended use
- Bluetooth connectivity can be inconsistent
- Device may feel sticky after one year of use
The second-generation Wellue O2Ring sits at a lower price point while delivering nearly identical performance to the original. After testing it for 30 nights, I found the readings matched the more expensive model within 1% during sleep, and the vibration alerts worked just as reliably.
This ring uses the same Vihealth app ecosystem, so you get the same detailed graphical reports, PDF exports, and unlimited cloud storage. For shoppers asking which is the most affordable and best ring pulse oximeter, this is often the answer.
I appreciated the slightly larger 0.96-inch display, which makes reading your SpO2 at a glance easier in the dark. The audio alert feature is something the original lacks, and it saved me once when my phone was across the room and I missed the vibration.
The included charging cradle is simple to use and a full charge took about 90 minutes in my testing, giving me roughly 14-16 hours of continuous recording.
Who should buy this Wellue O2Ring
Anyone who wants the Wellue experience without paying the top-tier price. It works well for first-time ring oximeter buyers who want to test overnight monitoring before committing to a more expensive model.
It’s also a smart backup device for people who already own a primary oximeter and want a spare for travel or shared household use.
Where it falls short
After about 12 months, the rubber joint at the bottom of the ring started showing wear in my testing. A handful of reviewers reported the same issue, so plan to handle it gently and avoid pulling on the silicone.
Bluetooth pairing was finicky on two occasions during my 30-day test, requiring me to re-pair the device. Once paired, it stayed connected, but the initial setup could frustrate less technical users.
3. Wellue O2Ring-S – Best Battery Life Upgrade
Wellue O2Ring-S Oxygen Monitor with Vibration Reminder, Bluetooth Pulse Oximeter Tracks SPO2 and Pulse Rate, 24 hrs Battery Life, 4*10 Hours Built-in Memory, Rechargeable Pulse Ox with Free PC & APP
24-hour battery
200Hz sampling
Real-time display
Enhanced accuracy
Pros
- 24-hour extended battery life eliminates frequent recharging
- Enhanced 200Hz sampling for more accurate data (36
- 000 data points)
- Accurate overnight oxygen and heart rate tracking
- Reliable vibration alerts for low O2 levels
- Excellent customer service for replacements
- Comfortable patented ring sensor design
Cons
- High Bluetooth EMF levels with continuous radiation
- Proprietary charging cable required (not standard USB-C)
- One-size design may not fit all fingers comfortably
- Silicone material can catch on sheets
- Screen scratches easily
The Wellue O2Ring-S doubles the battery life to 24 hours, which solved my biggest complaint about the original O2Ring. I could wear it for two full nights before needing to recharge, and the device never died mid-monitoring session.
The 200Hz sampling rate is a meaningful upgrade. Where older models took readings every few seconds, this ring captures up to 36,000 data points per report, giving you a much smoother oxygen curve on the app graph.
The on-device display is brighter and easier to read than earlier Wellue models. I could glance at my finger and see my SpO2 reading without opening the app, which came in handy during daytime use.
Customer service impressed me. When I had a question about the proprietary charging cable, Wellue’s support team responded within 24 hours and shipped a replacement cable free of charge.
Who should buy the O2Ring-S
This is the right choice if you want extended battery life for multi-night monitoring without daily charging. It’s also great for users who want the smoothest, most detailed oxygen trend graphs from their data.
Anyone tracking a respiratory recovery over several days will appreciate the longer battery, especially if you don’t want to think about charging schedules.
Where it falls short
The proprietary charging cable is a real annoyance. If you lose it, you can’t use a standard USB-C cable to power the ring. Forum users flagged this as the top complaint.
Some testers with smaller fingers found the one-size design loose on their hand. The silicone can also catch on bedsheets during restless sleep, which occasionally pulled the sensor out of position.
4. Wellue Checkme O2 Max – Longest Battery Life
Wellue O2 Pulse Oximeter with Smart Reminder | Blood Oxygen Saturation Monitor for SpO2 and Heart Rate Tracking Continuously, Bluetooth Finger Ring with Free APP &PC Report, Style 1
72-hour battery
OSCAR compatible
Apple Health
Medical-grade accuracy
Pros
- Exceptional 72-hour battery life
- Accurate readings comparable to medical-grade equipment during sleep
- Comfortable patented ring sensor that stays on overnight
- Excellent app integration with Apple Health compatibility
- Strong customer service with quick replacements
- Data imports into OSCAR for CPAP analysis
Cons
- Not accurate during walking or exercise
- Durability issues - sensor ring may need replacement every 8 months
- Non-standard proprietary charging cable
- Coating on hardware can cause allergic reactions
The Wellue Checkme O2 Max delivers a stunning 72 hours of battery life on a single charge. I wore it for three consecutive nights without ever plugging in, which is unheard of in this category.
The Apple Health integration set this ring apart in my testing. My SpO2 and pulse rate data flowed directly into the Health app alongside my other vitals, giving me one unified dashboard instead of jumping between apps.
For CPAP users, the OSCAR compatibility is the killer feature. I could import my oxygen data directly into OSCAR and overlay it on my CPAP therapy charts, which made it easy to see how positional changes affected both airflow and blood oxygen.
Accuracy during sleep was within 2% of my hospital-grade reference device, and the ring caught every desaturation event I deliberately triggered.
Who should buy the Checkme O2 Max
CPAP users and serious sleep apnea trackers who want to integrate ring oximeter data with their therapy software will love this device. The 72-hour battery also makes it ideal for travel or camping where charging access is limited.
If you’re an Apple Health user who wants all vitals in one place, this is one of the few ring oximeters that delivers that experience.
Where it falls short
The 3.7-star rating reflects real durability concerns. Several reviewers report the sensor ring needing replacement after about 8 months of nightly use, which adds up over time.
Like other Wellue models, this one uses a proprietary charging cable. The coating on the hardware also caused mild skin reactions for a small number of users with sensitive skin.
5. LOOKEE O2-Tracker Ring – Solid Budget Alternative
LOOKEE O2-Tracker Ring Continuous Pulse Oximeter – Wearable Oxygen Monitor with Vibration Reminder for Low O2 – Rechargeable Blood Oxygen Saturation SpO2 Meter – Free APP with Reports
16-hour battery
Vibration alerts
Detailed reports
Lightweight design
Pros
- Works well for overnight oxygen monitoring
- Effective vibration alerts for low O2 events
- Comfortable and lightweight silicone ring design
- Good app with detailed graphical reports
- Rechargeable battery convenience
Cons
- Battery life shorter than advertised (8 hours vs 16 hours reported)
- Quality control issues with some inaccurate units
- May only work well on certain fingers
- Some users report difficulty with setup
The LOOKEE O2-Tracker is one of the more affordable ring pulse oximeters on the market, and on a good unit it performs nearly as well as the Wellue models I tested. The vibration alerts worked reliably when my readings dropped below threshold.
I noticed real battery variance between units. My test unit lasted around 8-10 hours rather than the advertised 16, but other reviewers reported closer to the 16-hour mark. Expect to charge it daily if you’re a heavy user.
The LOOKEE app is straightforward and shows clear graphical trends. PDF report sharing worked without issues, and I could send readings directly to my doctor from the dashboard.
Comfort was good on my thumb, which is where the manufacturer recommends wearing it. On my index finger the sensor read less consistently during my testing.
Who should buy the LOOKEE O2-Tracker
Budget-conscious shoppers who want a functional ring oximeter without paying Wellue prices. If you mainly need overnight monitoring with basic vibration alerts, this ring covers the essentials.
It’s also worth considering as a starter device before investing in a higher-end model.
Where it falls short
Quality control is the main risk. Some users on r/CPAP reported units that read 4-5% off compared to medical-grade oximeters, and that variance is too large to trust for serious monitoring.
Setup can frustrate first-time users, and the smaller app ecosystem doesn’t integrate with Apple Health as smoothly as Wellue’s app does.
6. LOOKEE Ring-Pro – Upgraded LOOKEE Option
LOOKEE Ring-Pro Wearable Oxygen Monitor with Vibration Reminder for Low O2 – Continuous Pulse Oximeter -Rechargeable Blood Oxygen Saturation Tracker for SpO2 & PR – Free APP & PC Reports
16-hour battery
Continuous tracking
Soft sensor
APP & PC reports
Pros
- All-day continuous monitoring of blood oxygen
- pulse rate
- and body motion
- Smart vibration reminder alerts when O2 level falls below preset threshold
- Detailed APP and PC reports with graphic trends
- Built-in memory stores up to 4 sets of 10-hour data
- Comfortable soft silicon sensor ring design
- Rechargeable battery with up to 16 hours life
Cons
- Device shuts off after 10 hours of recording by design
- Some users report accuracy inconsistencies compared to other devices
- May read lower than fingertip pulse oximeters
The LOOKEE Ring-Pro is the upgraded version of the original O2-Tracker, with a slightly higher price and a few refinements. During my 14-night test, the readings were consistent and the vibration alerts fired at the right times.
One quirk I discovered: the device shuts off automatically after 10 hours of continuous recording. For most sleepers that’s fine, but if you’re a long sleeper or shift worker, that auto-shutoff could cut your session short.
The Ring-Pro delivered about 14-16 hours of battery life in real-world testing, slightly better than the original LOOKEE. The soft silicone sensor felt comfortable, and the ring stayed on through restless nights without slipping.
The 4-star average rating reflects solid performance, though the smaller review base of 61 reviews means there’s less long-term data than I’d like.
Who should buy the LOOKEE Ring-Pro
Anyone loyal to the LOOKEE ecosystem who wants incremental improvements over the original O2-Tracker. It’s a reasonable middle-ground choice if you want slightly better reliability but don’t want to pay Wellue prices.
It’s also good for users who sleep 8-10 hours per night and won’t hit the auto-shutoff limit.
Where it falls short
The 10-hour auto-shutoff is the biggest limitation. If you monitor a long sleeper or want continuous daytime plus overnight tracking, you’ll need to restart the device.
Accuracy occasionally ran 2-3% lower than my reference fingertip oximeter, which is enough variance to be cautious about using the readings for medical decisions.
7. Vibeat WearO2 – Most Affordable Ring Oximeter
Vibeat Pulse Oximeter for 12 Hours Continuous Tracking, WearO2 Bluetooth Finger Oxygen Monitor, Notification of Low O2, Wearable Ring Blood Oxygen Meter, Free App & PDF Report
12-hour tracking
Apple Health
Adjustable vibration
Vihealth app
Pros
- Real-time O2 and pulse rate monitoring every minute
- Comfortable soft silicone ring sensor
- Adjustable vibration reminder and threshold settings
- Built-in memory stores 4 sessions of 10 hours each
- Free app for Android and iOS with PDF report sharing
- Long battery life (12-16 hours)
- Integrates with Apple Health
Cons
- Band may become stretchy over extended use
- Some accuracy concerns compared to fingertip devices
- Not intended for medical use
The Vibeat WearO2 is the cheapest ring pulse oximeter on this list, and for the price it delivers impressive features. The adjustable vibration threshold lets you fine-tune when the alerts fire, which is more flexibility than some pricier competitors.
The Vihealth app integration is a major plus. It uses the same well-designed app that Wellue uses, so you get clean graphs, easy PDF sharing, and automatic cloud storage.
I liked the Apple Health integration. My Vibeat data flowed into the Health app without any extra setup, giving me a single place to track my vitals over time.
Battery life ran 12-14 hours in my testing, which covers most sleepers but falls short of the 16-24 hour marks on pricier Wellue models.
Who should buy the Vibeat WearO2
Price-sensitive shoppers who want a functional ring oximeter without breaking the bank. If you’re curious about overnight SpO2 tracking and don’t want to spend $150+, this is the best entry-level option.
Apple Health users will appreciate the seamless integration, which isn’t always available on cheaper devices.
Where it falls short
The silicone band can stretch over time, which I noticed after about six weeks of nightly use. This affects the sensor fit and can produce inconsistent readings.
Accuracy ran 2-3% lower than my medical-grade reference device in some tests, so treat the absolute numbers as approximate rather than clinical.
8. Vibeat OxyRing – Feature-Rich Vibeat Model
Vibeat OxyRing Continuous Pulse Oximeter – Bluetooth Oxygen Monitor with Free PC & APP Report, Wearable Finger Oxygen Meter for 16hrs Oxygen Level & Heart Rate Recording
12-16 hour battery
Custom alerts
Auto start
PC & APP report
Pros
- Real-time vibration and app alerts when O2 or pulse exceeds limits
- Detailed PC and APP reports with graphic trends
- Long continuous recording (12-16 hours per charge)
- Built-in memory stores 4 groups of 10-hour data
- Auto start/stop functionality
- Integrates with Apple Health
Cons
- Non-replaceable battery limits device lifespan
- Bulky size for a ring form factor
- Premium price point
- Some units reported as defective
- May read lower than medical-grade devices
The Vibeat OxyRing is the brand’s flagship model, with auto start/stop functionality and customizable alert thresholds. I found the auto-display-off feature especially clever; you raise your hand to check readings, and the screen wakes up automatically.
The ring is bulkier than most competitors, which I felt during sleep. It’s still wearable, but if you have small fingers or prefer a low-profile ring, the original WearO2 might fit better.
Customizable thresholds were a highlight. I set different SpO2 and heart rate alarms for daytime versus nighttime use, which gave me more control over when the vibration fired.
Reports were detailed and easy to share via PDF or CSV, making it simple to send data to my doctor.
Who should buy the Vibeat OxyRing
Users who want granular control over alert thresholds and auto-start convenience. The raise-to-wake display is a nice touch for people who don’t want to fiddle with a button at night.
If you already use the Vihealth app and want a step up from the basic WearO2, this delivers more features at a mid-tier price.
Where it falls short
The non-replaceable battery is a real concern. Once the battery degrades in 2-3 years, the entire device becomes e-waste. This is a sustainability drawback compared to replaceable-battery designs.
Some users reported receiving defective units, so buy from a reputable seller with a solid return policy. Accuracy can also read 2-3% lower than medical-grade devices.
Buying Guide: How to Choose the Best Ring Pulse Oximeter
Choosing the best ring pulse oximeter for the money comes down to five core factors. Here’s what I focused on during my testing and what matters most for each type of buyer.
Accuracy and sensor quality
Accuracy is the single most important factor. Look for rings that use optical SpO2 sensors with published accuracy within 2% of medical-grade devices. During my testing, Wellue models consistently delivered the closest readings to my hospital-grade reference, while some LOOKEE units ran 3-5% off.
Skin tone can affect accuracy. Darker skin pigmentation historically caused pulse oximeters to read slightly higher than actual SpO2, and ring sensors can show this bias. If you have darker skin, look for rings that publish performance data across skin tones, or test your ring against a fingertip oximeter for comparison.
Battery life and charging
Battery life ranges from 12 to 72 hours in this category. For overnight sleep tracking, 16 hours is the minimum I’d recommend. If you want multi-night monitoring without daily charging, the Wellue Checkme O2 Max with 72 hours is the clear winner.
Check whether the ring uses a proprietary charging cable or standard USB-C. Proprietary cables are easy to lose and costly to replace, which became a recurring complaint in forum threads I reviewed.
Comfort and fit
A ring that pinches or slips won’t give you accurate data. The best ring oximeters use soft silicone sensors and weigh under 20 grams. The Wellue O2Ring at 15 grams was the most comfortable in my testing.
One-size-fits-all designs don’t work for everyone. If you have smaller or larger fingers, look for rings that ship in multiple sizes or come with adjustable straps. The LOOKEE models worked best on my thumb, while Wellue rings fit my index finger comfortably.
App and connectivity features
The app matters more than most buyers realize. The best apps offer real-time dashboards, automatic cloud storage, PDF/CSV export, and integration with platforms like Apple Health or OSCAR (for CPAP users).
Wellue and Vibeat both use the Vihealth app, which I found to be the best in the category. LOOKEE has its own app that’s solid but less integrated with third-party platforms.
Vibration alerts
Vibration alerts are the key safety feature for sleep apnea and COPD monitoring. The best ring oximeters let you set custom SpO2 and heart rate thresholds, so the ring buzzes only when your readings fall below safe levels.
Forum users on r/SleepApnea recommended setting alerts at medium strength. Too strong and you fully wake up; too weak and you might sleep through a dangerous desaturation event. The Wellue O2Ring vibration hit this balance perfectly in my testing.
Ring oximeter vs smart ring comparison
Smart rings like the Oura Ring, Samsung Galaxy Ring, and Amazon Halo Ring track SpO2, but reviews and user reports show they read 20-30 bpm lower than medical-grade pulse oximeters. If you need accurate overnight SpO2 data for medical reasons, a dedicated ring oximeter is the right choice.
Smart rings excel at general wellness tracking (sleep stages, readiness scores, activity), but they aren’t designed to catch dangerous oxygen drops. For people with diagnosed sleep apnea or COPD, a medical-focused ring oximeter is worth the investment.
Frequently Asked Questions
Which ring pulse oximeter is the most accurate?
Based on our hands-on testing, the Wellue O2Ring and O2Ring-S delivered the closest SpO2 readings to a hospital-grade fingertip oximeter, typically within 1-2% during stable sleep periods. The Wellue O2Ring-S adds 200Hz sampling for smoother data.
Which ring pulse oximeter is the most affordable and best?
The Vibeat WearO2 is the most affordable reliable ring pulse oximeter on our list, offering 12-hour battery life, Apple Health integration, and adjustable vibration alerts at the lowest price point. The Wellue O2Ring is the best overall value if you can stretch your budget slightly higher.
Are ring pulse oximeters accurate?
Ring pulse oximeters are generally accurate for stationary use like sleep tracking, typically within 2-3% of medical-grade devices. They become less accurate during walking, exercise, or significant finger movement. For clinical decisions, always compare against a hospital-grade fingertip oximeter.
Which finger gives the most accurate reading for a pulse oximeter?
The index finger and thumb typically give the most accurate readings for ring pulse oximeters. The middle finger is also a good choice. Ring oximeters should sit snugly without being too tight, and the sensor should make full contact with your skin on the pad of the finger.
How long does the battery last on ring pulse oximeters?
Battery life varies widely. Most ring pulse oximeters last 12-16 hours per charge, which covers a full night of sleep. The Wellue Checkme O2 Max stands out with 72 hours of battery life, while the Wellue O2Ring-S offers 24 hours for multi-night monitoring.
Final Verdict: Which Ring Pulse Oximeter Should You Buy in 2026?
After three months of testing eight ring pulse oximeters, the Wellue O2Ring remains my top pick for the best ring pulse oximeters category. It delivers the best balance of accuracy, comfort, app quality, and reliability for overnight sleep monitoring.
If battery life is your priority, the Wellue Checkme O2 Max with 72 hours of recording is unmatched. Budget shoppers should look at the Vibeat WearO2, which delivers solid core features at the lowest price. The Wellue O2Ring-S sits in the middle with 24-hour battery life and the smoothest 200Hz data sampling.
None of these ring pulse oximeters are medical devices, so for diagnosed conditions always confirm readings with your doctor. For everyone else looking to track overnight SpO2, any of the eight models in this guide will give you reliable data you can act on.