If you are struggling with breathlessness or have a heart defect, an NHS-approved pulse oximeter is a fantastic way to monitor your health. Having a pulse oximeter at home can provide you and your family with peace of mind, allowing for regular checks without the need for frequent visits to healthcare facilities. A pulse oximeter is a health gadget that allows you to monitor the oxygen levels in your blood. The NHS and doctors widely use this medical device to diagnose or monitor lung disease, as well as to monitor patients at home with various respiratory conditions. • Best overall pulse oximeter: Braun Healthcare Pulse Oximeter - Buy now on Amazon UK Lindsey Ulin is a resident physician and primary care provider at Brigham and Women's hospital, and she regularly uses pulse oximeters in her work with patients. She says when it comes to choosing a pulse oximeter, more expensive isn't necessarily better. "There are many pulse oximeters on the market and you shouldn't feel the need to purchase the more expensive models to get accurate measurements at home. The Medicines and Healthcare Products Regulatory Agency (MHRA) does not approve medical devices like pulse oximeters directly, but you can look for a CE, CE UKNI or UKCA mark on the pulse oximeter to show market approval by an external body. I recommend buying from a credited source, and reading the reviews if you purchase a pulse oximeter online." Home health and fitness trackers are also growing in popularity. These devices offer various features for monitoring well-being and fitness. This information is crucial for assessing respiratory health, and keeping a regular eye on your oxygen levels can be an early indicator of respiratory issues. Whilst pulse oximeters are valuable tools for monitoring oxygen levels, they should not replace professional medical advice; rather, they are a great way to keep an eye on your levels. We've pulled together a useful guide to the best NHS-approved pulse oximeters plus Lindsey Ulin talks us through how to use one, what the readings mean, and what to look for when buying. Members of the Yours team and their family have tried-and-tested these oximeters. We sourced these oximeters and used them for an extended period. We then considered several factors, including their accuracy, ease of use, convenience, and comfort. All our reviews are honest and genuine, and we’ve included both the positive and negative comments we received from our reviewers.Best NHS-approved pulse oximeters at a glance:
• Best 5-in-1 pulse oximeter: Med Linket Oxygen Saturation Monitor – Buy now on Amazon UK
• Best battery life: Salter Finger Tip Pulse Oximeter OxyWatch – Buy now on Amazon UKHow we tested these oximeters
Best NHS-approved pulse oximeters
Tested
This pulse oximeter features 5-in-1 health monitoring to provide readings for SpO2, body temperature, heart rate, perfusion index (blood flow) and plethysmograph (changes in volume - useful for checking for blood clots).
We like that this oximeter has an anti-shake function to help with trembling hands or active children and has been tested on different ages and skin colours for accurate measurements, because there's been a lot of research showing pulse oximeters might give inaccurate readings for non-white patients.
Our tester says: "My first impression of this oximeter was that it looked cheap. I'm not quite sure what I was expecting, though! This was so simple to set up that I didn’t even read the instructions. It gives off a clear reading of your oxygen levels, heart rate and temperature. To record the temperature, you need to plug the probe in which I did need to read in the instructions! The product requires two AAA batteries, which do not come supplied, so this was a little bit disappointing when you are paying around £30 for it.
"The oximeter gives a quick and accurate reading, is suitable for anyone over three years old and caters to any skin colour. This product will not work as well if the user has artificial nails. The oximeter does not store information and will shut down after eight seconds if not active. There was no pain when using this product and an alarm will sound if you have abnormal oxygen levels. Med Linket is a leading manufacturer and exporter of medical cables. This product is CE-certified."
Pros
- Offers five-in-one accurate readings
- Alarm for abnormal O2 level readings
- Booklet explaining testing process
Cons
- Batteries not included
- The thermometer option can be a bit fiddly to use
| SpO2 measurement range: | 70-100% |
| SpO2 accuracy: | +/- 2-3% |
| PR measurement range: | 25-250bpm |
| Accuracy: | +/- 3bpm |
| Power: | requires two AAA alkaline batteries |
Tested
Best battery life
Yours.co.uk
The Salter Oximeter "OxyWatch" is packaged in a small, compact box and is ideal for taking on the go with you if you regularly need to check your heart rate and oxygen levels. It also comes with a lanyard, making it both portable and wearable.
I found the setup to be extremely fast, plus batteries are included and you don't need a screwdriver to open the device and add them in. The results are instant - all that’s required is a press of a button once you clip it onto your finger. Plus, it’s not painful at all, as it has a plastic exterior and interior which is smooth on your skin.
Although the OLED screen is rather small, I did not have any issue reading it, although someone who is visually impaired may struggle to. it does have adjustable brightness levels. It's quick and easy to use and you don’t need a smartphone to connect it to, but that being said, it doesn’t store any data from previous readings.
The batteries last for ages and it has a small battery icon on the display to let you know how much power is left. It has a low-power consumption and automatically turns itself off after a few seconds (once you’ve disconnected it from your finger). Over the four weeks of using it everyday, I haven't had to change the batteries, which is important if you need to use this regularly to monitor your health.
Other reviewers have checked its results for accuracy and are pleased: "It has exceeded my expectations in terms of accuracy and reliability. I have tested it against the NHS equivalent within a hospital, giving me the confidence to rely on its readings."
Pros
- Batteries are included
- Automatic power-off function
- Lightweight
- Compact design
Cons
- Small display, which may be tricky to read
| SpO2 measurement range: | 70-100% |
| SpO2 accuracy: | +/- 2% |
| PR measurement range: | 30-250bpm |
| Accuracy: | +/- 2bpm |
| Power: | requires one AAA alkaline battery |
Tested
Alternative retailers
Very£21.99View offer
The finger pulse Kinetik Oximeter, used by the NHS and in association with St John Ambulance, accurately measures SpO2 and pulse rate. It can be used continuously for more than 24 hours.
Reviewed by Senior Digital Writer Becky Fuller: "This was really easy to set up and use. Although it said to insert batteries it actually already had some. The unit has a switch on the front, the display lights up, and then you pop it on your finger. It only takes a few seconds for the reading to appear, and I found it was best to sit still for a moment more to make sure the reading had settled properly. I tested this on myself and my adult daughter, and we tested the readings against our smartwatch readings as well. They were both accurate to each other within one beat, so I’d say it’s an accurate pulse reader. This also comes with a strap so you can keep it on you if you have any health concerns and might need to access it quickly."
Pros
- Clinically validated and used by NHS Scotland
- Easy to use and has a large and clear display
Cons
- Customers have mixed opinions about its accuracy
Tested
Best oximeter for an on-the-spot reading
Yours/Anapulse
The Anapulse 100 Finger Pulse Oximeter is a lightweight device that comes with a carry case and lanyard. It gives a fast and accurate reading. Weighing just 50g it can be carried anywhere in your pocket and used for times when you need to check your oxygen levels.
Reviewed by Features & Reviews Editor Samantha Ball: "I’m not the most tech-savvy, but the Anapulse 100 Oximeter was surprisingly simple to set up. The results on the screen are also easy to read, even when you’re slightly visually impaired.
"It may seem expensive for what it is, as there are cheaper alternatives, but they might not perform the same. This one can also be used for 24 hours if needed, and there is a clip so you can attach it to your belt, which, with a cheaper machine, you probably couldn’t do.
"One downside is that it doesn’t store the reading, so if you want to keep track, you have to write the reading down. However, it is very comfortable to wear and is battery-operated, meaning you can take it on the go. It doesn’t have an alarm, which isn’t essential as you can make note of the results. I’m unsure if it’s medically certified, as it doesn’t state, or whether it works on all skin tones, but I can imagine it does."
Pros
- Small, lightweight and portable
- Good value for money
Cons
- Some customers found it gave inaccurate readings
We're currently testing the oximeters listed below and will update this page with our findings. We still wanted to include them in this round-up as they have received some great reviews online.NHS-approved pulse oximeters we're currently testing
Best overall pulse oximeter
The Braun pulse oximeter is comfortable, clear, and convenient to use. We love the simple, single-finger clip design which enables you to take readings effortlessly and accurately. The display is brightly back-lit and it also rotates, so it allows you to see your results with ease.
Reviewers love the speed of this device and also its accuracy. Ulin recommends cross-referencing the results of your home pulse oximeter with your GP's, and this reviewer did just that, stating:
"I compared results with my GP’s device in surgery during a visit and found the results spot-on with her device. Perfect confirmation that the results provided are accurate. You cannot ask for more than that!"
For simplicity, ease of use and accuracy, the Braun pulse oximeter is our top choice overall.
Pros
- Clinically validated accuracy
- Simple to use
- Bright back-lit display
Cons
- Doesn't come with a protective pouch or case for storage
| SpO2 measurement range: | 80-100% |
| SpO2 accuracy: | +/- 2% |
| PR measurement range: | 25-250bpm |
| Accuracy: | +/- 1bpm |
| Power: | requires two AAA alkaline batteries |
Best smartphone-compatible oximeter
If you're tech-savvy, then a pulse oximeter that links to your smart phone might be just the thing for you. Not only will this ViATOM pulse oximeter provide readings in the moment, you can also measure, manage and track SpO2 and pulse rate readings in the accompanying app with a detailed history report of your readings.
This is especially useful for taking along to GP or consultant appointments, or monitoring your respiratory rate over a longer period. The app also integrates with Apple Health, so can link with Apple Watch data as well.
Reviews praise ease of use, clarity and how easy it is to link to the app: "The app was extremely easy to set up. I have an iPhone 11, just installed the app, opened it and when prompted said it was OK for it to access Bluetooth. Then I turned the oximeter on, it instantly showed up in the app and a quick tap later and it was paired. Looking in the settings of the app I found an Apple Health option, I switched that on and then could see the results instantly appear in the health app."
Pros
- Batteries included
- Warnings when readings are irregular
- Records readings on your phone
Cons
- Smartphone required
| SpO2 measurement range: | 70-100% |
| SpO2 accuracy: | +/- 2% |
| PR measurement range: | 25-250bpm |
| Accuracy: | +/- 2bpm |
| Power: | requires two AAA alkaline batteries |
Best pulse oximeter for the whole family
As well as providing quick results and measurements, this aCurio pulse oximeter is suitable for anyone over the age of four, making it perfect for the whole family. Personally, we have one pule oximeter in our family that's used by parents, children and grandchildren as needed.
It takes about 8 seconds for the reading to come through, and the display is bright red. This is easy to read for some but not others, so make sure that's suitable for you first.
Most reviewers have praised this for easy of use, like this one: "easy to read and easy to use. I feel it has given me peace of mind." But some have said it's not as accurate as medical devices. Also, it;'s worth noting it doesn't come with batteries - you'll need 2 x AAA batteries to get started.
Pros
- Large font makes it easy for people to read
- Suitable for the whole family
- Small and portable
Cons
- Batteries not included
| SpO2 measurement range: | 70-100% |
| SpO2 accuracy: | +/- 3% |
| PR measurement range: | 30-250bpm |
| Accuracy: | +/- 1bpm |
| Power: | requires two AAA alkaline batteries |
Best budget NHS-approved oximeter
Suitable for all ages, this pulse oximeter has been used by health professionals across the UK, including doctors and nurses in NHS hospitals and private surgeries. CE-certified and FDA-approved, this oximeter accommodates a wide range of finger sizes and is one of the most accurate to buy, as this review attests:
"Shortly after receiving this monitor, we had cause to compare it to the equipment used by the ambulance service. Side by side, they provided the same reading, which gave us confidence in the monitor and the results it produces."
Like most pulse oximeters it's reasonably priced, but we like that it comes with batteries included, making it slightly better value for money. You can also rotate the screen, which we like as it's so much easier to read.
Pros
- Suitable for adults and children who weigh 20kg+
- Batteries included
- Used by Health professionals across the UK
Cons
- Some reviews mention the instructions are difficult to follow when you first receive it
| SpO2 measurement range: | 0-100% |
| SpO2 accuracy: | +/- 1% |
| PR measurement range: | 30-250bpm |
| Power: | requires two AAA alkaline batteries |
Best portable/ wearable pulse oximeter
We like the TRAN Pulse Oximeter because it comes with a lanyard you can attach, making it easily portable. For example, if you need to monitor your oxygen levels while walking, you can just clip it around your neck and off you go.
It doesn't come with batteries, but reviews call it "good quality, very sturdy," and state that it "doesn't feel cheap, does the job and is easy to use." Readings match with devices used by GPs. It has a handy heart rate and Sats guide included, so you can see where your measurements lie and will know when to raise any concerns with your GP.
Pros
- Lightweight
- Portable
- Easy to clean
Cons
- Batteries not included
| SpO2 measurement range: | - |
| PR measurement range: | - |
| Accuracy: | - |
| Power: | requires two AAA alkaline batteries |
• Wash your hands before using. • Make sure the finger you are going to use does not have a fake nail or nail varnish on it. • Sit down comfortably. Make sure your hand is warm to the touch then rest it on your chest for five minutes. • Switch the pulse oximeter on. • Then attach the clip to the finger next to your thumb, or your middle finger. • Keep still for at least a minute. If the numbers keep fluctuating, you may need to be still for longer. Once the numbers remain steady, you have your reading. • Record the two numbers you see. One is your oxygen saturation level, and the other is your heart rate. Each will be clearly labelled on the device. • Remove the device from your finger and store it in a safe place. • Do you have darker skin tone? Only 1 in 3 oximeters give accurate readings on darker skin so make sure your one does. Yours spoke to Lindsey Ulin, Physician from Brigham and Women's hospital, to get the answers to all the important questions about pulse oximeters. If you're unsure whether or not you need to use an NHS-approved pulse oximeter, you should always contact your GP or a health professional. As an oximeter is a tool used to help with the diagnosis of COVID-19, monitoring sleep apnoea and more, it's essential that you find out what risks most apply to you and discuss any concerns that you might have. According to the NHS website, "A pulse oximeter is a small medical device that is put on the tip of the finger, to check someone's oxygen levels. Pulse oximeters measure blood oxygen levels by transmitting light through a finger – they are more accurate than smartwatches or phones, which make less accurate readings by reflecting light off the skin." When you come to purchase an oximeter, it's a good idea to look for one that is NHS approved and comes from a reputable retailer. A clear, easy-to read screen is important - the last thing you want to be doing is squinting or trying to find your glasses to read the numbers. Think about what you need it for - is it just to monitor blood oxygen levels, or do you want a device that also records heart rate, blood pressure and more? Ulin says: "Pulse oximeters are easy to use. Before your first use, see if the device needs batteries which may not be included in the packaging. First, clean the device with a soft cloth or a cotton swab with rubbing alcohol. Place your index finger into the finger pad in the device with your fingernail facing up. Wait for the pulse oximeter to display the two numbers on its screen." "Place the device on your index finger. If numbers do not appear after a few moments or the numbers are abnormal, try again on your middle, ring, or pinky fingers. Clean the device again after using it." Please note: Pulse oximeters may not be accurate for people with dark skin tones, or who have nail polish on, cold skin, poor circulation, or tattoos near the sensors. Pulse oximeters used in medical settings or hospitals are high-quality and likely to give you the most accurate reading. Pulse oximeters are available for sale in your local chemist or online for use at home, and while they will record your oxygen levels, some can be inaccurate or give poor readings if used incorrectly. It is important to invest in one that has been NHS-approved, comes from a reputable retailer or has been recognised for its quality. While it may not be necessary for everyone, this gadget could be used by individuals with underlying respiratory issues who may want to monitor or assess the severity of attacks or physically active people who experience regular drops in oxygen levels. Ulin recommends checking the accuracy of your home device with your GP: "Consider bringing your pulse oximeter to your next doctor's appointment to compare its reading with the monitor in the office." "Pulse oximeters display two numbers, one is the heart rate which usually has a PR standing for pulse rate and will show how many times your heart beats per minute. The other number is blood oxygen saturation which appears next to SpO2 % and measures the amount of oxygen carried by your red blood cells." "Oxygen saturation levels of 95 percent and above are normal for most people. However, if you have certain chronic conditions like chronic obstructive pulmonary disease (COPD) or sleep apnea, your normal oxygen level may be closer to 90 percent. Check with your healthcare provider if you are not sure what your normal level should be." "Seek medical attention immediately if your oxygenation level on your pulse oximeter is below 90 percent. Oxygen levels of 91 to 94 percent may be a sign of a concerning medical problem even before symptoms start and warrant evaluation by a healthcare provider such as your GP nurse." Want to use an oximeter from the comfort of your own home? You can measure your pulse rate and oxygen levels by clipping the oximeter to your fingertip. Once it's attached to you securely, switch it on and wait a short time for the results to show. If you're still unsure how to get this device to work, the NHS has pulled together a six-minute video to show you how to use a pulse oximeter at home. We love that this video takes you step-by-step on how you can monitor your readings if you've been asked to use one by your GP or health professional. You can also track your healthy with a smartwatch device.NHS-approved pulse oximeter FAQs
How to use a oximeter
Ask the expert
What is an oximeter?
What to look for in an oximeter
How to use a pulse oximeter
What finger should I put there oximeter on?
Are oximeters accurate?
What are the two readings on a pulse oximeter?
What should your oxygen levels be?
What if your oxygen levels are too low?
How to use an oximeter at home:
Lindsey Ulin is an internal medicine resident physician and PCP at Brigham and Women's Hospital, affiliated with Harvard Medical School Eleanor Weaveris the Deputy Homes & Garden Product Editor for Yours, specialising in home décor, furnishings and appliances. Having worked commercially on Yours magazine andYours.co.ukfor the past six years, she's previously hosted Yours Live events and loves looking for home inspiration online.
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