Best Pulse Oximeters Of 2024 (2024)

It’s worth adding a pulse oximeter to your medicine cabinet, especially if you or someone in your home uses oxygen therapy or has certain chronic heart and lung conditions. Pulse oximeters measure and monitor the oxygen concentration in your blood. Since having low oxygen levels can be fatal after just a few minutes, it’s essential to know whether your body is getting enough.

These pulse oximeters stand out as our top picks for 2023.

1. Oxiline Pulse XS Pro

2. Oxiline Pulse MD Pro

3. Zacurate 500C Elite Fingertip Pulse Oximeter

4. Oxiline Pulse 9 Pro

5. Masimo MightySat Fingertip Pulse Oximeter

6. Concord Health Supply EAD Elite Fingertip Pulse Oximeter

7. AccuMed AC-FS10E Finger Pulse Oximeter

What Is a Pulse Oximeter?

A pulse oximeter is a device that measures your pulse rate and the percentage of oxygen in your blood—and shows digital readings for both in a matter of seconds. Pulse oximetry is a quick and painless indicator as to how well your body is working to move the oxygen from your heart to your extremities.

Oxygen is attached to hemoglobin, an iron-rich protein in red blood cells. Pulse oximetry measures the percent of hemoglobin saturated by oxygen, which is called oxygen saturation and is expressed as a percentage. If all of the binding sites on the hemoglobin molecule have oxygen, the hemoglobin is 100% saturated.

How Much Does a Pulse Oximeter Cost?

Pulse oximeters typically range in price from about $20 to $50, depending on the type of device selected and special features it may include. While some basic models can cost as low as $9 at third-party retailers like Walmart, others with special features like app tracking and multiple measurement units can cost upward of $200.

How Does a Pulse Oximeter Work?

When you insert your fingertip into a pulse oximeter, it uses two non-invasive LED lights—one red to measure deoxygenated blood and the other infrared to measure oxygenated blood. To calculate the oxygen saturation percentage, a photodetector reads the light absorption from these two beams of differing wavelengths.

Typically, an oxygen saturation level is considered normal between 95% and 100%. If it’s lower than 90%, one should seek immediate medical attention.

The FDA notes that these readings should be considered estimates of blood saturation and more accurate measurements can be provided by a blood test.

Different Types of Pulse Oximeters

There are two types of pulse oximeters:

• Transmission probes are used to measure blood oxygen through your fingers, toes and earlobes.
• Reflectance probes measure blood oxygen levels with an emitter and sensor that are placed side by side on a flat body surface with underlying bone (such as the forehead).

Pulse oximeters commonly used at home are finger monitors that are small and painlessly clipped onto your fingertip. They range in price and size and are sold by both brick-and-mortar and online retailers. Some can connect to a smartphone app for easy recording, data storage and sharing with your healthcare team, which can be helpful for people with chronic conditions or who use home oxygen therapy.

Pulse oximeters are available as a prescription or over-the-counter (OTC). Prescription oximeters must pass FDA inspection for quality and accuracy, and are typically used in a clinical setting—you need to have a prescription from your doctor for home use. Meanwhile, OTC pulse oximeters are not FDA regulated and are sold directly to the consumer online and at pharmacies.

Who Might Use a Pulse Oximeter?

While pulse oximeters are commonly used during an annual physical, health care providers may recommend people with lung or heart conditions keep one at home in order to track their oxygen levels regularly. Additional use cases for a pulse oximeter include:

• Surgery recovery
• Using certain medications that may cause reduced lung function and respiration
• Sleep apnea and other sleep disorders
• Conditions like congestive heart failure (CHF), chronic obstructive pulmonary disease (COPD), asthma, pneumonia, anemia, acute respiratory distress syndrome, lung cancer and others that can cause a decrease in blood oxygen levels

How to Choose the Best Pulse Oximeter

There are many brand choices and cost considerations for pulse oximeters. Here are some questions to ask when choosing a pulse oximeter for you and your family:

• Who will be using the device?
• Is the display easy to read?
• Will it be worn during sleep? Some models are more sleek and comfortable for continuous monitoring.
• Do you need it to alarm when levels are low? This feature is vital if worn while sleeping.
• Is the device bluetooth-enabled? If you have a chronic illness and need frequent monitoring, consider this option for storing and tracking results on your smartphone, making it easier to share them with your doctor.

The Benefits of a Pulse Oximeter

“Pulse oximeters are most useful for persons who have lung and heart problems, which can cause abnormal oxygen levels,” says Dianne L. Atkins, M.D., chair of the American Heart Association’s Emergency Cardiovascular Care Committee based in Iowa City, Iowa.

People on home oxygen should have one, she says, as well as infants with certain types of congenital heart disease, infants and children with tracheostomies or those on home ventilation.

“The use of pulse oximeters has been very useful during the COVID-19 pandemic once someone has tested positive,” adds Dr. Atkins. “In this situation, regular measurement can detect worsening lung function, which could indicate the need for more advanced care and possible hospitalization.”

Follow your doctors’ recommendations about when and how often to check oxygen levels.

How to Use a Pulse Oximeter

Pulse oximetry uses technology that measures oxygen saturation by illuminating the skin with two wavelengths of light—one red and one infrared. Deoxygenated blood absorbs red light, and oxygenated blood absorbs infrared light. The monitor uses an algorithm to determine oxygen saturation by differences in light absorption. Clips can be attached to certain sites of the body, commonly the fingertip, toes, earlobe and forehead to get readings.

For home use, the most common type is the fingertip pulse oximeter. Follow manufacturer guidelines for proper use because not all models are the same, but typically, you sit still, clip the small device to your fingertip and your reading will appear in less than a minute. Some models are meant for adult use only, while others can be used on children.

Since pulse oximetry relies on light absorption through a tissue bed with pulsating blood, some factors can interfere with those parameters, leading to a false reading, such as:

• Nail polish
• Movement
• Poor circulation
• Dark skin tone
• Cold hands
• A history of smoking

How to Read a Pulse Oximeter

All monitors have an electronic result display. There are two readings on a pulse oximeter—oxygen saturation percentage, abbreviated as SpO2, and pulse rate. The resting heart rate for a typical adult ranges from 60 to 100 beats per minute (often lower for athletes)—although a healthy resting heart rate is typically well below 90 bpm.

What’s a Normal Pulse Oximeter Reading?

The average oxygen saturation level for healthy individuals is between 95% and 100%, although people with chronic lung conditions may have a reading below 95%. A reading below 90% is considered a medical emergency and requires immediate treatment by a medical professional.

Don’t rely solely on a piece of medical equipment to tell you when something is wrong. Pay attention to other signs of low blood oxygen levels, such as:

• A dusky blue appearance of the face, lips or nails
• Shortness of breath or difficulty breathing
• A cough that gets worse
• Restlessness
• Chest pain or tightness
• A racing heart rate

References

• Tobin MJ, Laghi F, Jubran A. Why COVID-19 silent hypoxemia is baffling to physicians. Am J Respir Crit Care Med. 2020;202(3):356-360.
• Dean L. Blood and the Cells It Contains. National Center for Biotechnology Information. 2005.
• Collins J-A, Rudenski A, Gibson J, Howard L, O’Driscoll R. Relating oxygen partial pressure, saturation and content: the haemoglobin-oxygen dissociation curve. Breathe (Sheff). 2015;11(3):194-201.
• MacIntyre NR. Tissue hypoxia: implications for the respiratory clinician. Respir Care. 2014;59(10):1590-1596.
• Khan Y, Han D, Pierre A, et al. A flexible organic reflectance oximeter array. Proc Natl Acad Sci U S A. 2018;115(47):E11015-E11024.
• Dias D, Paulo Silva Cunha J. Wearable Health Devices-vital sign monitoring, systems and technologies. Sensors (Basel). 2018;18(8).
• Shah S, Majmudar K, Stein A, et al. Novel use of home pulse oximetry monitoring in COVID-19 patients discharged from the emergency department identifies need for hospitalization. Acad Emerg Med. 2020;27(8):681-692.
• Buekers J, Theunis J, De Boever P, et al. Wearable finger pulse oximetry for continuous oxygen saturation measurements during daily home routines of patients with chronic obstructive pulmonary disease (COPD) over one week: Observational study. JMIR MHealth UHealth. 2019;7(6):e12866.
• Martins SJ, Ho N, Cavamura SO, Harada CM, Yamamoto CA, Takagaki TY. Lung cancer symptoms and pulse oximetry in the prognostic assessment of patients with lung cancer. BMC Cancer. 2005;5(1):72 10.
• Chiang L-K. Overnight pulse oximetry for obstructive sleep apnea screening among patients with snoring in primary care setting: Clinical case report. Family Med Prim Care. 2018;7(5):1086-1089 11.
• Teo J. Early detection of silent hypoxia in covid-19 pneumonia using smartphone pulse oximetry. J Med Syst. 2020;44(8):134 12.
• Nitzan M, Romem A, Koppel R. Pulse oximetry: fundamentals and technology update. Med Devices (Auckl). 2014;7:231-239 13.
• Luks AM, Swenson ER. Pulse oximetry for monitoring patients with COVID-19 at home. Potential pitfalls and practical guidance. Ann Am Thorac Soc. 2020;17(9):1040-1046.
• DeMeulenaere S. Pulse oximetry: Uses and limitations. J Nurse Pract. 2007;3(5):312-317.
• Cerebral hypoxia. U.S. National Library of Medicine. Accessed 08/09/2021.
• Oximetry P. PATIENT EDUCATION | INFORMATION SERIES. American Thoracic Society. Accessed 08/09/2021.
• Pulse Oximetry. U.S. National Library of Medicine. Accessed 08/09/2021.
• Pulse Oximeter Accuracy and Limitations. U.S. Food and Drug Administration.. Accessed 08/09/2021.
• All About Heart Rate (Pulse). American Heart Association. Accessed 08/09/2021.
• The Basics of Oxygen Monitoring and Oxygen Therapy During the Covid-19 Pandemic. Centers for Disease Control and Prevention. Accessed 08/09/2021.
• Center for Devices, Radiological Health. Pulse Oximeter Accuracy and Limitations. U.S. Food and Drug Administration. Accessed 08/09/2021.
• Anupama B, Ravishankar K. Working mechanism and utility of pulse oximeter. Sportscienceresearch.com. Accessed 08/14/2021.
• A Comparison of Transmittance and Reflectance Pulse Oximetry During Vascular Surgery. Lww.com. Accessed 08/14/2021.
• Pulse Oximetry. Yale Medicine. Accessed 1/31/2023.
• Pulse Oximetry. American Lung Association.