10 Reviews: Best Pulse Oximeter for Overnight Monitoring (Sep 2023)
This guide is here to help you choose the right overnight oximeters for you and your family. Now you can sleep soundly knowing your pulse rate is in the normal category.
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price $19.99 - $446.70
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Comparison Table
Product Image |
1
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Metene |
2
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Santamedical |
3
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EMAY |
4
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Garmin |
5
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FORA |
6
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Wellue |
7
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Wellue |
8
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Wellue |
9
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CPAP |
10
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Apple |
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Product Name | Pulse Oximeter Fingertip | Fingertip Pulse Oximeter | Sleep Oxygen Monitor | Vivosmart 4 | O2 SpO2 Bluetooth 4.0 Fingertip Pulse Oximeter | WearO2 Wearable Health Monitor | O2Ring Wearable Sleep Monitor | SleepU™ Oxygen Saturation Monitor | BodiMetrics CIRCUL Sleep & Fitness Ring Tracker | New Apple Watch Series 6 |
13 | 12 | 45 | 38 | 22 | 8 | 17 | 22 | 10 | 9 | |
Features | The most affordable | Great for all age | No need real-time connection | Won't disturb your sleep | Great for those with sleep disorders | Best wearable oximeters | Best ring oximeter | Bracelet or ring? Both | Sweat and waterproof | Stay healthy in style |
Result | 5-8s | 8-10s | 10s | n/a | n/a | n/a | n/a | n/a | n/a | 15s |
Power Source | 2 AAA batteries | 2 AAA batteries | 2 AAA batteries | 1 A batteries | n/a | Rechargeable battery | Rechargeable battery | Rechargeable battery | Rechargeable battery | Rechargeable battery |
Continuous monitoring | n/a | 30+ hours | 40 hours | 14 days | n/a | 16 hours | 4 x 10 hours | 4 x 10 hours | n/a | Up to 18 hours |
Type | Fingertip | Fingertip | Fingertip | Wrist | Fingertip | Ring | Ring | Wrist and ring | Ring | Wrist-based |
Mobile apps | No | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Weight | 2.72 oz | 2.47 oz | 0.35 oz | 0.64 oz | n/a | 4.97 oz | 4.16 oz | 4.8 oz | 4 oz | 1.08 oz |
price | $19.99 | $21.95 | $59.00 | $113.50 | $119.00 | $119.99 | $179.99 | $179.99 | $299.99 | $446.70 |
Buy at | view product on Metene view product on Amazon view product on eBay | view product on Amazon view product on eBay | view product on EMAY view product on Amazon view product on eBay | view product on Garmin view product on Amazon view product on eBay | view product on FORA view product on Amazon view product on eBay | view product on Wellue view product on Amazon view product on eBay | view product on Wellue view product on Amazon view product on eBay | view product on Wellue view product on Amazon view product on eBay | view product on CPAP view product on Amazon view product on eBay | view product on Apple view product on Amazon view product on eBay |
If you are concerned that your oxygen levels will fall below normal while you sleep, an overnight pulse oximeter is an excellent solution. Because pulse oximeters are in high demand, you should be wary of many low-cost models available on the internet that don’t do much to measure accurately. As a result, we have compiled a list of the best oximeters that provide accurate results as well as peace of mind. These devices are intended for overnight oxygen saturation monitoring so you can see how well you slept. Continue reading to find the suitable one for you!
Table of contents
Product list
- Metene Pulse Oximeter Fingertip: The most affordable
- Santamedical Fingertip Pulse Oximeter: Great for all age
- EMAY Sleep Oxygen Monitor : No need real-time connection
- Garmin Vivosmart 4: Won't disturb your sleep
- FORA O2 SpO2 Bluetooth 4.0 Fingertip Pulse Oximeter: Great for those with sleep disorders
- Wellue WearO2 Wearable Health Monitor : Best wearable oximeters
- Wellue O2Ring Wearable Sleep Monitor: Best ring oximeter
- Wellue SleepU™ Oxygen Saturation Monitor : Bracelet or ring? Both
- CPAP BodiMetrics CIRCUL Sleep & Fitness Ring Tracker : Sweat and waterproof
- Apple New Apple Watch Series 6: Stay healthy in style
Frequently Asked Questions (FAQs)
In case you want to know..
How do pulse oximeters work?
A pulse oximeter is a small device to monitor oxygen levels and is placed on a finger, toe, or forehead. This tool tests how fast your heart beats and how well you breathe. The latter involves checking how much oxygen is in the blood.
What is the safe range of the pulse rate?
The normal pulse rate is said to be between 60 to 100, which means that the heart beats 60-100 times per minute. While the normal reading for the oxygen level ranges from 95% to 100%. A level of 92 percent indicates potential hypoxemia or deficiency in oxygen reaching tissues in the body.
How do I use a pulse oximeter?
To produce an accurate result, the FDA says you should make sure your hand is warm to the touch then rest it on your chest for five minutes. Switch the device on and attach the clip to the index or middle finger. Sit still and wait for the numbers to come out.
What features should a pulse oximeter have?
The most crucial thing you should make sure of before checking out any pulse oximeter is its accuracy. The right device can give you accurate results as well as fast readings. Other features such as an alarm or water-resistance are optional. In addition, you can adjust the price of the oximeter according to your budget.
10 Reviews: Best Pulse Oximeter for Overnight Monitoring (Sep 2023)

1.Metene
Pulse Oximeter Fingertip
The most affordable
Well, while the Metene Pulse Oximeter from Fingertip cannot be used overnight, its accuracy and reading speed will make it easy for you to check your pulse rate when you wake up in the middle of the night. A soft LED light is also included to match the all-white color scheme, which makes it suitable for nighttime use and prevents you from becoming blinded by the light. In addition, the price is really affordable as well.
"As someone who has sleep apnea it's of great importance to keep an eye on my vitals. This was a great way to check my oxygen levels!"
by Sara Dunegan
Result | 5-8s |
---|---|
Power Source | 2 AAA batteries |
Continuous monitoring | n/a |
Type | Fingertip |
Mobile apps | No |
Weight | 2.72 oz |

2.Santamedical
Fingertip Pulse Oximeter
Great for all age
The Fingertip Pulse Oximeter is supplied with batteries and has a continuous running time of up to 30 hours when using the batteries. Easy to use, cost-effective, and providing reliable readings, this compact device has all of the features you’re looking for. Santamedical created the finger chamber in the most efficient manner possible so that it may be used by people of all ages and with a variety of finger sizes.
"...I like that it has a red display and selected this model specifically for that reason. With all the research about blue light and melatonin suppression, it’s good to know I can use this at night with minimal impact on my sleep."
Result | 8-10s |
---|---|
Power Source | 2 AAA batteries |
Continuous monitoring | 30+ hours |
Type | Fingertip |
Mobile apps | No |
Weight | 2.47 oz |

3.EMAY
Sleep Oxygen Monitor
No need real-time connection
The EMAY Sleep Oxygen Monitor is designed to “store overnight and continuous blood oxygen saturation levels & heart rate during sleep or other occasions.” What’s more impressive is, you don’t need a real-time connection to your smartphone. You can use it first and sync later with no problem. This feature is certainly a relief for users who often forget to connect the oximeter to the device.
"I used the oximeter for 10 days to get a better understanding of my Sp02 overnight and to attempt different sleeping methods to mitigate mild AHI incidents. This product saved me time and money, especially with the reporting; overall, this was a great investment."
by ginley88
Result | 10s |
---|---|
Power Source | 2 AAA batteries |
Continuous monitoring | 40 hours |
Type | Fingertip |
Mobile apps | Yes |
Weight | 0.35 oz |

4.Garmin
Vivosmart 4
Won't disturb your sleep
Some people avoid using the fingertip oximeter for fear of it falling or being uncomfortable while sleeping. That’s why Garmin presents the Vivosmart 4, which continuously monitors your blood oxygen saturation, heart rate, and sleep as well as your energy and stress levels. Because it is worn on your wrist, you can sleep in various positions without worrying about it falling, or having your fingers hurt from being clipped.
"I LOVE this watch. I love how it stays charged for a week and that’s the only time I have to take it off. I love how it syncs with my iPhone but is small and pretty on my wrist. I love how accurately it tracks my movement and workouts and sleep, and syncs instantly the data to my phone! Even my pulse ox! And it is an incredible price for all that it does."
by Kristen Hunt
Result | n/a |
---|---|
Power Source | 1 A batteries |
Continuous monitoring | 14 days |
Type | Wrist |
Mobile apps | Yes |
Weight | 0.64 oz |

5.FORA
O2 SpO2 Bluetooth 4.0 Fingertip Pulse Oximeter
Great for those with sleep disorders
FORA O2 SpO2 is a smart oximeter that does more than just calculate blood oxygen level and pulse rate. It also measures other parameters such as temperature and humidity. This gadget comes with a free mobile app that may be used to perform sleep Sp02 measurement, heart rate variability analysis, and resonant breathing, among other functions. Those who suffer from sleep apnea, CPAP use, and other sleep disorders will find this feature highly useful. Excellent for monitoring over the night.
"This pulse oximeter is quite accurate. The app can provide plenty of useful info for me to track the situation of my sleep. After using the accessory, I found that it is better and more comfortable to use. Very nice."
by Carrie
Result | n/a |
---|---|
Power Source | n/a |
Continuous monitoring | n/a |
Type | Fingertip |
Mobile apps | Yes |
Weight | n/a |

6.Wellue
WearO2 Wearable Health Monitor
Best wearable oximeters
It’s not a sin to call Wellue WearO2 the best wearable oximeters. Comes with a soft ring sensor, this tiny device will never go off your finger. Its modern design is equipped with a rechargeable battery that provides up to 16 hours of recording. All data regarding O2, heart rate, and motion can be synced over Bluetooth to its mobile application. Still not enough? This unit is waterproof so it is protected from water spray
"As one who suffers from Pulmunary conditions for quite sometimes, I don’t always notice when I’m short of breath especially when I’m sleeping. This device does a great job or recording my movement, heart rate and oxygen levels while I “sleep”. Great way of gathering information for your next doctors appointment."
Result | n/a |
---|---|
Power Source | Rechargeable battery |
Continuous monitoring | 16 hours |
Type | Ring |
Mobile apps | Yes |
Weight | 4.97 oz |

7.Wellue
O2Ring Wearable Sleep Monitor
Best ring oximeter
When it comes to ring sensor oxygen monitors, there’s nothing better than the Wellue O2Ring Oxygen Monitor. The shape is super compact and doesn’t even look like a medical device. It stays on securely throughout the night to track your blood oxygen levels, heart rate, and body movements which you can export in detailed PDF reports. What’s more, it sends a vibration to your hand to alert you to low oxygen.
"... This has helped me find the best sleeping position to get the best O2 overnight. It has also alleviate my fears of sleep apnea. Its been well worth the purchase and I recommend the product!"
Result | n/a |
---|---|
Power Source | Rechargeable battery |
Continuous monitoring | 4 x 10 hours |
Type | Ring |
Mobile apps | Yes |
Weight | 4.16 oz |

8.Wellue
SleepU™ Oxygen Saturation Monitor
Bracelet or ring? Both
Unlike the others, this device is fastened to your wrist with an adjustable strap, which is connected to a ring sensor that is worn on your finger or thumb. This makes it special from the others. You’ll be able to wear it all night without feeling uncomfortable. If the Wellue SleepU™ is active, it is capable of constantly monitoring a patient’s oxygenation levels and heart rate for up to 16 hours at a time without interruption.
"This product is an extremely valuable addition to my sleep-monitoring regimen. It gives me peace of mind that my CPAP equipment is doing the job intended....to get me good oxygen levels, overnight. Would highly recommend! It has saved me a couple of sleep clinic visits and the associated costs. Customer service is outstanding."
Result | n/a |
---|---|
Power Source | Rechargeable battery |
Continuous monitoring | 4 x 10 hours |
Type | Wrist and ring |
Mobile apps | Yes |
Weight | 4.8 oz |

9.CPAP
BodiMetrics CIRCUL Sleep & Fitness Ring Tracker
Sweat and waterproof
The CIRCUL Ring allows you to understand how your previous night of sleep went. This small, all-black device tracks your AHI and blood oxygen levels so that you have an insight into how your sleep quality from night to night. Sleep mode and workout mode are available and you can adjust them to your activities. Furthermore, the unit is sweat and waterproof; you can wear this anytime you desire.
"... The first time I wore the ring overnight, I wasn't sure what to expect from the reports. I was WOWED when I saw them the next morning. The reports and graphs on my SpO2 and pulse rate (BPM - beats per minute) were extremely clear and easy to read. ..."
Result | n/a |
---|---|
Power Source | Rechargeable battery |
Continuous monitoring | n/a |
Type | Ring |
Mobile apps | Yes |
Weight | 4 oz |

10.Apple
New Apple Watch Series 6
Stay healthy in style
This one isn’t designed for medical use but it can give you the function you’re looking for. The Apple Watch Series 6 is equipped with motion sensors to measure how you sleep. Recently, Apple adds a pulse oximeter that uses a cluster of four IR LEDs that take a SpO2 measurement in just 15 seconds, and that can monitor the values 24/7. Of course, this smartwatch has many other features that will benefit you a lot if you have no problem with your budget.
"... The heart rate, ECG and blood-oxygen monitoring features are wonderful tools to have at your disposal. The most life-changing for me, though, has been the activity monitoring: closing my activity rings every day is helping me to be more fitness-focused, which in turn has led to better overall quality of life."
by bbfla
Result | 15s |
---|---|
Power Source | Rechargeable battery |
Continuous monitoring | Up to 18 hours |
Type | Wrist-based |
Mobile apps | Yes |
Weight | 1.08 oz |
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Conclusion
Amid this never-ending pandemic, an oximeter is essential for every household. Apart from giving an alert when your oxygen levels drop, this device also helps your medical professionals understand the day-to-day fluctuations to ensure your therapies are working. We have chosen all of those products carefully and we hope you can find the best deals. Stay safe, stay healthy!