Pulse Oximeter - Beat & Oxygen

PVDApps

Contains adsIn-app purchases

About this app

Check your oxygen saturation and heart rate anytime, anywhere with the Pulse Oximeter app and your built-in sensor - at your home or office - when you wake up, relax, before and after exercise.

This app only works with built-in sensors on these Samsung devices: Galaxy Note4/Edge/5/7/8/9 and Galaxy S6/7/8/9/10 include plus variant.

App used an advanced algorithm to calculate oxygen saturation from the sensor's raw infrared and red signal output, similar to how a dedicated pulse oximeter works.

Instant and excellent for monitoring your fitness.

FEATURES:
- Measure range for SPO2: 70%-100%, for heart rate: 30-190 BPM.
- Fast or continuous measurement.
- Save results with tags for access later.
- Real-time pulse graph (PPG - photoplethysmogram).
- Reminder: Automatic reminds you to measure your oxygen saturation and heartbeat daily.
- Share your heart rate and SPO2 screenshot on social media.
- Export history to CSV or PDF file format; PDF format includes PPG graph. (Paid feature).
- Back up, restore and transfer your data. (Paid feature)

Please note that the free version allows only 3-5 measurements daily with ads display; you can purchase IN-APP to get unlimited measurement, additional features, and no ads.

VERIFY AND CALIBRATION:
- "Hold the breath" will reduce your blood oxygen level; for most people, it's safe to hold your breath for a minute.
We tested with the "hold the breath" method for 30 seconds, the oxygen saturation will go down to about 94%, but it depends on your condition.
Open app Settings, change the "Auto-stop after" option to 2 minutes, and you can start the testing.
You can see our test video: https://youtu.be/fVtCBf-8DfI and https://youtu.be/M9q8iCyw9uI.
- Calibrate the app: choose the option in Settings -> Calibration -> "Alternative" or another variant; if you see the result higher/lower than expected, you can also compare it to other devices at the same time (one on the left hand, one on the right hand, each finger with one device).
You can try the "hold the breath" method to calibrate the app.
- Recommend calibration:
'Default': S6, S9, S9+, S10, S10+, Note5, Note9
'Alternative': S8, S8+, Note7/FE, Note8
'Alternative 2': Note4, S7, S7 Edge

DISCLAIMER:
- Note that the built-in sensor in the phone has limitations, so this app will never replace a medical-grade pulse oximeter.
- Our app should not be used as a medical device/product; designed for general fitness and wellness purposes only.
Consult your doctor or primary care physician if you require medical purposes.
- Our app is not intended for use in diagnosing disease or other conditions or in the cure, mitigation, treatment, or prevention of disease.
- Our app is not tested/verified accuracy on all supported devices; please use it at your own risk.

*** We welcome your ideas and suggestions; please email us at: [e-mail]

Ratings and reviews

If your device supports it (Samsung Note 4 through 9 and Galaxy S6 through S10 according to the developer), this app is an improvement over Samsung Health's pulse ox module - it provides a history, which can be exported (a premium feature, but not expensive). Plus it's quick to use and can be calibrated to some extent (though I haven't done this myself).

It's good and fairly accurate as it turns out. The only issue I have is that the SPO2 and BPM markers don't align on the graph, such as when you view week or month graph. Say I do a reading where both measurements are taken, like normal, they will be aligned to different times on the graph, even though they actually say the same time when tapping on them. The first graph on the History tab that shows the last 7 or so readings is aligned however.

If you want a Pulse Oximeter for real actual use (not just somewhere to record SPO² readings) then this is the only app that I would recommend. In fact, this seems to be the only app out there which can do this. Using end of fingertip (rather than whole fingerprint surface) gives same reading as my smartwatch - and is worth the $2.99 for lifetime access, especially if you have not got access to a smartwatch, or want reassurance from a second measuring device.

What’s new

- Bug fixes & Performance improvements.
- Support Android 14.
- You can export History to PDF file format with PPG waveform (premium only). Share the heart rate/SPO2 measurement on social media as an image.
- Calibrate the SPO2 result: choose option the Settings -> "Calibration" -> "Alternative" or other variant if you see the result higher/lower than expected.