Heart and breathing
Heart rate · breathing rate · HRV
The face scan
A check-in that starts with a look.
See the resultsYour phone’s front camera, in good light
Hold still for about 30 seconds
Wellness estimates, not a diagnosis
How the scan works
Nothing to wear and no needles. Just your phone.
01
A short profile, once
Before your first scan, you answer a few questions: age, sex, height, weight, smoking, blood-pressure medication and diabetes. Risk estimates use your answers, and BMI and a few other body values are calculated from them.
02
Front camera, good light
Use your phone’s front camera, with light falling evenly on your face. You also need an internet connection.
03
About 30 seconds of stillness
Frame your face and hold still for about 30 seconds. Your results appear when the analysis finishes.
04
Saved to each person’s history
Results are saved to the history of the person scanned, so you can see how they change over time. A scan counts toward your plan only when its result is saved. Your data is stored and processed outside the U.S., including in Mexico.
The results, group by group
The main results of a scan. Values marked “Calculated from your profile” come from the answers you enter.
Heart and breathing
- Heart rate (pulse)Beats per minute
- Breathing rateBreaths per minute
- Heart rate variability (HRV)How much the time between beats varies
Wellness indices
- Wellness scoreFrom 0 to 100
- Mental stress
- Sleep quality
- Vitality
- Anxiety
Body
- Facial age
- Cardiometabolic age
- Body mass index (BMI)Calculated from your profile
- Waist-to-height ratioCalculated from your profile
- Estimated waistCalculated from your profile
- Body shape indexCalculated from your profile
Risk estimates
- Cardiovascular riskA probability, not a lab value
- Overall metabolic riskA probability, not a lab value
- Other wellness risk estimatesEach one is based on the scan and your profile
Which results appear depends on each scan. All of them are wellness estimates, not a diagnosis.
Free tools, no sign-up
BMI calculator
22.4
BMI · exampleBody mass index from your height and weight, in feet, inches and pounds.
Open the calculatorWaist-to-height ratio
0.47
ratio · exampleCompare your waist with your height. The app also estimates this ratio from your profile.
Open the calculatorHeart-rate zones
5
zones · bpm rangesFive common training zones from your age and, if you know it, your resting pulse.
Open the calculator
From the guide
How to read a wellness estimate
Every results screen in the app reminds you that these are wellness estimates, not a diagnosis. Our guide explains how to read them.
Read the article
Plain truths about the scan
Worth knowing before your first scan.
It is not a diagnosis
Results are wellness estimates, and they can be wrong. For questions about your health, talk to a healthcare professional.
Visit the guideIt is not a medical device
Doc24hrs is a wellness tool. It does not diagnose, treat, cure or prevent any disease.
Terms of UseIt is not for emergencies
If you think you may have a medical emergency, call 911. In a crisis, call or text 988, in English or Spanish.
Questions, answered
Short answers about the scan. The support center has the rest.
What light works best?
Soft, even light on your face, such as a window or a lamp in front of you. Avoid a bright light or window behind you, which leaves your face in shadow. If you wear glasses, try taking them off, since lenses can catch reflections.
Do I need an internet connection?
Yes. Your results are computed by our scan technology provider, so your phone needs to be online during the scan. Your data is stored and processed outside the U.S., including in Mexico.
Is my face video uploaded?
No. The camera video is processed on your phone and is not uploaded or stored. To compute your results, signals derived from it go to our scan technology provider together with your profile answers. They are sent with a generic identifier, not your name or email.
Your data is stored and processed outside the U.S., including in Mexico. Read the Privacy Policy.
Who can be scanned?
Adults 18 and older. Teens 13 to 17 can be scanned only on a parent’s Family plan, with the parent’s or guardian’s consent. Children under 13 can be on the Family plan but cannot be scanned.
Can the app explain my results?
Naia, the app’s optional AI assistant, can. She starts only after you accept a separate permission. After a scan, she explains your results out loud, in English or Spanish, in the language you choose in the app. She is not a person or a doctor, she can make mistakes and she does not give medical advice. Meet Naia.
