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Cardiio for the iPhone uses the front-facing cam to measure your heart rate

Posted: , by Daniel P.

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Cardiio for the iPhone uses the front-facing cam to measure your heart rate
Based on MIT technology for measuring the light reflectance off your face, Cardiio for the iPhone is capable of measuring your heart rate as if with a standalone meter within +/- 3 beats per minute error.

Of course, there are a number of complex algorithms calculating on the backend, but the final result is a real approximation of your current heart rate within a very acceptable margin of error, compared to your everyday blood pressure and heart rate monitor.

Not that the EMT's iPhones will replace their medical devices, but it is certainly helpful for quick checkups. Not in the gym if your cardio machine doesn't have this function, though, since the app serves best results at rest and in a well-lit environment. 

Cardiio takes advantage of the blood vessels expanding with every heart pump, which in turn diminishes the light reflectance ratio off your face. It sports a very polished interface, and is available to try out in the App Store right now for $4.99 of your hard-earned cash.

source: Cardiio (iTunes) via RedmondPie

12 Comments
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posted on 13 Aug 2012, 05:34 7

1. SGSatlantis (Posts: 205; Member since: 20 Jul 2011)


PA can you please add "advertisment" category to your list. Also there are free apps with the same function, at least in the Play Store.

posted on 13 Aug 2012, 07:11 3

3. thebest (Posts: 226; Member since: 08 Jul 2012)


apple app store also has hundreds of free apps of this kind, but the difference is that this app is more accurate and has a clean ui.....don't bring android into every apple discussion, its all about choice.......apple app store is getting better apps because people are willing to pay for apps....the developers deserve some respect and support for making good apps, its not like, you lash out against the app because it is an iphone app, don't drag the apple vs android into every little discussion, its all about choice, you should compare different apps before judging which is better and which is not, i have the iphone 4s and the galaxy nexus, its all about choice, how can you say about the functionality of any app before purchasing and using it? i love my iphone for the apps, i also like my nexus which is updated to JB

posted on 13 Aug 2012, 08:02

5. SGSatlantis (Posts: 205; Member since: 20 Jul 2011)


Take it easy, I've had two iPhones so I'm well aware of the quality of the apps. But since I migrated to Android have no use for the App Store and have no knowledge if such apps existed for free. I meant no offense, just stated my opinion and wanted to let users know there are alternatives to a 5$ app that offers no way to get their money back in case they are not satisfied.

posted on 13 Aug 2012, 13:49 1

8. Jay_F (Posts: 236; Member since: 29 Nov 2011)


So what part of "for the iPhone" did you not understand in the headline then?

posted on 13 Aug 2012, 18:18

10. SGSatlantis (Posts: 205; Member since: 20 Jul 2011)


The article started "based on MIT technology..." so I wanted to read it. Jesus, are you all shareholders at apple that take this so personally? It's just acomment that states facts, all true and didn't said one bad thing about the app, the app store or Apple. Give me a break.

posted on 13 Aug 2012, 11:38 2

6. darkkjedii (Posts: 9316; Member since: 05 Feb 2011)


Excellent post

posted on 13 Aug 2012, 05:53 2

2. Nookie4u (Posts: 127; Member since: 13 Aug 2012)


And let the OS wars begin!!!

posted on 13 Aug 2012, 07:12

4. thebest (Posts: 226; Member since: 08 Jul 2012)


i hope it doesn't

posted on 13 Aug 2012, 11:42

7. darkkjedii (Posts: 9316; Member since: 05 Feb 2011)


As do I. This android vs iOS war sucks now. Let's get back to yankees sox, Michigan Ohio state etc.

posted on 13 Aug 2012, 14:42

9. RapidCat (Posts: 351; Member since: 12 Jun 2012)


sorry but i still don't get it, using face to measure your heart rate

in my opinion this have low accuracy

posted on 13 Aug 2012, 22:02 1

11. RomeoJDR (Posts: 237; Member since: 09 Dec 2011)


It may be pointless since there are apps that do an accurate job measuring your heart rate by holding your finger over the camera, but I have to admit it is pretty cool if it works. There are not even any healthcare insruments that take heart rates by analyzing your face.

posted on 15 Aug 2012, 13:03

12. Seannyc (Posts: 59; Member since: 21 Jul 2012)


Im a currently and andriod user with an ipod touch. When you compare the app stores, there is really not much comparison. The apple app store is easy to use and gave me the more "clean" feeling. The android app store is kinda nerdy for some reason to me. The quality of the app is play store is not up to par with the apple app store. I think it is bcuz apple regulate the apps, while andriod apps have less regulations.

If you think i hate andriod u r wrong, i manage to find a p*rn app on my andriod god bless no regulation for google play XD

Same with apple, i just like the choice of games they have, thru not a fan of paying for an app.

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