Kardia Band for Apple Watch brings medical grade heart rate monitoring

AliveCor's strap gets serious about detecting heart issues
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The Kardia Band, a medical grade heart monitoring Apple Watch strap is now available to pre-order and is priced at .

US-based company AliveCor is responsible for bringing the smart strap to life and is headed up by ex-Google SVP of engineering Vic Gundotra.

While most Apple Watch owners will realise that the smartwatch already has the tech onboard to keep an eye on your ticker, question marks still remain over its ability to accurately detect heart rate activity.

Apple has even admitted that having a tattoo can interfere with the readings and that getting the precise right fit is vital for reliable bpm (beats per minute) readings from your Watch.

Essential reading: Best heart rate monitors and HRM watches

The Kardia Band is not a replacement fitness tracker however, but a medical grade heart rate monitor that has the potential to detect heart related issues like palpitations, shortness of breath and irregular heart rate which could increase the risk of a stroke.

How it all works

It all comes down to the type of technology AliveCor uses in its band. The current Apple Watch heart rate setup relies on something called photoplethysmography. This is essentially an optical heart rate sensor based technology that you similarly find on fitness wearables like the Fitbit Blaze or the Garmin Vivosmart HR+. It produces a reading by flashing lights against the skin to detect blood flow.

The Kardia Band uses electrocardiogram (EKG) technology, which detects the electrical activity produced by a heartbeat. It's still considered the most accurate way to record heart rate activity and is used by the medical industry and found inside heart rate monitor chest straps. So it's a big deal that AliveCor is able to bring the tech to the wrist.

All of the data is sent to the AliveCor companion app, which can be synced with Apple Health and should make it easier to share the information with your doctor to make use of the information.

You can pre-order the Kardia Apple Watch band, which will be available in 38mm and 42mm options from the AliveCor website now. It's expected to ship in early November.

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Michael Sawh

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Michael Sawh has been covering the wearable tech industry since the very first Fitbit landed back in 2011. Previously the resident wearable tech expert at Trusted Reviews, he also marshaled the features section of T3.com.

He also regularly contributed to T3 magazine when they needed someone to talk about fitness trackers, running watches, headphones, tablets, and phones.

Michael writes for GQ, Wired, Coach Mag, Metro, MSN, BBC Focus, Stuff, TechRadar and has made several appearances on the BBC Travel Show to talk all things tech. 

Michael is a lover of all things sports and fitness-tech related, clocking up over 15 marathons and has put in serious hours in the pool all in the name of testing every fitness wearable going. Expect to see him with a minimum of two wearables at any given time.


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