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Instead of strapping on a heart monitor, grab a wearable device that will not only keep tabs on your ticker but also incorporates an already indispensable piece of workout equipment: headphones for use with your smartphone.

21sweatshop - iriverON Bluetooth Fitness Monitor. (handout)
21sweatshop - iriverON Bluetooth Fitness Monitor. (handout)

iriverON

Track your workout and monitor your heart rate while enjoying your music using this 1.9-ounce headset. An infrared and fitness sensor in the right-side earbud analyzes blood flow and physical activity. The data measured from the built-in infrared light and accelerometer are sent to the complementary IriverON Smartphone app via Bluetooth, available for iOS and Android smartphones. The app supports many features including a GPS map to track your recorded distance and exercise route, and a voice feedback system to coach you through your workout. The monitor with three different-sized earbud caps sell for $199.99 on several sporting goods websites, including Dicksportinggoods.com, Footlocker.com, and Champssport.com, plus iriverinc.com.

21sweatshop - The skeleton of the FreeWavz smart headphones. (handout)
21sweatshop - The skeleton of the FreeWavz smart headphones. (handout)

FreeWavz

These wire-free, Bluetooth earphones have built-in heart-rate monitoring and fitness tracking. The product uses pulse oximetry, in which light is passed through tissue and captures heart rate and oxygen saturation. The results, in addition to the accelerometer data, are reported to the FreeWavz app on your iPhone or Android. The earphones, weighing under half an ounce each, were designed by ear, nose, and throat surgeon and FreeWavz founder Dr. Eric Hensen to fit the natural curvature of the ear. Listen to music while receiving customized audio fitness updates. The sweat- and water-resistant monitor was funded by Kickstarter. Pre-orders are available on Freewavz.com for $219.00.

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21sweatshop - BioSport In-Ear headphones by SMS Audio and Intel in yellow. (handout)
21sweatshop - BioSport In-Ear headphones by SMS Audio and Intel in yellow. (handout)

BioSport

The wired in-ear headphones from Intel and Curtis “50 Cent” Jackson’s SMS Audio have a built-in optical sensor to measure heart rate. The self-charging system is IPX4-rated for protection against sweat and resistance. There is not a dedicated fitness tracker app; however a free month of Boston-based Runkeeper Elite comes with the purchase of $149.95. The package also includes a tangle-free cord with a neoprene carrying case and three sizes of ear gels and hooks. The headphones, weighing a little less than an ounce, are available at Dick’s Sporting Goods and online at SMSaudio.com, Amazon.com, and Bestbuy.com.

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Alexa McMahon can be reached at alexa.mcmahon@globe.com.