Shapeheart: Heart Rate Monitoring Armband0
What’s better than a regular workout armband for your smartphone? Maybe one that can also measure your heart rate. Shapeheart is a magnetic smartphone case that lets you access your apps and monitor your performance as you push your body.
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Shapeheart should work with most smartphones and top running apps such as Strava and Endomondo. Its optical sensor has a battery that lasts up to 25 hours. The armband is adjustable and accommodates phones from 4″ to 6.2″.[where to get it]
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