Cost: ~$100

Many companies have tried to create tech-savvy heart monitoring devices, but none have managed quite so well as Singapore-based company Zensorium. Tinké, a small, colorful device that plugs directly into your iPhone measures heart rate, oxygen levels, and blood pressure via your finger. The device stores the information in its social network to track your progress. The company says it will be adding more features to the device before it becomes available in the next six months--including a stress level monitor.

By Sierra Jiminez, Reporter @CNNMoney - Last updated January 24 2012: 1:59 PM ET
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