4iiii Innovations is a Canadian company that develops and manufactures products meant to enhance performance via wearable technologies. For example, the company's Viiiiva heart rate monitor is the first of its kind to enable ANT+ devices to communicate with an iPhone (News - Alert) or iPod Touch in real-time without the need for adapters, which can often interfere with athletic performance.

As such, the Viiiiva comes in the form of a lightweight, comfortable chest strap and integrates Liiiink technology, which bridges ANT+ with Bluetooth Smart, enabling heart rate tracking on both an iOS device and a sport watch. Users can also adjust settings, review activity summaries and receive performance feedback via their iPhone or iPod at any time.

Another offering from 4iiii is the Sportiiiis, which the company says is the perfect companion to the Viiiiva, which is a heads up display (HUD) that attaches to glasses, whether regular or sunglasses, and delivers up to the moment feedback of workout and racing data — such as heart rate, cadence, power, speed and pace — right to the wearer's eyes.

“The Liiiink technology inside Viiiiva turns the iPhone/iPod touch into a cycling computer or running monitor, making performance monitoring smarter, faster and safer,” said Alana Baxter, product manager at 4iiii Innovations, in a statement. “As a group of triathletes we need a system that connects all our devices to our iPhone/iPod providing us with on-the-go monitoring, file saving, and performance review. It was through recognizing this need that we came up with the idea of Viiiiva and created our unique Liiiink technology.”

The Viiiiva doesn't just display heart rate information on ANT+ and Bluetooth Smart displays; it is also capable of channeling output from ANT+ sensors — such as foot pods, bike speed/cadence sensors and power meters — to Bluetooth Smart format via Liiiink, making a wider selection of information accessible via iPhone. The device also saves workout data in .FIT files and is capable of running on a single coin-cell batter for over a year at a time.