4iiii | Viiiiva

Reach your goals faster with accurate information about your training.  With the 4iiii Viiiiva, you finally have the heart rate monitor you've been searching for all along.

• Built-in Liiiink technology turns your Smartphone into a running/cycling computer, sending all of your ANT+ date in real time to a plethora of fitness apps.
• Pair with the Sportiiii training display for extreme training program customization and control.
• Works with ANT+ devices such as Garmin, Timex, and adidas.
• Includes a free iPhone app for ANT+ sensor management.
• Gets over a year of battery life from one coin cell battery.

Tax is only charged if shipping to California. Visit our Shipping Info page for additional information.

We honor returns within 30 days from the original delivery date and offer free exchange shipping. Some restrictions do apply for built-to-order items, or very large items like furniture. 

For additional details, or to initiate a return, please visit our Returns Page.

*Please note that while we do our best to have the most up to date product imagery, in-line changes will happen with brands and the actual product shipped may differ slightly.