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4iiii Viiiiva Heart Rate Monitor
June 24, 2025$39.99
The 4iiii Viiiiva Heart Rate Monitor combines best in class accuracy with ANT+ and Bluetooth SMARTÂ technology
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4iiii Viiiiva Heart Rate Monitor
The 4iiii Viiiiva Heart Rate Monitor isn’t just another heart rate monitor! It uses advanced beat-to-beat measurement, is 10x more sensitive than other heart rate monitors and 5x more responsive. In addition, it’s both ANT+ as well as Bluetooth SMART compatible, so it can connect to any ANT+ bicycle computer or a smart phone or tablet using Bluetooth.
Additional Features
Activity Logging
This means that in addition to viewing your data in real time, you can also save up to 65 hours of data on your Viiiiva and transfer it to another device or application.
ANT+ Sensor Bridge
You can collect data on your heart rate monitor from other ANT+ sensors and transfer it via Bluetooth to your iOS or Android smartphone.
Specs
- Communications Protocols: ANT+, Bluetooth SMART
- Weight: 47 grams
- Dimensions: 2.6 in. x 1.8 in.
- Strap length: 23-52 in.
- Battery type: CR 2032
- Battery life: up to 200 hours
- Waterproof rating: IP 67
Q&A
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