4iiii Viiiiva Heart Rate Monitor

The 4iiii Viiiiva is the hear rate monitor of choice for top cycling teams like Jumbo Visma, the Viiiiva is so much more than your standard Heart Rate Monitor. Storing up to 65 hours of workout data you can be sure that your valuable data is never lost during a key training session. It's not just a heart rate monitor: The Viiiiva can act as a ANT+-to-Bluetooth bridge to connect your ANT+ devices to a Bluetooth-only receiver such as a smartphone, tablet, or laptop. The lets you connect your ANT+ device with your favourite training software such as Zwift, TrainerRoad, TheSufferFest, Rouvy, and more.

Features

MORE THAN JUST A HEART RATE MONITOR
Viiiiva is not just one of the world's best heart rate monitors. It also acts as an ANT+ bridge and data recorder, allowing you to record from ANT+-only fitness devices, pass their data through to a Bluetooth-only device, or even leave your phone, watch or headunit at home.

ANT+ BRIDGING WITH YOUR VIIIIVA
If you have fitness devices that only supports ANT+, you can set your Viiiiva up to talk with and record from them and retransmit their data over bluetooth to your phone, computer, or other bluetooth-only device. Using the 4iiii App, you can connect to and bridge from powermeters, gym equipment, footpods, and more.

DATA RECORDING WITH YOUR VIIIIVA
Your Viiiiva records every second of your workout, including data from paired ANT+ devices. This lets you just get your workout in without worrying about carrying your headunit or phone, because your Viiiiva keeps your data safe, up to 65 hours of it. Set up this functionality with the 4iiii App.

Specifications

Data Recording: Up to 65 Hours from Viiiiva and connected devices
Weight: 5 g (1.76 oz)
Dimensions: 6.5 cm x 4.5 cm (2.55 in. x 1.77 in.)
Strap length: 57–132 cm (23–52 in.)
Battery type: CR 2032
Battery life: up to 200 hours
Operating temperature: 0–50 C (32–122 F)
Waterproof rating: IP 67 (protected from dust and 1-meter water immersion)
Radio Protocol: ANT+ HR and Bluetooth Smart Heart Rate