4iiii - Viiiiva Heart Rate Strap

  • $9.90
Tax included. Shipping calculated at checkout.



The heart rate monitor of choice for top cycling teams like Israel Start-Up Nation, Viiiiva is so much more than your standard Heart Rate Monitor. It stores up to 65 hours of workout data so you can be sure that your valuable data is never lost during a key training session.

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. Viiiiva lets you connect your ANT+ device with your favourite training software such as ZwiftTrainerRoadWahoo SYSTMRouvy, and more.


Tap-to-pair connection lets you simply tap your iOS or Android smartphone to your Viiiiva pod to immediately connect the devices.

Display compatibility gives you the freedom to use your choice of ANT+ and Bluetooth compatible displays with Viiiiva.

The 4iiii app enables you to see your activity in real time, access upgrades through our web store, and transmit your activity data to other training apps or websites.

Activity logging means you can not only view your data in real time, but you can also save up to 65 hours of data on Viiiiva and transfer it to another device or application.

ANT+ sensor bridge lets Viiiiva collect data from other ANT+ sensors, then transfer it via Bluetooth to your iOS or Android smartphone.

Fitness equipment pairing enables you to pair Viiiiva with cardio equipment in the gym for real-time and logged data.



  • Measurement Type: ECG-Electrocardiogram
  • Operating Temperature: 0 to 50°C (32-122°F)
  • Storage Temperature: -20 to 60°C (4-140°F)
  • Battery Type: CR2032 lithium ion coin cell
  • Battery Life: 160hr
  • Waterproof Rating: IPX7
  • Radio Frequency: 2.4ghz
  • Strap: 57 to 132cm (23-52in)
  • Communication Protocols: ANT+, Bluetooth®
  • Activity save duration: Up to 60hr

*Please note that our specifications may be impacted by running substitution changes, we highly recommend confirming the specifications of our products at the time of sale. *Recommended Retail Prices are subject to change without notice and may vary from store to store depending on freighting and assembly costs. Please read our Terms & Conditions

*Giant & Liv Bicycles are available for purchase online, but due to warranty regulations, must be shipped to qualified Giant dealers, as bicycles must be assembled by a qualified bike mechanic in an approved store - This is an international policy and usually will require an additional fee to build the bike. This will be confirmed by one of our online staff after purchase of the bike.

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