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Viiiiva Heart Rate Monitor

Viiiiva

$49.99 USD

The Viiiiva is so much more than a heart rate monitor. The Viiiiva can act as an ANT+ to Bluetooth bridge so you can broadcast your ANT+ devices to your bluetooth devices all through your Viiiiva heart rate monitor. The Viiiiva also records every second of your workout, including data from paired ANT+ devices. If something happens to your head unit or watch the Viiiiva will keep your data safe, up to 65 hours of it.

Details

It’s Easy

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.

It’s Advanced

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.

Learn more about ANT+ & Bluetooth Smart.

Features

  • ANT+ Sensor Bridge

    Viiiiva collects data from other ANT+ sensors, then transfers it via Bluetooth to your iOS or Android smartphone.

  • Activity Logging

    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.

  • Water Resistant IPX7

    Viiiiva collects data from other ANT+ sensors, then transfers it via Bluetooth to your iOS or Android smartphone.

  • 3 Year Warranty

    A lot can happen in 3 years. You probably won’t need to use it, but it’s reassuring to know that all 4iiii power meters are backed by an industry leading 3-year warranty.

Specifications

Specification Value
Measurement Type ECG-Electrocardiogram
Operating Temperature 0 - 50°C (32 - 122°F)
Storage Temperature -20 - 60°C (4 - 140°F)
Battery Type CR2032 lithium ion coin cell
Battery Life 160 hrs
Waterproof Rating IPx7
Radio Frequency 2.4ghz
Strap 57 - 132cm (23 - 52in)
Length 65mm (2.6in)
Width 37.4mm (1.5in)
Depth 11.2mm (0.4in)
Weight Pod: 14g (0.5oz)
Strap: 33g (1.2oz)
Total: 47g (1.7oz)
Communication Protocols ANT+, Bluetooth®
Activity Save Duration Up to 60hr
R-R Interval Unit 1/1024s

Compatibility

Communication Compatibility

4iiii Viiiiva heart rate monitors use both the ANT+ PWR and Bluetooth Smart Cycling Power Service standards, which makes them compatible with nearly every headunit, smartphone, or computer you wish to connect to. Check your recording device documentation for ANT+ PWR or Bluetooth Smart (also called BLE, BTLE, or BT4.0) Cycling Power Service capability.

Tip: A 4iiii Viiiiva can be used to record your workouts along with your heart rate.

Learn more:

  1. ANT+ and Bluetooth Smart
  2. Indoor Training

Resources

  1. Quick Start (English)
  2. Quick Start (Français)
  3. User Manual
  4. iOS App
  5. Android App

Customer Reviews

Based on 4 reviews
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M
M.M.
Excellent ANT+ to Bluetooth Bridge

I use this with my Specialized Kenevo SL which has a HR display on the TCU (very useful). The bridge transfers the bike's cadence, power and pace/distance metrics from ANT+ via Bluetooth to the WorkOutDoors iOS app that I use (actually, it connects directly to the WorkOutDoors WatchOS app to record the ride). This is app also has a map and I've used it to navigate (from my watch) on MTB rides. This wouldn't be possible without this Viiiiva. I've noticed that using the Apple Watch GPS for distance metrics on MTB rides is not as accurate as actually using the data from the bike (rotations of wheel X wheel diameter which the app understands).

If you have ANT+ sensors and want to get that data via Bluetooth, get this!

(note: Viiiiva will only connect to one BT device at a time, so you may need to turn off BT on your phone after setting it up with the Viiiiva App to get it to connect to your watch. Then you can turn BT on your phone back on. Next time it will reconnect to the watch)

B
Bryan Reynolds

I haven’t received it yet. Ordered with a power meter install 12/10. Still waiting

R
Ronald Szeto
Heart Rate Monitor+

Heart rate sensor picked up quickly, and was very accurate. Its bridging capabilities were very useful for my third party apps. I was able to use Viiiiva to pick up my Ant+ device and transmit it to Rouvy on my iPhone. Unfortunately, I was un able to use Viiiiva with the same Ant+ device for my AppleTV Rouvy app. I guess my iPhone Bluetooth works better than my AppleTV Bluetooth.

C
Chuck T
Top notch product backed by great support

I love the Viiiiva as an HRM and for its Bluetooth relaying of older ANT sensors.
The fit file memory has come in handy a few times to recover ride data otherwise lost by a dead head unit.
AND the support is great. I started having some problems with my 3 year old Viiiiva and the support person quickly had my issue resolved.