AI Personal Trainer

5-7 business days
90 DAY
  • Cloud-based AI coaching engine
  • Aerospace-grade biosensors such as heart rate, motion, elevation, proximity and touch
  • Beautiful sound by Harmon Kardon
  • Sweat and water resistant
  • Wireless connectivity
  • 4-6 hours of active use
  • iOS and Android compatibility

What's in the Box

VI AI Personal Trainer Earphones

Carrying Case

Sizing Fit Kit

USB charging cable

Quick Start Guide

Tech Specs

Connections: Bluethooth, Wireless

Batteries: 1 Lithium ion batteries required. (included)

Average Battery Life: 8 hours

Dimensions: 7.5 x 6.5 x 3.2 inches

Weight: 1.3 oz

Beautiful Sound by Harman/Kardon

Compatibility: iOS & Android

Health Kit and Google Fit Compatibility

Voice Control

Phone Calls


What activities does Vi work for?
Currently Vi coaches users during their outdoor runs, and also has walking and cycling options available in beta.

What new features are planned?
We’re already working on a ton of new features for Vi; we plan to have more music features and social sharing released soon. We are also working on indoor running and AI Training Challenges to be released towards the end of Summer 2017. Finally, we’re exploring ways to take Vi out of fitness activities and into additional features to support mindfulness and overall health. Stay tuned for more on this really exciting area.

Do you need a phone to use Vi? If so, what do you support?
Yes, a phone with GPS capabilities is needed so that the Vi Fitness app can start and stop workouts, track biometrics, measure and store data, track features like elevation and location, and play music during training.

We support iOS (9+) and Android OS (Lollipop +) devices however we recommend having the latest OS on any device for the best Vi experience.

Are app and device updates free? What do they include?
Yes. App updates are pushed to your app via the Google Play Store or Apple App Store. App updates can include various feature improvements (stats, distance, music), appearance, new features, bug fixes and more. Device updates are done over-the-air via BLE to your phone and then device. These updates can include improvements to Bluetooth, sound, Vi’s internal sensors for voice recognition and physiological stats, and more.

What apps does Vi integrate with?
Vi integrates with Google Fit, Apple HealthKit, Spotify Premium, and the local music on your phone. We are currently working on integrations for Strava, Apple Music, and Google Play Music.

Users can also export their Vi workout data via a .tcx file to other apps or share their heart rate reading to other apps/devices.

Ratings & Reviews


Warranty Information
If your Vi biosensing earphones are defective when you receive them, we’ll make it right immediately. For US customers, if​ ​you ​develop a problem later that’s our fault, we’ll either (at our option) ship you the parts that need to be replaced along with detailed instructions, or ship it back to us for repair or replacement – in either case, for free, including shipping.

For international customers, parts and repairs are free, but shipping is not included.

The Vi team warrants that during the warranty period, we will, at its sole discretion, remedy defects in (materials or workmanship free of charge either by a) repairing, or b) replacing, or c) refunding, subject to the terms and conditions of this Limited Warranty. This Limited Warranty is only valid and enforceable in the country of purchase, unless local law stipulate otherwise. Processing of all warranty claims will be handled by the the place of purchase of Vi product, and according to the geographic area where the purchase was made.

Warranty Period
The Limited Warranty Period starts when the product ships. The Warranty Period is one (1) year in North America. International warranty periods vary subject to local laws and the policies of the authorized importer or the local distributor for the geographic area where the purchase was made. International warranties are at a minimum one (1) year.