Vi alternatives

Vinci is the world’s first standalone smart fitness headphones. Run without phones. Music, calls, and fitness trackers all-in-one. Voice-controlled AI. 15,000 skills with Alexa. Noise cancellation.

Racefox uses a chest sensor to see how your body moves, providing in-the-moment feedback for improved performance and reduced injury. All you need is your phone, headphones and a Polar H10 or Racefox Smartbelt to get started. https://www.racefox.com/