Here is another core trainer that combines with your smartphone to turn your workout routine into a game. Stealth targets 29 core muscles and gives you an intense workout in a few minutes. By using the companion iOS / Android app, you will have an easier time getting through your workouts.
You may also want to see:
Stealth has an ergonomic design and keeps you comfortable. It supports full circular motion. Expected to ship in June.
**Disclaimer: Our posts may feature aff links. As an Amazon Associate, we earn from qualifying purchases. Please read our disclaimer on how we fund this site.