Wonder Core Genius are several fitness machines in one, including a smart app trainer. To meet the different demands of a comprehensive workout, it can be transformed into ten different applications without any tool in seconds, ­including a skipping rope, a hand gripper, a mode for push-ups, for squats and for full-body exercises. The individual components can be compactly stowed in the compartments of the device cassette. The app contains over 100 training ­videos for the individual muscle groups.