Designed to make boxing more exciting and accessible, Growl projects a virtual boxing coach into people’s living rooms
Connected boxing startup Growl has begun taking pre-orders on its flagship product: an AI-powered punching bag that projects a life-sized virtual boxing coach into people’s living rooms.
Pre-orders are available as part of a Kickstarter campaign that launched this week; Growl already had 58 backers and over $144,000 pledged as of late Tuesday morning, far exceeding the campaign’s $20,000 goal. The company also received close to 1,000 VIP pre-reservations before launching its campaign.
Growl’s Kickstarter campaign runs until June 14.
Founded by Léo Desrumaux and Nicolas de Maubeuge as a way to make boxing more exciting and accessible to newcomers, Growl raised $4.75 million in seed funding in December as it looks to become the next big product in connected fitness.
“Our belief is that boxing has this uncanny, universal touch and potential,” Desrumaux told Athletech News in December. “You can realize that universal touch if you make it fun and accessible.”
Growl uses 3D motion tracking to capture punches and AI computing to project virtual coaches directly onto the bag’s surface, allowing users to box with virtual coaches and play interactive boxing games. Growl also coaches users on traditional fitness movements like bodyweight squats, push-ups and dumbbell exercises.

The Austin, Texas, and Paris, France-based company has been backed by UFC heavyweight fighter Ciryl Gane, who was part of December’s funding round, and its executive team includes former talent from Peloton, Tonal and Aescape.
On Kickstarter, boxing and fitness enthusiasts can pre-order Growl for plans starting at $2,449, around 50% off the bag’s planned $4,949 MSRP. Those who place a Kickstarter order can also receive perks like a free 12-month subscription for premium content and a 30-day risk-free trial.
Growl aims to begin shipping its product in February 2026.