This new startup wants to be your AI-powered boxing coach


The connected fitness boom of pandemic-era lockdowns is long behind us (hopefully), but Growl, a new startup, is still looking to bolt a workout to the wall of your home. Think of Tonal, except instead of resistance training, it’s a boxing-inspired heavy bag session.

The wall-mounted Growl is, according to the company, powered by AI and Unreal Engine and appears to have overhead projectors, which beam the image of a life-sized coach onto the convex punching surface. 3D motion tracking technology claims to gather information about your form and technique and provide insights.

Besides the projection, the bag has an interactive coaching system to help motivate users. It also supposedly supports side-by-side training, which works great for training partners.

Growl isn’t available yet, but pre-sales are likely to open in April 2025. Pricing is projected to be between $150 and $190 a month, putting it on the steeper end of fitness devices, if it ever ships. And keep in mind you’ll need to install this thing into a wall that can withstand hours of punching.


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