Thompson Fatbells

The Rogue Thompson Fatbells, co-developed with powerlifting legend Donnie Thompson, rethink the kettlebell by moving the handle dead center inside a solid cast-iron sphere instead of offsetting it above the bell. That center-mass design keeps the load equidistant from the hand through the whole movement, which reviewers consistently credit with reducing the wrist and elbow shearing common to standard dumbbells and kettlebells while allowing a bit more range of motion on presses.

In practice, most reviewers treat Fatbells less as a kettlebell replacement and more as a joint-friendlier dumbbell alternative — strong for presses, rows, and especially shoulder isolation work like lateral raises, with a flat machined base (on 26lb+ models) that keeps them from rolling on floor work. Build quality is standard Rogue cast iron and powder coat, though more than one reviewer flags sloppy application of the color-coded weight stripe. Sorinex’s Center Mass Bell is the closest direct competitor, using ductile iron and finer 5lb jumps versus the Fatbell’s kettlebell-style 8-9lb increments.

The real limiting factor is value: at roughly $2-3 per pound, a full 9-97lb set runs close to $950, and the coarse weight jumps leave awkward gaps between sizes. One YouTube reviewer who owns a full set put it bluntly — despite liking the feel, he couldn’t recommend them to most home-gym buyers over a cheaper fixed dumbbell set at the same price point. They’re a genuinely well-made, joint-friendly piece of equipment, but one best suited to lifters buying a pair or two to fill a specific gap rather than building out a full rack.