Bowflex’s SelectTech dumbbell is a selectorised dumbbell, which means its weight can be adjusted simply by turning a dial when the dumbbell is resting in its base. It combines 15 weights ranging from 2kg to 24kg, so you can easily achieve a varied workout.

The 552 isn’t the only adjustable weight from Bowflex. The 1090i adjustable dumbbell, for instance, ranges between 4kg and 41kg, while the brand’s adjustable kettlebell ranges between 3.5kg and 18kg. Top-scoring models provided the natural, sturdy feel of a fixed dumbbell, with minimal rattling or shaking, and had a practical shape that was easy to wield. The adjustable dumbbells that passed our rigorous testing are stamped with our MH Lab Approved badge. The other entries have been carefully chosen by our editors after impressing them during home gym pump sessions. Key features – Main material: Latex-free plastic; Weight range: 3.6-22.7kg; Number of weight options: 8They then set about putting them to the test, working through a session of bodybuilding staples including lateral raises, lunges, bench press and (of course) the humble dumbbell curl. Key features – Main material: Chrome and plastic; Weight range: 2.3-22.7kg; Number of weight options: 16

Above all else, the weight spread is impressive, and should prove more than enough for even advanced lifters to perform a variety of exercises at home.

SAUNA SUITS

Although water-filled dumbbells also technically fall into the adjustable dumbbell category, it is primarily these two types outlined above that we’ll be covering in this roundup. The latest evolution of the humble dumbbell, these innovative bits of kit allow you to change the resistance of your weights with minimal effort (just what you want between energy-sapping sets). Never ones to shirk a workout, we sent our MH Lab team on a mission to find the finest adjustable dumbbells on the market.