CAP Barbell Adjustabell Dumbbell Set vs FitRx SmartBell Adjustable Dumbbell 2-Pack

Both are small quick-select dumbbell pairs that top out at 12.5 lb per hand, so the choice comes down to handle feel and adjuster design rather than range. The CAP Adjustabell uses a chrome, full-rotation handle with a twist selector and a tray, which most owners find smoother and easier on the hands. The FitRx SmartBell is plastic-bodied with a spin-lock collar and a storage rack, and its 5-out-of-5 rating from 35 buyers is encouraging but a small sample. Buy the CAP for a nicer grip and quieter changes; buy the FitRx if you want the rack and a lock collar you can see working.

• Choose the CAP Adjustabell if you want a chrome rotating handle, a tray, and twist changes in 2.5-lb steps.
• Choose the FitRx SmartBell if you prefer a visible spin-lock collar, a storage rack, and an anti-slip plastic handle.