For forearm growth
For forearm growth, wrist curl rates well ahead on our research criteria: more of the work on the forearms, more stretch.
Both are good choices that train the forearms the same way, so they swap freely. Rotating between them every few weeks is an easy way to vary your training.
The research score comes from these, scored by hand from the studies. Lifter scores appear once an exercise has 10 ratings. How scores work
Wrist Curl. Isolates the wrist flexors through their full range, and it’s easy to add weight in small steps.
For forearm growth, wrist curl rates well ahead on our research criteria: more of the work on the forearms, more stretch. Both are good choices that train the forearms the same way, so they swap freely. Rotating between them every few weeks is an easy way to vary your training.
About the same: both are easy to learn.
Wrist curl needs dumbbells and a bench, so a home gym covers it. Wrist roller needs a weight plate, so a home gym covers it.
Wrist curl: it rates Excellent for joint and recovery cost in our research rubric, against Strong for wrist roller.