For front-delt growth
For front-delt growth, machine shoulder press rates well ahead on our research criteria: easier to progress, easier on the joints.
Both are good choices that train the front delts 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
Machine Shoulder Press. A stable overhead press: easy to load and push hard, with the front delts doing most of the work.
For front-delt growth, machine shoulder press rates well ahead on our research criteria: easier to progress, easier on the joints. Both are good choices that train the front delts 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.
Arnold press needs dumbbells and a bench, so a home gym covers it. Machine shoulder press needs a machine, so for most people it’s a gym exercise.
Machine shoulder press: it rates Excellent for joint and recovery cost in our research rubric, against Strong for Arnold press.