TETSUBand Reverse Fly vs Weighted Round Arm
The Band Reverse Fly and the Weighted Round Arm both train the delts as their primary muscle. The Band Reverse Fly uses a band while the Weighted Round Arm adds external weight to a bodyweight pattern. Here is how they compare and when to pick each.
Side-by-side comparison
| Band Reverse Fly | Weighted Round Arm | |
|---|---|---|
| Primary muscle | delts | delts |
| Body part | shoulders | shoulders |
| Supporting muscles | upper back and trapezius | triceps and upper back |
| Equipment | band | added weight |
| Steps in our guide | 6 | 6 |
How each one starts
Band Reverse Fly — first steps
- Attach the band to a stationary object at chest height.
- Stand with your feet shoulder-width apart and hold the band with both hands in front of you.
Weighted Round Arm — first steps
- Stand with your feet shoulder-width apart and hold a dumbbell in each hand.
- Bend your knees slightly and hinge forward at the hips, keeping your back straight.
Full step-by-step guides are linked below.
Which should you choose?
The Band Reverse Fly gives accommodating resistance that peaks at the top of the range. The Weighted Round Arm adds external load to a bodyweight pattern for direct overload. If your gym has both options, neither is a wrong choice: pick the one that feels strongest through a full range, and swap after 6 to 8 weeks to keep the delts adapting.
Full form guides
Common questions
Is the Band Reverse Fly better than the Weighted Round Arm?
Neither is universally better — both train the delts as the primary mover. The Band Reverse Fly gives accommodating resistance that peaks at the top of the range, while the Weighted Round Arm adds external load to a bodyweight pattern for direct overload. Choose based on your equipment and which movement you can progress consistently.
Can I do both the Band Reverse Fly and the Weighted Round Arm in the same program?
Yes, but usually not in the same session — they overlap heavily on the delts. A common setup is one as your main movement and the other on a second training day, or alternating them block by block.
Do the Band Reverse Fly and the Weighted Round Arm work the same muscles?
The primary muscle is the same: the delts. Supporting muscles differ slightly — upper back and trapezius for the Band Reverse Fly versus triceps and upper back for the Weighted Round Arm.
Track it in Tetsu
Tetsu tracks both movements separately, keeps your PRs per exercise, and tells you which one is actually progressing. Free to start.