An arm bracelet sits on the upper arm rather than the wrist, so the piece has to grip without pinching, and that comes down to the opening style.
- Open-cuff designs bend slightly to your arm, while coil and spiral styles adjust over a wider range.
- Measure your bicep with a soft tape and compare it to the internal circumference given in the listing.
- Check the plating and base metal if you have sensitive skin or plan to wear it in summer heat.
Wide cuffs make a bolder statement but slide more on a slim arm, so a textured or slightly squeezed inner edge helps it stay in place.