Compare wand heads and handles
Use the same measurements when comparing a compact and a full-size design.
Compare head width across the contact surface
A broad, flat head covers a different area from a small rounded head. Look for the diameter and profile rather than relying on the overall device length. If the listing gives just one width, ask where it was measured.
Look at the grip and button position together
A long handle can extend reach. A shorter handle may fit more easily in your palm. Check whether your thumb would naturally reach the power control without stretching or rotating the device.
Distinguish neck flex from a bendable body
A flexible joint near the head and a body that the maker describes as bendable are different constructions. Check the instructions for the exact product before bending it.