Read controls before comparing mode counts
Separate air settings, vibration settings and stop actions.
Match each button to a function
A dual-ended design may have separate controls. Read the exact manual and test the stop action away from the body before using it.
Check the lowest setting
Mode counts describe choices, not how strong a device is. Ask whether the maker provides distinct intensity and pattern controls.
Check the device and remote separately
An app or remote may change settings that are not available on the device. Confirm which controls remain available if the connection drops.