What are the main safety features of walk-in bathtubs for elderly?

Common walk-in bathtub safety features include a low entry, built-in seat, slip-resistant surfaces, grab bars and accessible controls. Some models include anti-scald protection or faster draining. Confirm what the particular tub includes and whether the layout suits the user. Proper installation and maintenance matter, and assistance may still be needed. These features support safer access but do not make a walk-in tub fall-proof or universally suitable.