Rechargeable vibrators and sex toys are the upgrade to battery operated vibrators. They no longer need batteries, and instead charge, just like your phone! As a result, they are usually more powerful than battery operated toys, quieter, and can be waterproof and submersible. They also are often made out of more body-safe materials like silicone, whereas battery operated toys can come in materials like jelly or plastics which may contain phthalates.