I recommend the Philips fully automatic toothbrush.

I am currently using a Philips fully automatic toothbrush. I am satisfied because I don't have to strain my wrist while brushing. My wrists are on the weaker side, so I try to avoid using it as much as possible. This fully automatic toothbrush is convenient because all you have to do is turn it on and change the direction. It feels like it removes plaque and food debris more effectively by vibrating. Maintenance isn't difficult either, as you just need to rinse it with water. It is convenient because you only need to buy and replace refills periodically. I recommend it.