There is no right or wrong answer. Here are some things to consider when making your decision.
A manual toothbrush is portable and ready to use every time you need it. It makes no noise, and you will have complete control over the pressure it puts on your teeth and gums. Manual toothbrushes are a more affordable option.
However, the rotating movement of the bristles on an electric toothbrush makes it easier to clean between teeth and at the gum line. Many electric toothbrushes have built-in sensors to make sure you brush long enough and most importantly, don’t press too hard. Electric toothbrushes have a smaller brush head to access right at the back, although they can be a more expensive option.
Ideally whichever one you choose it still comes down to how well you use it and if you are using it properly. The right technique, small round circles on teeth and gums, is the key and making sure you brush for 2 minutes at least.
It’s most important to choose what feels comfortable and makes you want to brush your teeth regularly!