You can easily restart your Kindle device if it freezes or stops responding to get it back to working.
You can reset your Kindle Paperwhite to its factory settings if your device is having serious malfunctions or you're getting rid of it.
The Kindle Paperwhite Signature Edition 12th generation is Amazon's highest-end Kindle. But with a $200 price tag, you're better off with the standard Paperwhite.