A cordless electric kettle is more convenient because you can take it with you around the house as you do your tasks. A corded electric kettle will have a more accurate temperature setting because it is always plugged in, so you won't have to worry about charging it regularly. And finally, a cordless electric kettle can be dangerous if dropped and broken during use because they're not plugged into the socket. On the other hand, a corded electric kettle will cause no damage if dropped or broken.