Been shaving my head for so long now i lost count. Sometimes your in a rush and its kind of a pain in the ass because you just dont have the time. I got to recommend something though. There has never been an electric razor that got close enough.....
I found this about a month ago
https://www.skullshaver.com/electric-shavers-men
This thing is awesome. This gets real close...closer than anything Ive ever seen beside a razor. The best thing about it is you dont have to sit in the mirror or shower and shave your head if your in a rush...you can watch tv, look at the computer, sit on the toilet, hell whatever and shave your head...which if your in a rush is a tremendous benefit....because you can do two things at once...
Just thought i would throw that at you guys because it takes about 90 seconds and gets the job done when your in a rush.
Hell i just read this board while i was shaving my head LOL