The best passcode for a lazy person is a 5-digit passcode.

If you use the standard 4-digit or 6-digit passcode formats on the iPhone, you get the equivalent amount of bubbles on your lock screen, showing anyone who even glances at your phone how long your passcode is before you even start pressing buttons.

If you select a “Custom Numeric Code” when adding or changing your passcode, you can just type a 5-digit code and your lock screen will now show an empty box that doesn’t give away the length of your passcode. Sure you would have to hit the “OK” button afterwards, but it’s still the safer option.

You can’t go less than 4 digits. I tried.

4 and 6-digit passcodes make it easier for snoopers to figure out your passcode, but having a 5-digit passcode makes it harder to determine because no one would know it’s only 5 digits.