When you type a text on iPhone, you can count text characters on your screen by using one of phone settings. When you turn on the option, it will display character numbers at your screen. It will give you idea that how many characters you have typed so far. The character count will show up on iPhone screen when enable the option. Here are some of those directions which will guide you to turn on the option for SMS characters count on iPhone.
First thing to do is, go to settings and tap on it to open.
You will see few options there, go to messages and tap on it to continue the process.
Here you will find message settings, which includes list of options. You will look for character count option. Go to it and it will be showing you off status. You will tap on slide next to this option, when you tap it, it will show you ON option. Keep this option turn on and close it.
Now you will character count on in text message body, and showing you how many characters you have typed.