Which is correct, I'm charging my I phone now or my iPhone is charging?

Hi, Native speakers of English. I would like to know which of the following is grammatically correct or is the way you usually say.

My iPhone is charging now.

or

I'm charging my iPhone now.

Both are correct… I, personally, would say… I'm charging my iPhone now… Mo Eng tutor

It's the English language. Most native speakers don't even use proper grammar.
As to the specific question both are correct but the second is smoother and easier to say in most situations.

Check your grammar…
my i phone was charging now.
i charge my i phone now.

Both are correct. But if you say I'm charging my iPhone and don't mention the now it's better. Because the sentence your saying is about the present time so it's no need to say now.
or you can say my iPhone is on charge right now. Or my iPhone is getting charged right now.
and if you want to say the second one it's better to say I'm instead of I'm but for writing it's no difference.

They're both perfectly correct. But as what you've actually done is plug the phone in and go away, it's a little more logical to say 'My phone's charging', as your part in the action is over.

Both.

My phone is charging

The Iphone is charging itself… You are not giving charge to the Iphone but the charger does.
so I'd go with…
My Iphone is charging