This jacket has a convenient pocket for my phone.

Relating to or suitable for carrying small items or belongings.
This is a pocket-sized notebook.
She bought a pocket mirror.
He uses a pocket knife daily.
pocket calculator
pocket money
pocket edition
compact
miniature
small
I put my keys in my pocket.

A small bag or pouch used for carrying items.
My phone fits in this pocket.
He found money in his pocket.
The shirt has a large pocket.
deep pocket
empty pocket
back pocket
pouch
bag
compartment