To change Gmail Profile picture on iPhone, you are supposed to follow and apply few important instructions. Now, to do it, you must open your iOS phone or tablet, and then you should open the Gmail app. Now, you move to the top right, and then tap on your profile picture. Now, you should open your profile picture, and then tap on camera and then you should change or add profile picture. Now, you must take ot choose a new profile picture and then you must drag your profile picture to the center of the square and then tap on save as profile picture.