Hello, yes Samsung phones are SMS, therefore the messages will be green and won't show read or delivered. If you do like the look of blue bubbles and it saying read or delivered, download the app "air message". Have a good rest of your day!
Hello, i would reccommend if you don't like to have different looks on the messages, you can always change the theme by holding down on the screen on the home screen and select themes. From their you can customize your messages and the icons on your Galaxy phone. I hope this helps