Draw a tall rounded rectangle
Add a smaller rounded rectangle inside for the screen
Draw a thin border around the screen
Add a small circle at the top for the front camera
Add a small speaker slit near the top edge
Draw a side button on one edge
Add volume buttons on the opposite edge
Draw a mute switch above the volume buttons if desired
Add a charging port at the bottom center
Add speaker holes on both sides of the charging port
Round the corners smoothly
Darken the outline
Erase extra guide lines
Color the body in your chosen iPhone color
Fill the screen with a dark or bright display color