Choose from many photo sizes, iPhone resolution to wide and HD, including full size image. See it larger for more details:
Different image sizes (resolution): 65 × 96 / 272 × 400 / 476 × 700 / 1045 × 1536 / 1393 × 2048 / 100 × 100 / 200 × 200 / 320 × 470 / 476 × 700 / 150 × 150 / 1667 × 2450