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): 525 × 700 / 1153 × 1536 / 1537 × 2048 / 100 × 100 / 200 × 200 / 320 × 426 / 525 × 700 / 1201 × 1600 / 2252 × 3000 / 150 × 150 / 1921 × 2560