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): 118 × 96 / 400 × 325 / 700 × 569 / 1536 × 1249 / 100 × 100 / 200 × 200 / 320 × 260 / 700 × 569 / 150 × 150 / 1774 × 1442