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): 567 × 700 / 1245 × 1536 / 1660 × 2048 / 100 × 100 / 200 × 200 / 320 × 395 / 567 × 700 / 1297 × 1600 / 150 × 150 / 2075 × 2560