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): 598 × 700 / 1312 × 1536 / 100 × 100 / 200 × 200 / 320 × 375 / 598 × 700 / 1366 × 1600 / 150 × 150 / 1602 × 1876