https://www.cnet.com/news/galaxy-s10-vs-galaxy-s9-s10-plus-s10e-s10-5g-whats-new-specs-features-compare-camera-price-reviews/

Both phones are larger than last year's Galaxy S9, which had a 5.8-inch screen. The Galaxy S9 also only had a single 12-megapixel rear camera, a Snapdragon 845 processor and less expandable memory (up to 400GB compared to the Galaxy S10s' 512GB). The Galaxy S9 had a smaller, third memory option too. It had a 64GB tier, while the Galaxy S10 and S10 Plus start at 128GB and 512GB, respectively.

New to the Galaxy lineup is the Galaxy S10E. Though it still has a premium $750 price tag, it's not as expensive as the Galaxy S10 and the S10 Plus. With its 5.8-inch screen it's slightly smaller than the rest and has a smaller-capacity 3,100-mAh battery. It only has dual rear cameras and, like the Galaxy S10, a single front-facing shooter.