Google Pixel 3 and the Pixel 3 XL were released together. Pixel 3 has a 5.5-inch screen, whereas the Pixel 3 XL has a 6.3-inch screen. On the other hand, the Google Pixel 2 Xl came out with Android 8.0 Oreo, 6-inch display, and Qualcomm Snapdragon 835 processor, but the Pixel 3 came with Android 9.0 Pie and Qualcomm Snapdragon 845.