So as we can see, the Galaxy S21 Ultra has a Quad camera setup while the S21+ gets three cameras. The camera module of the S21 Ultra is much bigger than that of S21+. Speaking of the camera specs shared by the source, the Galaxy S21 Ultra has a primary 108 Megapixel camera with the Samsung’s HM3 sensor, a secondary 12 Megapixel ultra-wide-angle camera, a 10 Megapixel Periscope-style telephoto camera with 10X Optical Zoom, & another 10 Megapixel telephoto camera with 3X Optical Zoom.
The Galaxy S21+ has a primary 12 Megapixel camera paired with a 64 Megapixel telephoto camera & a 12 Megapixel ultra-wide-angle camera.
As we know already, the Samsung Galaxy S21 Ultra has a 6.8-inch WQHD+ LTPO panel with 1-120Hz Adaptive refresh rate & 1,600nits peak brightness. There is Snapdragon 875/Exynos 2100 SOC powering the device & the phone has a 5,000mAh battery. S21 Ultra also supports the S-Pen, but there is no S-Pen included with the phone. The S21+ has a 6.7-inch Full-HD+ LTPS 120Hz panel, & a 4,800mAh battery. The S21 has a 6.2-inch LTPS 120Hz panel, a 4,000mAh battery & the exact same camera setup present on the S21+.