Although not the first 8K mobile phone to market, the Samsung S20 range is powered by the Qualcomm Snapdragon 865 processor and offers four options at similar specs but different price ranges.
The Samsung 8K video camera allows for great depth of field versus 4K options but lacks the flexibility of original composition that 4K allows. The trade-off is the ability to zoom in and crop without getting too much noise or losing quality. For the lower-end models S20, S20+, and S20 5G, the zoom is a little less impressive at 3x. The S20 Ultra comes with a 10x Hybrid Optic Zoom and the AI-driven Super-Resolution Zoom feature so that you can create a variety of high-quality compositions from just one source. For most people, this will be more than enough to give you some creative range.
For resolution and fps, all S20 models support UHD 8K (7680 x 4320) @ 24fps. 24fps is classic movie pace but can be limiting for sports-style shooting. The upside of this limitation is smaller file sizes, also helped out by the up to 1 TB of external storage available for every model.
Probably the most exciting thing about the S20 models is the Single Take functionality. It revolutionizes the way you can shoot stills and video on a mobile phone. By just tapping once on the sensor and creating some movement, you can end up with a random mix of photos, video, ultra-wide, or hyperlapse. Not precision perfect, but a fun way to shoot.
Recording time is limited to 5 minutes for the usual overheating reasons, but for anyone starting or experimenting with 8K, the S20 range is an excellent place to start.