Elegoo Saturn 4 Ultra vs Elegoo Neptune 4 Plus

These are different machines for different jobs. The Saturn 4 Ultra is a resin printer: it delivers 12K detail at 19 x 24 micron XY resolution and prints fast at up to 150 mm/h thanks to tank tilt, but you handle resin, wash and cure parts, and the build volume is small. The Neptune 4 Plus is a large FDM printer: 320 x 320 x 385 mm, up to 500 mm/s with Klipper, and it runs PLA, PETG, ABS, ASA, TPU and nylon. Reviewers rate both well; the Saturn's 4.8 from 1,280 ratings reflects a mature, popular resin machine, while the Neptune's 4.7 from 205 ratings comes with praise for big, reliable prints and criticism for its footprint and lack of included filament.

• Choose the Saturn 4 Ultra if you need fine miniature or figurine detail, smooth surfaces and fast resin output, and you are ready for washing and curing.
• Choose the Neptune 4 Plus if you want large, strong functional parts in everyday filaments with no resin handling.