Preset · Smartphones
Budget under $400 Smartphones
Compare smartphones side by side — Mars Score, battery, display, cameras, performance, and price across every major brand.
75 probes in this view
Reader questions
Frequently asked
What are the best budget under $400 smartphones?+
OnePlus 15 leads the budget under $400 smartphones segment with a Mars Score of 78.4, ranked purely by the transparent formula against this filter.
How many budget under $400 smartphones are there?+
75 smartphones in the catalogue match the budget under $400 filter, each with a full spec sheet and a Mars Score so you can compare them side by side.
How is the budget under $400 smartphones list ranked?+
Ranking is algorithmic — the category Mars Score formula normalizes each matching product's specs against the published category weights. No editorial picks, no paid placement.