Are smart scale body fat readings actually accurate?

Across the reviewers we read — including threads on r/loseit, r/workout and r/MacroFactor — the consensus is that consumer bioimpedance scales are not clinically accurate for body fat. They can be reasonably repeatable, which makes them useful for tracking trends over weeks and months, but multiple Reddit threads comparing scale readings to DEXA scans report errors of several percentage points. Treat the weight number as the trustworthy figure and the composition numbers as directional.