What's the difference between a compact/one-handed recip saw and a full-size one?

Compact saws (like the DEWALT Atomic and XR compacts) are roughly 12–14 inches long and can be used one-handed for overhead, between-stud, and ladder work. Full-size saws have longer strokes (typically 1-1/8 inch+) and more aggressive cutting speed for thick lumber and demolition. Specialist subreddit users routinely note that for general DIY, a compact is more useful day-to-day even if it's not the fastest cutter.