Here are 3 reasons why, even in 2025, I always enable a pattern on every new Android device I personally set up. It makes unlocking fluid and convenient Swiping is easier than tapping ...

The pattern must connect at least 4 dots. You don’t want to create one that’s too easy to figure out — just as with a PIN — but you also don’t want to make it so complex that you forget it.

Researchers from Lancaster University, Northwest University in China, and the University of Bath have found that Android's screen patterns aren't as safe as they seem to be, not even complex ones.

Greasy finger traces can potentially reveal the pattern used to unlock Android devices. Typing a PIN is better, a Googler concludes. 'Reverse smudge engineering' foils Android unlock security - CNET ...