If your phone feels sluggish or takes longer to open apps, upgrading to one of the best Android phones for battery life is an option. A simpler (and cost-effective) solution might also do the trick: ...

Over time, your Android phone stores temporary files called cache to speed up app loading. But when this cache builds up, it can slow your device down, cause apps to crash, and eat up valuable storage ...

Is WhatsApp crashing, taking longer than usual to open chats, or having trouble loading media files even on a stable internet connection? It's possible it could benefit from clearing the app's cache.