I spend 30 seconds a month refreshing my Samsung watch, and it's made a huge difference

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ZDNET's key takeaways

• Clearing cache speeds up a slow Galaxy Watch.
• Cache buildup can cause lag and drain the battery.
• Restarting isn't enough, so you'll want to manually clear the cache.

Your Galaxy Watch is not so different from your phone or even a messy room. When put to great use, it, too, gets cluttered.

By continually using your Galaxy Watch, regularly switching between apps and functionalities, or running too many apps at the same time, you're bogging it down with data that clutters it and slows performance. This results in slower performance, frozen screens, and an annoying user experience.

Also: I wore the best smartwatches from Samsung, Apple, and Google - here's how Galaxy Watch 8 wins

Luckily, hope isn't lost -- and you don't need to buy another device to ...