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What is jitter?

Jitter is the variation in ping from one moment to the next. Your average ping can look fine while jitter quietly ruins real-time apps.

By Rehan YousafUpdated October 10, 20264 min read

Jitter in one sentence

Jitter measures how unevenly data packets arrive. SpeedLens calculates it as the average difference between consecutive ping samples; under 15 ms is good for calls and gaming, and over 30 ms causes noticeable glitches.

Common causes and fixes

Wi-Fi interference — switch to 5 GHz or use a cable.
Other devices downloading — pause updates and backups.
Bufferbloat — enable SQM/QoS on your router.
An overheated or old router — restart it or replace it.

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Jitter in one sentence

Common causes and fixes

Keep reading

Jitter in one sentence

Common causes and fixes

Keep reading