Phone Refresh rate test
Measure browser frame timing for 5 seconds. Keep this tab visible.
Instructions
Browser estimate, not certified display Hz. Power saving, variable refresh rates and browser limits can change the result.
Use an up-to-date mobile browser: Chrome, Safari, Samsung Internet, Firefox or Edge. If opened inside another app, open this link in your regular browser. Feature availability varies; unsupported is not a failed test.
Your phone check report
Working results are confirmed by you. Unsupported or skipped checks are not failures. This is an observation report, not a hardware certification.