Capability Check

Not started

Video resolution

480p 720p 1080p

Hide preview while recording

Drawing the live picture costs the phone extra work and can lower the frame rate. Frame times are still logged.

Flashes the screen white for 0.3 s. Do it at the start and the end, with the camera seeing the flash or a clap.

Feature	Supported	Rate	Null %	Notes

Log

How to run the test

Tap Grant permissions and allow camera, location and motion.
Tap Start 60 s test. Keep this page open and the screen on.
Right after the start and again near the end, tap Sync mark while the camera sees the screen (use a mirror) or clap in front of the lens.
When it stops, check the summary and tap Download results JSON (and the video if wanted).

Best test: in a moving car (passenger seat), phone mounted as it will be when recording. Nothing is uploaded; results stay on this phone until you download them.

The test checks video formats, frame timing, GPS, gyroscope, screen wake lock and torch.

Resolution and "Hide preview" let you compare settings: run one test per setting and compare the frame rate in the summary (20 fps or more is the goal). Choose them before Start; the downloaded file names include them.