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Test your real resolution.
See exactly what resolution and frame rate your webcam is delivering right now, and whether it's capable of more.
Resolution guide
Resolution and frame rate, explained without the jargon
Resolution is how many pixels make up each video frame — 720p (1280×720), 1080p (1920×1080), and 4K (3840×2160) are just shorthand for the frame's height in pixels. More pixels means more visible detail, but only up to the point where your screen, your bandwidth, and the app on the other end can actually use it. Frame rate (fps) is how many of those frames are captured per second — 30fps and 60fps are the two you'll see most often on a webcam.
When higher resolution matters, and when it's wasted
For an ordinary one-on-one video call, 720p is genuinely fine — the person on the other end is looking at your face in a small window, not counting pixels. 1080p becomes worth it for interviews, recorded presentations, or anything where the footage might be reviewed closely or projected larger. 4K is mostly relevant if you plan to crop, zoom, or reframe the shot after recording — for live calls, it's almost always more data than the call app will use, meaning it's wasted bandwidth rather than wasted quality.
Why video-call apps downscale your camera anyway
Even if your webcam supports 1080p, Zoom, Teams, and Meet often request a lower resolution by default to save bandwidth and CPU on both ends of the call — especially in group calls with several video feeds at once. That means the number this test reports can be higher than what a specific app actually uses on a given call; some apps let you raise the default manually in their video settings if you want the higher resolution every time.
30fps vs 60fps: does it matter for a call?
For a talking-head video call, 30fps and 60fps look essentially identical to most viewers — the face isn't moving fast enough for the difference to register. Frame rate matters far more for fast motion: gaming streams, screen-share demos with quick mouse movement, or anything where motion blur or choppiness would actually be visible. If your camera only offers 30fps, that's not a real limitation for ordinary calls.
Aspect ratio basics: 16:9 vs 4:3
Aspect ratio is the width-to-height shape of the frame. 16:9 (widescreen) is the standard for modern video calls and matches almost every monitor and recording tool in use today; 4:3 is the old, near-square TV shape that mostly survives in some older webcams and security cameras. If your camera reports 4:3, most call apps will letterbox or crop it to fit — worth knowing before you assume something is broken.
If the numbers here look lower than expected even after accounting for app downscaling, check whether an outdated driver is capping your camera, or confirm the picture itself looks right with the lighting check.
FAQ
Why is my resolution lower than my camera's spec sheet?+
Video apps and browsers often request a lower default resolution to save bandwidth and CPU. Your camera may support 1080p or 4K, but the app decides what to actually ask for — some apps let you pick manually in settings.
Does higher resolution always mean better video?+
Not always — a higher resolution with poor lighting or a weak sensor can still look worse than a well-lit 720p stream. Resolution is one factor; lighting and compression matter just as much.
How is this measured?+
We request the highest resolution your browser will negotiate with the camera, then read the real settings and capabilities the browser reports back — the same numbers your video app sees, not a spec-sheet guess.