Is my Wi-Fi fast enough to mirror?
Every kind of screen mirroring - AirPlay, Chromecast, Miracast or the Screen Mirroring app - rides on your local Wi-Fi, so a strong, steady signal matters more than raw internet speed. This quick test checks your connection's speed, latency and jitter, then tells you the resolution it can handle. Nothing leaves your device.
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Reference
How much speed does screen mirroring need?
Rough guide for a steady wireless mirror. Mirroring is also sensitive to jitter and latency, not just raw speed, which is why a fast line can still stutter on a congested Wi-Fi.
| Quality | Recommended download | Good for |
|---|---|---|
| 540p | 2 Mbit/s and up | Slides, photos, web pages |
| 720p | 4 Mbit/s and up | General use, most video |
| 1080p | 8 Mbit/s and up | Sharp full screen video |
| 4K | 25 Mbit/s and up | Large 4K TVs, fine detail |
Why a speed test still helps: mirroring sends the picture device to device over your Wi-Fi, not over the internet, so what really counts is a strong, low jitter signal. This test measures the speed and steadiness of your connection as a stand-in for that Wi-Fi health. For the truest result, run it on the device you will mirror with, on the same Wi-Fi.