Can Wi-Fi really “see” through walls and fingerprint your body? In this video I test a Li-Fi kit from AeroLi-Fi—an infrared, light-based alternative to Wi-Fi—to measure real-world speeds and discuss privacy. I show the IR link on a phone camera, connect a USB dongle to a Li-Fi access point, and run two tests: an internet speed test (Starlink-limited to ~50 Mbps) and a local OpenSpeedTest (~60/60 Mbps). This specific kit is rated up to 100 Mbps, while other Li-Fi systems reach gigabit/10-gig speeds, with terabit-class demos in labs.
Because Li-Fi uses light (not radio), the signal doesn’t pass through walls or windows easily—reducing tracking/fingerprinting risk and creating interesting use cases (like secure military tents). If you’re curious about EMF alternatives, privacy-minded networking, or next-gen connectivity, this hands-on demo is for you.
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