How a room can sense you without seeing you

The Wi-Fi in a home is constantly bouncing off walls, furniture, and people. Every time someone moves — a step across the floor, a sudden fall — they change the way those signals travel, in tiny but measurable ways. Most devices throw that information away. Stillsense reads it.

From signal to meaning

A small sensor pairs with the Wi-Fi in a room and continuously reads the fine detail of the signal — what engineers call Channel State Information. No image is ever formed, because there's no camera to form one. On the device itself, Stillsense interprets those changes: it recognises presence, movement, and falls, and learns the ordinary rhythm of a normal day, so it knows what "unusual" looks like.

It's the same physics a router handles millions of times a second. Stillsense simply listens to it differently.

Why it works where cameras can't

Because Stillsense senses the whole space rather than a camera's cone of view, it has no corner it can't see. It works in the dark, under blankets, and around obstacles. And because everything is computed at the edge — in the home, not the cloud — the raw signal never leaves the room.

Honest about what's proven

Sensing movement from Wi-Fi is well understood in research. Making it dependable in a real, lived-in home — with pets, draughts, and furniture that moves — is the harder part, and it's where we focus. We publish the maturity of each capability plainly: presence, motion, bed-exit, and falls are available today; fall detection carries an independent validation study before any safety-grade guarantee; and anything that isn't dependable enough for a real home, we simply don't ship.