RunnerGuard

Know when someone is gaining on you.

RunnerGuard clips to your belt bag and watches behind you while you run or walk. If someone closes in, you feel a quiet buzz. Nobody else hears a thing.

Early testers get first access to the prototype. No spam, one email when there’s news.

It watches the one direction you can’t.

Headphones, traffic and focus all work against hearing someone behind you. RunnerGuard covers that blind spot with a small radar and tells you only what matters.

Watches behind you

A 24 GHz radar faces backward and sees through fabric, darkness and rain, about six meters out.

Ignores what isn’t gaining

Parked cars, fences and people walking the other way don’t count. Only something actually closing the gap does.

Tells you quietly

A double buzz against your back, plus an optional cue in your earbuds. You know, and whoever is behind you doesn’t.

Not how close. How fast it’s getting closer.

Most sensors react to anything nearby, which is why they’re useless on a run: everything is nearby. RunnerGuard measures closing speed instead.

When you run forward, everything standing still behind you gets farther away. A person who’s gaining on you is the rare thing that gets nearer. That difference is what the device listens for, so it stays quiet through a busy park and speaks up when it counts.

Panic buttonYes
Fall detectionYes
Warns before someone reaches youYes
Silent, so it doesn’t tip anyone offYes
No camera, no recording of peopleYes

Made for people who run or walk on their own.

  • Early mornings and late eveningsWhen paths are empty and light is low.
  • Runners with headphones inKeep your music. Let the buzz do the listening.
  • Walkers on neighborhood loopsSame protection at a walking pace.
  • Clips to what you already wearA small pill-shaped puck for a belt bag strap, running belt or vest.
radar window status light

Where we are.

RunnerGuard is an early-stage hardware project. Here’s an honest look at progress so far.

  1. Detection proven on the benchThe radar tracks a person approaching and walking away, and the alert fires and clears correctly.
  2. Haptics, phone link and data logging workingThe buzz, a Bluetooth connection to a phone, and on-device recording of every test.
  3. First circuit board in productionA dedicated board to replace the breadboard prototype.
  4. Field testing on real runsTuning the detection for a body in motion, with early testers.
  5. Enclosure, battery and appThe clip-on puck, all-day power, and alerts through your earbuds.

No camera. On purpose.

RunnerGuard senses movement, not faces. It doesn’t record video, doesn’t judge anyone by how they look, and doesn’t capture images of the people around you. It only knows that something is getting closer, and how fast.

Be one of the first to run with it.

Join the waitlist for early tester spots and updates as the prototype moves toward real runs.

Questions, partnerships or press: eddie@runnerguard.fit