Now available for pre-order

No ring.
No watch.
Just sleep.

Halo monitors your whole family's health through the walls — breathing rate, sleep stages, heart rate, and more. Plug it in. That's it.

Halo sensor in bedroom
Pre-order — $49 See how it works

$9.99/month after. Cancel anytime.

Halo sensor in bedroom

Most of what matters about your health
happens while you sleep.

Sleep is the only honest signal — no movement, no stress, no noise. Just your body telling the truth every night. Halo listens passively, through the walls, without waking anyone up.

Halo sensor

One plug. Every room.

A wall-plug sensor that disappears into any outlet. Plug it in and it immediately begins reading WiFi signals to detect breathing, motion, and health patterns — through walls, through sleep, through anything.

No camera. No microphone. No wearable on anyone's wrist or finger.

  • Detects breathing rate to ±0.5 BPM accuracy
  • Room coverage up to 30 feet through walls
  • Works with any 2.4 GHz or 5 GHz WiFi
  • Setup takes under 3 minutes via the Halo app
  • One sensor per room — no hub required

Three steps. Then forget it.

Step 01
Plug Halo in

Plug in

Push Halo into any standard outlet. The LED ring glows once and the sensor starts searching for your WiFi.

Step 02
Halo app

Connect

Open the app, tap the sensor, enter your WiFi password. Takes about 90 seconds. Name the room — "Master Bedroom," "Nursery" — and you're done.

Step 03
Sleeping

Sleep

Go to bed. Wake up to last night's sleep score, breathing data, and any findings worth knowing about. Halo never stops working.

One sensor per room.
Everyone in the picture.

Add a sensor to every room that matters. Halo learns each person's patterns and builds a health picture that's personal to them — automatically.

Nursery

Nursery

Ellie's breathing rate: 34 BPM. Zero pauses tonight. No camera. Nothing in the crib.

Grayson's room

Grayson's room

Active at 12:48 AM. Fourth late night this week. You know before you ask.

Guest room

Guest room

When grandma stays over, Halo adjusts. Add a sensor, tag her name, and she has her own health history.

Beckett's room

Beckett's room

Breathing elevated 3 days in a row. Sometimes precedes illness. Halo flags it before symptoms show.

What your home
already knows about you.

Halo isn't a sleep tracker. It's a continuous passive health monitor. It runs while you sleep, while you rest, while you watch TV — and it learns what normal looks like for you.

Phase 1 · Active

Sleep stages

Light, deep, and REM tracked through breathing patterns. Wake up to a score, a hypnogram, and time in each stage.

Phase 1 · Active

Sleep apnea detection

Breathing pauses over 10 seconds flagged and counted. AHI calculated overnight. Shareable report for your doctor.

Phase 1 · Active

Illness early warning

Your breathing rate rises 2–3 days before symptoms appear. Halo tracks your personal baseline and flags the deviation.

Phase 1 · Active

Infant breathing monitor

Breathing rate, pause detection, time asleep. Nothing in the crib. Nothing on the baby. Just peace of mind.

Phase 2 · Coming

Gait & fall risk

Walking speed and stride change weeks before a fall happens. Halo learns your pattern and flags the decline early.

Phase 1 · Active

Two-person tracking

Two people, two different breathing signatures. Halo learns to separate them. Separate sleep scores, separate reports.

Built for privacy.
By design.

Halo reads WiFi signal patterns — the same physics your router already uses, pointed at the room instead of the internet.

There is no image. No audio. No footage to subpoena, hack, or leak. The signal Halo reads cannot be converted back into a picture of your family.

Camera-free

No image is ever created. Nothing to hack, subpoena, or leak.

Microphone-free

No audio. No voice. The hardware doesn't exist in the device.

WiFi sensing only

Radio signals, not surveillance. Physics protects your privacy.

End-to-end encrypted

Your health data is locked in transit and at rest. Always.

Never sold

We make money from subscriptions, not your data. Full stop.

You own it

Export or delete your full health history anytime. No hostage data.

Simple. No surprises.

Buy the sensor once. Subscribe for the intelligence layer. Cancel anytime.

Halo Sensor
$49
one-time purchase
  • One sensor, one room
  • Plug-in, wall-outlet form factor
  • Works with Halo app (iOS & Android)
  • Presence and motion detection included free
  • Add more sensors for additional rooms
Buy the sensor

First 30 days free · Ships Q3 2026

Your home already
knows more than
you think.

Pre-order Halo — $49 Free shipping · 30-day returns · Ships Q3 2026