On-device by default
A 3-billion-parameter model runs locally. Your voice, calendar and notes never leave the pebble. Cloud is opt-in, per task, never per account.
Reservations open · First units ship March 2027
Intelligence,
in the palm of your hand.
Halo One is a smooth glass pebble that lives on your desk, hears you, and answers out loud. A ring of light around its edge tells you what it caught, what it is working on, and whether it needs you — before a single word is spoken.
- Free shipping
- 30-day returns
- 2-year warranty
- No subscription
- Days per charge
- 5
- Offline model
- 9hrs
- Wake to listen
- 20ms
- Sealing
- IP67
Turn the ring toward you and it faces you. Halo One is a listening device, not a screen.
The interface
A ring of light.
An entire interface.
Most assistants give you a screen to stare at. Halo One gives you a light to read. Colour, motion and brightness carry every bit of state — so you can keep your eyes on your work and still know exactly where you stand.
-
Listening
A slow cyan breath. No wake word, no button — start talking and Halo is already there.
-
Thinking
Violet orbit. The answer is being built on the pebble itself, with the radio off.
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Answering
Steady white, dimmed to a whisper if the room is quiet. Pinch to adjust the volume.
-
Needs you
Amber double-pulse. A confirmation, a payment or a door is waiting on your yes.
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Sealed
Magenta, then nothing. The physical switch has cut mic, sensors and radio at the circuit.
Why it exists
Quiet, complete,
and finally private.
Halo One was designed around a single constraint: it should be good enough to use every day, and quiet enough to live in a room. Everything else was removed.
Haptic glass
A linear actuator sits under the glass. Halo taps your finger for confirmations, and points you the right way when you walk in the door.
Speaks, doesn't notify
No badge counts, no red dots, no feed. Halo answers once, in full sentences, then gets out of the way. Silence is the default.
A physical privacy cut
Flip the switch and the microphone, sensors and radio lose power at the circuit. Not a setting. Not software. Cut off.
Five days, one cable
USB-C at 40 minutes to full, and a battery designed to outlast your attention span rather than your calendar.
Built to be repaired
A modular core, a shell that swaps in seconds, and a two-year guarantee that includes one free shell refresh so it never becomes waste.
Make it yours
Three finishes.
One obsession.
Each shell is cast recycled aluminium, then sealed under optically clear borosilicate glass. Shells swap in seconds and cost a fifth of the device.
Shown: Graphite · 62 × 58 × 21 mm · 48 g
- Dimensions
- 62 × 58 × 21 mm
- Weight
- 48 g
- Shell
- Optical borosilicate glass over recycled aluminium
- Light
- 96 micro-LED ring, 16.8M colours, 1,200 nits peak
- Audio
- 4-mic far-field array, 360° speaker, haptic actuator
- Compute
- Halo M1, 8-core, on-device 3B model
- Memory
- 8 GB LPDDR5
- Storage
- 64 GB, encrypted at rest with device-held keys
- Battery
- 5,200 mAh · up to 5 days typical use
- Charging
- USB-C PD, 0–80% in 32 minutes
- Connectivity
- Wi-Fi 6, Bluetooth 5.3, Thread — no cellular radio
- Resistance
- IP67 dust and water sealed
- Warranty
- 2 years, including one free shell refresh
Comparison
Against the assistants
you already own.
| Feature | Halo One From $199 | Phone assistantFree | Smart speaker$99–$199 |
|---|---|---|---|
| On-device model | Always, offline | Limited, needs a ping | None |
| Answers out loud, fully | Yes | Reads the web page | Short answers only |
| Physical privacy cut | Mic, radio, sensors | Software only | Mic-off button |
| Works with no network | Full feature set | Degraded | Yes, but limited |
| Battery | 5 days | Charged with your phone | Plugged in |
| Screen required | Never | Always | Never |
| Monthly fee | $0 | Varies by vendor | Varies by vendor |
In the box
Everything you need.
Nothing you don't.
- Halo One in your chosen finish
- Halo Dock — magnetic, 1.5 m braided USB-C
- 30 W USB-C wall adapter
- Second shell to swap, on us
- Two-year Halo Care cover
Halo Dock
Live
Sealed
Microphone powered · radio armed
Privacy
Off means off.
Most privacy switches are a request to some software you can't audit. Ours is a physical break in the circuit: flipping the switch removes power from the microphone, the motion sensors and the radio. Halo One cannot listen when it has nothing to listen with.
- No cloud, no round tripCommon requests never leave the device, even when you are online.
- Keys held on-deviceStorage is encrypted with a key that never leaves the Halo core.
- Measured, not promisedIndependent hardware teardowns ship with every review unit.
- One-tap deletionAsk Halo to forget, and it forgets — including from the dock.
Early voices
People stopped
looking at screens.
“I stopped checking my phone the second I walked in the door. The little amber pulse told me what it needed, and that was the entire conversation.”
“It's the first assistant I've actually let near my calendar. The seal is a switch, not a promise, and I can see the circuit when I open it up.”
“My dad is 78 and refuses apps. He talks to the pebble, the ring turns white, and he laughs. That's the whole review.”
Reserve
Pick your halo.
Reservations are refundable until your unit ships. No subscription, no account required.
Halo One
$199
Graphite · ships March 2027
- Device with 96-LED ring
- On-device 3B model
- Hardware privacy cut
- USB-C cable
Halo One + Dock
$249
Any finish · ships March 2027
- Everything in Halo One
- Magnetic Halo Dock
- 30 W adapter
- Two-year Halo Care
Founders' Edition
$299
Numbered run of 2,000
- Ember or Pearl finish
- Engraved case number
- Second shell, any finish
- Founders' channel in the app
Prefer a note first?
Leave an email and we'll hold your place in the queue and tell you the moment reservations open in your region.
Questions
Before you ask.
Does Halo One need an internet connection?
No. The full assistant — voice, reminders, timers, notes, light and home control — runs on-device. Internet is only required for live web answers, streaming music and calls, and each of those asks first.
What can the privacy switch actually do?
It opens the microphone and radio circuits physically. When the switch is thrown, the device is electrically unable to record or transmit. The light turns magenta, and no software override exists.
How long does the battery really last?
Up to five days with light use and roughly forty voice queries a day. Continuous conversation drops that to about nine hours. A full charge takes 32 minutes on the included 30 W adapter.
Is there a subscription?
No. Everything shipped today is free forever on the device. Optional cloud features, when they exist, are billed per task and never silently enabled.
Which phones and platforms are supported?
Anything that speaks Bluetooth 5.3: iOS 17, Android 13 and later, macOS, Windows 11 and Linux. The Halo app is a thin controller — the intelligence lives in the pebble.
Can I develop for it?
Yes. A public SDK exposes the light ring, the haptic engine, local skill APIs and the on-device model runtime. Early access opens to Founders' Edition owners first.
Bring it home.
Ninety-four thousand people are already waiting for a Halo.
Reserve Halo One $199 Ships March 2027 · refundable until it does