02 / Use Presence Key to
Enter.
Home, work, hospitality and the places that are available to you.
Presence Key · Planned 2027
One Key.
Only yours.
Enter, pay, sign in and travel with one personal Key that works only for you.
Your identity stays yours: no deepfake, person or machine can act as you across the digital or physical world.
OfflineBiometricReplaceable
01 / One Key. One person.
Yours
by design.
Presence Key recognizes the person it was enrolled to—and becomes useless to anyone else.
- Only you
- Bound to your enrolled biometrics.
- Always ready
- No wireless connection or pairing.
- Easy to replace
- Lose it, lock it and receive another one free.
02 / Use Presence Key to
Move.
Your car, shared mobility and the objects made available to you.
02 / Use Presence Key to
Confirm.
Payments and important actions with one deliberate physical gesture.
02 / Use Presence Key to
Sign in.
Accounts, devices and services without another password to remember.
02 / Use Presence Key to
Travel.
Tickets, check-in and identity moments through one personal interface.
Future partner experiences are directional and not currently available services.
03 / Wear it your way
Part of your life.
Not another device.
Move across the image field. Hover, focus or use the arrows to let the story shift.
Only you
Useless in
the wrong hands.
Your Key unlocks for you. If it disappears, your trust does not disappear with it.
04 / Small by design
Easy to carry.
Hard to forget.
A 3 × 2 cm object, designed as something personal rather than something technical.
05 / One interface
One Key.
Many moments.
Designed to confirm a payment with one physical action that belongs to you.
Future partner experiences are directional and not currently available services.
06 / The Presence vision
80→1
Everything you care about. One trust system.
Cards, keys, passwords, tickets and accounts divide one life into separate relationships. Presence brings them toward one personal physical relationship that moves with you.
Many separate relationships
One personal relationship4SI
PresencePhysical. Personal. Yours.
Confirm a payment with one physical action that belongs to you.
Discover the Presence vision →80 → 1 is a conceptual future direction, not a count of currently supported services. Availability depends on partners, regulation and deployment.
07 / Lose it. Move on.
Nothing to steal.
Nothing to fear.
A lost Key is useless to anyone else. Deactivate it, receive a replacement free and continue.
How Presence Key works08 / Make it yours
Choose a finish.
The form stays the same. The expression is yours.
Presence Key$0Free, non-binding release reservation
Reserve this Key
Beyond the Key
Trust moves from one person to the systems around them.
4SI works with organizations and researchers to extend the same physical principle into products, places and consequential decisions.
