4SI
Presence / Object 01Planned 2027
Presence Key in Brushed 316L steel
Brushed 316L steelForm view

Presence Key

One Key.
Only yours.

A personal physical Key, designed to confirm you are present for a specific payment, sign-in or access request at a participating service.

Key$0

The Key is intended to be provided free of charge. No payment is taken during this reservation.

FinishBrushed 316L steel
No payment detailsNon-bindingChange your finish later
Reservation, not an order

This free request does not create a purchase contract or guarantee production, allocation, availability or shipment. No payment details are accepted.

Reservation terms
Product design details
Connectivity
None
Binding
Biometric
Target life
To be validated
Replacement
Designed for it
Ivory Presence Key worn on a tailored lapel

Made to stay with you

Wear it.
Carry it.
Make it yours.

Presence Key is designed as a personal object—not another device that asks for your attention.
The true scale of Presence Key in a hand

Why it is different

Your presence.
For this request.

When a participating service asks, you present your Key at an enabled physical checkpoint. The intended result is specific to that request. The service keeps its own permissions and final decision. Supported integrations are not available today.

Offline
The Key itself is designed without wireless connectivity.
Personal
Designed for its registered person—not possession alone.
Replaceable
Lost Keys are designed to be deactivated. Free replacement is planned; final program terms will apply.

Planned release · 2027

Reserve interest.
Decide later.

No payment method, delivery address or purchase commitment is required today.

  1. 01

    Choose a finish

    Explore the same eight material studies shown on the 4SI home page.

  2. 02

    Submit interest

    We record one free, non-binding release reservation per person.

  3. 03

    Review the release

    If the Key becomes available, you will see the final terms before making any decision.