4SIDesign preview
Presence Key

A Key that feels like yours.

Choose a finish. Take a closer look. Make it yours.

316L Steel

Choose your Key finish

Brushed 316L steel

Free. Non-binding. No payment.

Planned for 2027

Product & reservation details

Presence Key is in development. Images show the selected finish; final materials, specifications and availability may change. A reservation records interest, not an order or guaranteed allocation.

Reservation terms

Made for everyday life.

Offline.
No Wi-Fi. No Bluetooth.
No wireless pairing.
6+ months.
Target battery life.
Designed for everyday use.
Your fingerprint.
Personal verification,
directly on the Key.
How the Key works
Offline Key. Connected services.
The Key is designed to work without a wireless connection. A compatible reader checks it. Presence Personal and the services you use have their own connectivity requirements.
Months of battery life.
Our target is more than six months, based on a planning profile of 10 uses a day. Actual runtime depends on use, temperature and battery ageing. The target is subject to hardware testing.
Personal to you.
The Key is designed to verify your fingerprint locally before a reader can check it. Having the Key alone is not intended to be enough.

How it works

  1. 01

    A service asks

    A participating service requests a physical check.

  2. 02

    You present your Key

    The check takes place at an enabled checkpoint.

  3. 03

    The service decides

    Its permissions, limits and safeguards still apply.

A connected Daily Key shown in Presence Personal at night.
Presence Key and a phone on a city terrace at dusk.

Useful next steps

Appearance

Choose how 4SI looks on this device.

Color theme

Automatic follows your device’s light and dark settings.

4SI

Open Presence

Presence PersonalYour Keys and access.Presence EnterpriseManage your organisation.

Reserve your Key

Presence Key
Brushed 316L steelPlanned arrival 2027 · Timing may change · Free · Non-binding

All of 4SI

Presence
For institutions
Research
Company & Fellowship
Legal & transparency
For Safety Group Inc.

11201 North Tatum Boulevard
Suite 300 PMB #365
Phoenix, AZ 85028, United States

Contact 4SILegal notice
Presence Key opened