Simple mobile communication UK-based support

← All articles

Footprint and personal safety · 11 August 2026 · 7 min read

What Is a GPS Personal Alarm and How Does It Work?

Understand SOS buttons, mobile connectivity, location information, two-way voice and the response plan behind a GPS personal alarm.

Older man walking confidently in a park while wearing a GPS personal alarm

A GPS personal alarm is a portable device designed to help someone request assistance away from a fixed home alarm base. It combines an alert button with mobile communication and location technology.

Products and services differ, so always check the exact response, coverage, charging and monitoring arrangement before choosing one.

The main parts

Most mobile GPS alarms involve four elements:

  1. An SOS action. The wearer presses or holds a clear button.
  2. Mobile connectivity. The device uses a SIM or built-in service to send an alert and make contact where a supported network is available.
  3. Location information. GPS and sometimes other positioning methods help identify where the device is.
  4. A response pathway. Family, a manager or an alarm receiving centre follows an agreed process.

Some products also offer safe-zone alerts, fall alerts, battery notifications or a secure portal. These features should be assessed individually rather than assumed.

How OwnFone Footprint works for families

Footprint is a wearable GPS tracker and personal alarm with an SOS button and two-way hands-free communication. It can pair with up to three family mobiles.

When the SOS is held for the configured period, Footprint is designed to send paired contacts a text with a location link, then call them in sequence until someone answers. Family members can request its current location and configure safe zones. See Footprint for families for current confirmed details.

Where it may help

A mobile alarm can support someone who wants reassurance when walking, shopping, gardening beyond the range of an in-home system or travelling locally. Professional configurations may support telecare or lone-worker services.

It does not guarantee that a person will always be located instantly or that a contact will answer. Battery, environment and network availability all matter.

Questions to ask before buying

  • Who receives the alert?
  • Is monitoring included or family-led?
  • What happens if the first contact does not answer?
  • How often must it be charged?
  • How is location data protected?
  • Can the person comfortably wear and activate it?
  • What does the service cost after purchase?

A personal alarm works best when the wearer understands it, agrees to the arrangement and practises the complete response pathway.

Explore Footprint or review current device and service pricing.

Simple starts here

A simpler way to stay connected.

Build a personalised OwnFone online or speak to our team about telecare and Footprint.