Is it legal to use a Bluetooth tracker in the UK?

Is it legal to use a Bluetooth tracker in the UK? Yes, on things you own — your keys, your bag, your bike, your car, your tools. No, on another adult or on property that is not yours, where covert tracking can amount to harassment or stalking. This sets out the definitions, the grey areas and the safeguards built into the technology. It is general information, not legal advice.

What is a Bluetooth tracker, legally speaking?

It is a passive radio beacon attached to an object, not a surveillance device pointed at a person.

The distinction runs through everything below. A tag broadcasts an encrypted identifier. Passing phones relay a position for it. It records no audio, keeps no log on the device, identifies nobody, and reports only to the single account it is paired with. Attached to your own suitcase, it is legally indistinguishable from writing your name on the label.

What changes the analysis is not the device. It is who or what it is attached to, and whether they know.

Which uses are clearly lawful?

Tagging property you own, for your own benefit, is lawful.

• Your keys, wallet, bag, laptop case, luggage.
• Your bicycle, motorbike, car, van, caravan, tools.
• Household items, a pet's lead, a child's school bag where your child knows about it.
• Items belonging to a family member who has agreed to it.

There is no registration scheme, no licence and no notification requirement for any of that in the UK.

Which uses are not?

Placing a tracker on another adult, or on their vehicle or belongings, without their knowledge can be a criminal offence.

Covert tracking of a person has been prosecuted in the UK under harassment and stalking legislation, and it is treated seriously where there is a pattern of behaviour causing alarm or distress. It can also engage data protection duties, because a covert record of somebody's movements is personal data about them.

The examples that come up most often, and the honest answer to each:

• A partner's or ex-partner's car. Not lawful without consent, and a recognised feature of coercive control.
• An employee's own vehicle. Not without a clear, communicated policy and a lawful basis; the Information Commissioner's Office guidance on monitoring workers is the starting point, and this is an employer obligation rather than an individual one.
• An adult relative's belongings, where they have capacity and have not agreed.
• A car you jointly own but which another adult drives. Joint ownership of the asset is not consent from the person, and this is the grey area that causes the most trouble.

How do unwanted tracking alerts work?

Modern phones warn a person that an unfamiliar tag is travelling with them, and can make that tag play a sound.

This is a cross-industry standard rather than a single manufacturer's feature, and certified third-party tags are covered by it as well as Apple's own. In practice: if an unknown tag moves with someone over time and away from its owner, their phone raises an alert, they can make it ring, and they can read instructions for disabling it.

Two consequences follow. Covert tracking of a person is much harder than it was, by design. And a tag legitimately shared between family members should be shared in the app — from iOS 17 onwards items can be shared with up to five people — so that nobody gets an alarming notification about a device they already knew about.

What should you do if you find a tag that is not yours?

Do not assume malice, but do not ignore it either.

1. Follow your phone's instructions to make the tag play a sound and locate it.
2. Check the obvious innocent explanations — a hire car, a borrowed bag, a delivery, a family member's tag on a shared item.
3. If it is genuinely unexplained, keep the tag rather than destroying it. It carries a serial number that police can act on.
4. Report it to the police on 101, and to 999 if you feel in immediate danger.

Which specifications matter for this?

A tag's physical characteristics are what determine whether it can be found, so they are worth knowing.

A tag that can be made to ring at 80–100 dB is a tag that a person can find on themselves, which is precisely the point of the alert standard.

How Beacon Tag is designed for lawful use

Everything about a Beacon Tag assumes it is attached to an object with the owner's knowledge. It is MFi certified, so it participates fully in Apple's unwanted-tracking protections rather than slipping around them. Its location data is encrypted end to end, readable only by the Apple Account it is paired to — not by us, not by the manufacturer, and not by anyone who happens to walk past it.

Items can be shared with family from iOS 17 onwards, which is the right way to handle a bag, a car or a set of keys that more than one person uses: everybody involved can ring it, and nobody gets an alert about a device they were not told about.

The practical specification is in the table above. Boxes hold two tags at under £15, dispatched from UK stock, with 30 days to return them.

See the two-pack, or read the full list of questions we get asked.

If the question behind your search was about an older relative rather than a possession, that needs a different kind of device and we say so plainly.