The device
| Broadcast name | Libre |
|---|---|
| Device | FreeStyle Libre sensor |
| Made by | Abbott |
| Type | Health |
| Is it a tracker? | No, not a tracking device |
Should you be concerned?
No. This is ordinary consumer hardware and it is not capable of tracking anyone. Seeing it in a scan means one is powered on within radio range, typically ten to thirty metres indoors, which routinely includes neighbouring flats and the street outside.
If it is not yours and it bothers you, check whether it appears at a consistent time of day. A device that shows up in the evening and disappears overnight belongs to a household nearby, not to you.
If it’s yours and you’ve lost it
Select it in a scan so the rest of the list drops away, then walk the room watching the signal strength. It rises as you get closer. When it stops rising, turn 90 degrees and sweep again, two passes usually put you within a metre.
Save it under My Devices and its position gets recorded every time your phone detects it, so next time the map tells you which building before you start looking.
Devices with similar names
Other broadcast names that turn up in the same kind of scan.
- What is “ReSound” on Bluetooth?, ReSound hearing aid
- What is “Phonak” on Bluetooth?, Phonak hearing aid
- What is “Quest” on Bluetooth?, Meta Quest headset or controller
- What is “Steam Deck” on Bluetooth?, Valve Steam Deck
- What is “Magic Mouse” on Bluetooth?, Apple Magic Mouse
- Last-seen map for your devices, Map tab
- How to find something you left on a train
- Full Bluetooth name lookup, the complete list
Common questions
What is Libre on my Bluetooth?
An Abbott FreeStyle Libre glucose sensor or reader. It appears in a scan whenever one is powered on within radio range.
Is it dangerous or tracking me?
No. This is ordinary consumer hardware with no tracking capability. Bluetooth carries through walls, so devices from neighbouring flats and the street outside appear routinely.
How far away can it be?
Bluetooth Low Energy typically reaches ten to thirty metres indoors and further outdoors with a clear line of sight. Walls, metal and water all reduce that considerably.