How does an AirTag tracker work?
At the airport, fast information is what counts: is your suitcase already on the belt, still in transit, or stuck at the transfer point. Luggage trackers work in two ways, and each has its strengths. In the Bluetooth/UWB version, nearby phones “spot” the transmitter in your bag and refresh its position, which in crowded terminals means frequent updates and the ability to home in precisely on your suitcase from a few metres away.
In the GPS and eSIM/SIM version, the transmitter sends its coordinates itself over the mobile network, so you can see your bag moving even beyond the airport — between terminals, in ground transport, and even on the way to your hotel; this does, however, require data, especially outside the EU.
In practice this means that during a connection a Bluetooth/UWB tracker will quickly show that your suitcase has appeared at the belt in the new airport, while GPS will tell you whether the bag has actually left the previous one. During pickup, UWB helps you find the right piece on the belt without wandering around. And if a delay or a misrouted transfer occurs, GPS gives you a clear signal that your bag is in another city.
What to do before departure?
- Pair the device with the app and give your bag a name.
- Check the battery/charge and turn on alerts.
- For GPS, make sure data transmission works in your destination country.
- Test it out: put the suitcase in your car and check the position update.
How to set up and add a suitcase tracker to your phone?
Start with the manufacturer’s app on your phone. Turn on Bluetooth, add the AirTag tracker in the app, give it a name (e.g. “Suitcase – checked”) and enable the basic alerts: notifications about the bag appearing on the belt, a change of location, and a low battery. If you are travelling with family, share the position from the app with selected people — they see exactly what you see, without logging into your account.
Before departure, make sure everything is compatible with your phone. Check the system version (iOS/Android), grant the app the required permissions (Bluetooth, location, notifications), and for GPS trackers additionally confirm that the data plan is active and that there is coverage in your destination country. It is also worth turning off battery-saving modes for the app, as they limit background activity — that way notifications arrive on time.
Quick step-by-step guide:
1. Install the app and create an account.
2. Turn on Bluetooth, add the device, name the bag.
3. Enable alerts and location sharing (if needed).
4. Check the battery/charge the tracker; for GPS, activate the eSIM/SIM.
If something doesn’t work: check whether Bluetooth and location are on, whether the app has permissions, restart your phone, and for GPS confirm active data transmission and coverage. This initial setup takes a few minutes and saves you stress at check-in and during connections.
And what do the rules say about luggage trackers?
Under the latest ICAO amendment, carrying trackers in the checked-baggage hold is formally permitted, provided they meet the battery limits: a lithium content of up to 0.3 g and energy of up to 2.7 Wh. The device should be protected from damage (a sealed casing, no loose wires). This puts an end to the earlier discrepancies between airlines — today an AirTag, SmartTag and similar Bluetooth trackers (Tile, Chipolo, eufy, Pebblebee) can be placed in checked baggage, as long as they fall within these parameters.
More substantial power sources are subject to stricter rules. For larger lithium batteries (up to 2 g of lithium), the device must be switched off completely — it cannot be in sleep or hibernation mode. For safety reasons, such batteries should be carried in hand luggage. In practice, many airlines also apply a general standard: trackers with lithium-ion batteries ≤100 Wh are usually allowed in checked baggage, while above that threshold the device must be declared and kept in the cabin.
A GPS luggage tracker itself poses no threat to onboard systems — it receives a signal from satellites and does not actively transmit. During the flight, airplane mode applies to your phone and other mobile devices, because it is they that emit radio waves. Then, after landing, the app resumes updates and refreshes the bag’s position.
When does a suitcase tracker save your trip?
Certain situations at the airport call for a quick decision — a tracker gives you a clear picture: where your bag is and what to do next. Here are the moments when it can genuinely save your trip.
- A short connection – you can see whether your suitcase “left” the previous plane and whether it “appeared” on the belt at the transit airport.
- A misrouted transfer – the app shows that your bag has flown to another city. You have hard evidence for the “Lost & Found” desk, you file a PIR report faster and arrange delivery to the address you specify.
- Disappearance from the belt – UWB guides you to the specific piece amid a crowd of similar suitcases. There’s a lower risk of a mistake or another passenger “swapping” bags.
- Travelling with children or in a group – you share the location with your loved ones.
- Claims and insurance – the location history is additional evidence in a case of delay or loss.
The AirTag tracker in practice – peace of mind during connections and baggage pickup
An AirTag in your suitcase gives you the two things that matter most at the airport: information and time. As a result, you make decisions faster during a connection, at the belt, or when filing a claim. Before your next flight, run a quick check: pair the device with the app, name the bag, turn on alerts, check the battery/charge, and for GPS confirm that data transmission works in your destination country. That’s all it takes to get through your trip more calmly at the critical moments.
