Short answer: no. AirTags transmit on Bluetooth Low Energy at 2.4 GHz; a quality Faraday bag fully attenuates that signal. Inside the bag, the AirTag is invisible to Apple's Find My network. The location report stops the moment the device enters the bag and resumes the moment it leaves. We tested every common consumer Faraday product against multiple AirTag generations to confirm.
AirTags transmit on Bluetooth Low Energy (BLE) at 2.4 GHz and rely on nearby Apple devices in the Find My network to relay their location. Inside any quality Faraday bag — including any of the three REVIS-1 chambers — the BLE signal is fully attenuated (76–85 dB blocking) and the AirTag becomes invisible to the Find My network. Tile, Samsung SmartTags, and Chinese white-label BLE trackers all use the same underlying radio technology and are blocked simultaneously.
Faraday isolation is the only consumer-side defense that does not depend on Apple's continued investment in stalker detection. iOS detection alerts work after 8–24 hours of co-movement and only on iPhones; tamper-evident chirping can be physically disabled on Gen-2 AirTags. The radio is the same on every variant — and the radio is what Faraday blocks.
This article covers what we tested, the test methodology, and the practical workflow for handling a found stalker AirTag — including why putting it in a Faraday bag is usually the right immediate response, before contacting police or removing the battery.
We tested the four most common BLE trackers in 2026 against the REVIS-1 (76–85 dB across 30 MHz – 10 GHz). Each was placed inside chamber 2 (tablet+phone), bag closed, and observed for 30 minutes from a paired-account Find My / equivalent app.
| Tracker | Frequency | Find-My Network | Result |
|---|---|---|---|
| Apple AirTag (Gen 1) | BLE 2.4 GHz | Apple Find My | Blocked ✓ |
| Apple AirTag (Gen 2) | BLE 2.4 GHz + UWB ranging | Apple Find My | Blocked ✓ |
| Samsung SmartTag (2024) | BLE 2.4 GHz | Samsung SmartThings | Blocked ✓ |
| Tile Pro | BLE 2.4 GHz | Tile network | Blocked ✓ |
None of the four trackers reported a current location while inside the bag. After 30 minutes, all four resumed reporting within 60–90 seconds of leaving the bag — same Find My network, same paired account, no reset or re-pairing needed.
We also tested an XSF NFC/BLE white-label tracker from a generic Chinese supplier (the type frequently used in low-budget stalking incidents and corporate espionage) and the result was identical: no location reported while inside the bag, normal reporting resumed on exit.
You received an iOS or Android tracker alert. You searched your bag, coat, vehicle wheel-well, and found an unfamiliar AirTag. The next 60 minutes matter. Here is the recommended response, in order.
Severs the connection to Find My instantly. The watcher's last reported location is wherever you found the AirTag — they cannot follow you in real time anymore. Faraday isolation does not alert the watcher that the device has been tampered with (unlike battery removal, which signals the AirTag has been stopped).
Photograph it from several angles, record the AirTag's serial number (visible when you tap it with an NFC-enabled phone), note where you found it (item, location, time). This documentation is what police and prosecutors need to file charges. Do this BEFORE you remove the battery — once removed, the NFC link breaks.
Either platform will pull the AirTag's serial number plus the last 4 digits of the registered Apple ID phone number. This is identifying information Apple is legally required to release to law enforcement on subpoena. Save the screen as a screenshot.
Stalking via AirTag is illegal in every U.S. state. Bring photos, NFC-pulled serial number, and your iOS / Android tracker-alert screenshots. Apple cooperates with law enforcement on subpoena to identify the registered Apple ID. Depending on jurisdiction, the police may suggest contacting an attorney or domestic-violence advocacy organization.
Two competing considerations. Removing the battery (or destroying the AirTag) ends transmission permanently — but signals to the stalker that you found it. Keeping it Faraday-isolated maintains plausible deniability and gives police time to investigate before the stalker knows. Discuss with police or a DV advocate; the right answer depends on the specific situation.
U.S. National Network to End Domestic Violence and equivalent U.K. and Canadian organizations recommend Faraday bags as a baseline defensive measure for clients leaving controlling relationships. The REVIS-1 covers AirTag stalking, stalkerware exfiltration, IMSI-catcher surveillance, and key-fob relay attacks in one product. Bulk-pricing inquiries for nonprofit and pro-bono distribution programs welcome — contact our B2B team.
Privacy & Anti-Tracking Pillar Acquire — $129iOS Tracker Notifications fire after 8–24 hours of co-movement, depending on iOS version and travel pattern. For a stalker who only needs to know where you go on a single day (a court appointment, a job interview, a meeting with an attorney), the 8-hour delay is enough.
Android 6.0+ has built-in unknown-tracker alerts since late 2023, but coverage varies by manufacturer and Android version. Older Android phones rely on Apple's Tracker Detect app, which only scans on demand. Mixed-platform households (iPhone parent, Android child) have detection gaps.
Apple added a tamper-evident chirp to AirTags so a tracked person hears it after a delay. Gen-2 AirTags can be physically disabled by stalkers — speakers covered, removed, or modified. The chirp is no longer reliable on the latest hardware. Faraday isolation is the radio-layer defense that does not depend on detection working.