Do Apple AirTags work on the Underground? 

6:50 Listen, and understand. Geoff is out there. He can’t be bargained with. He can’t be reasoned with. He doesn’t feel pity, or remorse, or fear. And he absolutely will not stop, ever, until he finds his Air Tag...except maybe for a cup of tea.

A London Underground Video: Perfect Geoff doing it: Fantastic

Geoff: **I know where you are, I'm coming to find you**

Geoff!! This reminds me of a board game I played as a kid - Scotland Yard. The inspectors chasing around Mr. X on the london transport network!

Awesome combination of train and tech 👍🏽

Would have laughed if your friend attached the air tag to the train 😂

It would have been interesting to see if it works at stations without an internet connection. Apple devices may still pick up the signal from the airtag and update the location as soon as they pickuo an internet connection.

Intresting, this is useful since my phone is still lost somewhere on the overground

Apple air tags use Bluetooth only. They connect to any apple device nearby through the ‘Find My’ Network and send location data back to your phone via other devices. It was moving along with him through his devices and anyone nearby as they passed him. No Wi-fi built in.

Love the silly kids keys, great video as always Geoff!

Bank station looks very run down in this video due to upgrade works. Let’s hope the end results are worth it!

Great experiment! I wonder if offline iPhones still relay locations of AirTags they’ve found once they regain their network connection (meaning this would work even without one being on Wi-Fi). Seems like they would. It will be interesting to see how this system evolves over time, and whether vertical location (subway vs. street level) can be more accurately reflected.

You need to do the same, now that you know it works, with an Apple Air Tags on a moving train. I'd love to see if that works and whether you as an expert London Underground user could catch up to it and find it!!! That would be a better test as I think you're more likely to lose things whilst on the actual tube train. Obviously it would only be able to send updates as it got to stations s people used their iPhones there, but it'd still be a good test and great fun, no?

You could play the best ever game of Chase on the overground, underground, and tram system. I don't have an iphone but this would be worth getting one. Great video Geoff.

FYI it takes 15 minutes before an Airtag will provide its first update on the Find My network. Also it’s not technically showing it’s location, it’s reporting the location of the device that connected to it. I’m my experiments with one before attaching them to my bikes, I attached one to a service cabinet near to a dual carriageway and when it reported back the location was on the road. It wasn’t on the road but the devices in passing vehicles were. But it still provides a close enough location to then use the audio, or in the case of iPhones with a U1 chip, accurate directions to it.

This is such a superb idea - video, collaboration and product! 👍

one of the most interesting Geoff videos lately I must admit...

Fun video, and answered a question I bet we all had! In practice, when we lose things in real life we retrace our steps in our minds. You'd know if you had been to Bank, which platforms you'd used etc, or if you'd had a coffee in a cafe on Lombard Street instead. You then just go back to where you'd been cause you now know that's where your keys are. If someone has stolen your stuff, that's a different story, which is why these aren't sold as anti-theft devices.

Yesssss we got David from Frackulous on! LEGEND!

Guys, on your last point at the end of the video. You don’t get the precise pinpoint location of your lost item at first. Just approximately the whereabouts. The idea is that you move yourself with your phone to that location (which is approximate) and then when you are close enough in a range of Bluetooth then you get instructions on your phone how to locate with with a pinpoint accuracy. You could have made this a bit more interesting by hiding the keys somewhere in the station, but I know how that would have looked to other people when you would wonder around the station trying to locate something. And no, you do not need to be on the same WiFi network. You don’t need to be concerned to WiFi at all for that matter , any other means of being connected to the Internet would do the trick. You could be in Antarctica connected to a satellite Internet and it will work. Just an iDevice near by connected to the Internet is needed.

This is a better advert for AirTags than anything I’d seen up to now

Fairly key that the apple aGPS database knows the locations of the WiFi BSSIDs on the underground platforms. It’s still built from gps connected devices witnessing BSSIDs to build the lookup right?

I’ve gotta be honest, as a techie, I did not think that would work. But it did. Well done, gentlemen!! Great video 👏👏👏

Buy Apple AirTags and get Geoff as extra to get a proper location in the Tube.

Cool! I'm actually planning to go to UK to have a vacation. Greetings from USA 🇺🇸

Time stamps 0:03 Kings cross enterence 2:13 kings cross st pancras walk through to northern line 2:59 kings cross st Pancras northern line platform 5:11 Bank northern line platform 5:26 kings cross station 5:45 Bank northern line platform 6:52 kings cross st Pancras walk through to northern line 7:13 kings cross st Pancras northern line platform 7:36 northern line platform

BLE (BT Low Energy) tag support is in many, if not most, enterprise-class WiFi access-points (e.g. Aruba/HP 300-class and above). If the deployment was properly done then the access point locations are set on a map and they can triangulate between them without the need for an intermediary device like a phone -- the BLE sensing tech is already contained in the access-point.

First time watching one of your videos (found it through Reddit) - really enjoyed this!! Used to live in London and was so enamoured with the Tube, this was a nice trip down memory lane. Got yourself a new subscriber!

I believe Samsung do the same thing with their Galaxy tag, my wireless Galaxy Buds also have the feature so I can find either of them if one or both get misplaced.

I had Sherlock Holmes vibes when Geoff sussed the location of the Air Tag while at Kings Cross, that was a entertaining informative brilliant video.

I absolutely loved your video when you tested out the Apple Airtag on London Underground, this is definitely a game changer which has got endless possibilities! I shall be buying several of these at some point me thinks! I loved face mask with London Underground map on it that was really cool! 😎

Will you be telling us if you were able to track David on his way home I would be very interested as I have an idea for it thanks

general public: I'm sure this has its uses James Bond: I'm coming to get you

Leave one in the car. Very handy, I had a different device as a tracker for my car. Worked very well.

They should work as the tracking tech is Bluetooth and uwb based kinda like the tile products but even better. Sorta like how the internet works, loads of decentralised machines that form a connected whole singular web or mesh in a network

Ok RU-vid I’ll watch the video geez. Been on my feed for daaaaays.

Love it Geoff

Geoff, I have just gone to an open day of a new station in HK. A new line opens on the 27th, and this station, alongside another one I am going tomorrow for its open day, will open for passengers' service. The new line will bridge the current brown and scarlett lines on the MTR map and the whole line will be represented by the brown colour.

WiFi doesn’t have like a GPS type of thing. But it came work out where it is due to other WiFi networks around it. (The phone that is) this is how it would get the location not thanks to the WiFi alone and it wouldn’t have some location thing built into it. The WiFi would just be used for connection to the internet and it’s IP address. Just thought I would give a better information as in the video it’s making out like the WiFi has something else in it but it doesn’t.

Nice video, David is also great on camera. The lighting seemed way off in his studio bit though or was that just for me?

Brilliant video! I think that once you got to Lombard st and figured out that your keys were in the station itself, you might have been able to use UWB to find their precise location. However, I will point out one potential flaw in your methodology, though in reality I don’t think it will have made a difference - flight mode on Apple Watch does not disable Bluetooth. You might have turned it off manually off camera, though, I would understand not showing that particular nitpicky detail.

I agree about depth! If WiFi have geolocation built-in they should also provide depth info. And maybe these services can infer they are underground

David and Geoff love this video! Thanks so much guys for this

I really like your videos since the time I was in UK and now am back in India. I really enjoy watching content on Railway, I am not sure if you want to cover on railway in India, as we have largest railway network in the world and it might impress you as Britishers started railways in India, so we may have lot of common points in terms of platforms, trains, stations. For examples I closely relate Mumbai Victoria Terminals station(Now known as CST) to London Waterloo or London Paddington, structure of stations, platforms is quite similar and I really enjoyed to see that similarity whilst I was in UK. Not sure if you would love to come to India and put that kind of content in your channel 😀😀

Nice! It actually said Bank. Also first week of June and it's raining, London don't ever change. ☔️

Geoff is doing tech videos now? I like it!

Well done lads!

Very Interesting video Geoff!

Poundland used to sell one called TrackR (and unlike a lot of things in there now it was actually a quid), which does exactly the same thing, problem is very few people have TrackRs so it's not as reliable but if more people used it it would be exactly the same for so much less.

Great experiment. Now I'm definitely buying one. Everyone needs to watch this if they are considering buying one (or many)

Interesting, This can be a good thesis paper for maximizing empolyess Productivity on a construction site

Yes, it found the location, but not the altitude of the tag, so I think that’s probably going to be the next step in these, it will be able to tell you, “I’m about 10 meters underground.”

How much change did you get when sitting cross legged by a wall at Kings Cross?

Last thing to see from channel was apple product! Anyways cool video!

It did say on your phone it was at Bank, quite amazing little thing this, but as with all Apple products expensive. Enjoyed this video though, funny and informative as always.

Amazing, this video made me buy an Air tag, and yes its a really good gadget to own. I wouldn't be without it I don't know how I lived without it

Love when technology like this works long distance and people can help without knowing just because they have an iPhone because lot of people never use most the tech in a phone

It would be great if you could do the same test with tile. I have an android and I done think airtags are going to help me .

I have been using Tile for years and pretty much work the same. Only thing it doesn't have is the hyper local location but you would be able to hear it beeping anyway.

hi geoff what a brill video technology and trains in one video brilliant. i do have a question and that is what is the canon camera you use and what is the mic boom you also use as i am looking to upgrade from samsung phone camera to a canon dslr for recording please help. many thanks friend and subscriber. peter from birmingham

This is what happened couple of weeks ago. My wife flew overseas through Gatwick, I saw her off, on my way back home she phoned me from the plane taking off to say she’d lost her iPad at airport. I go home to Docklands, have a coffee then go back to Gatwick with MacBook Pro 16 signed in as her to locate it at the security gates. It showed up roughly there in the security area (not very accurately), as did my new iPhone 12 mini (purp) with me (which was providing the personal hotspot wifi to MBP). Security staff very helpful, I perched with MacBook on a security gate waiting till they weren’t so busy. I said I’d set it to ping it. They found it, I proved it was hers to their satisfaction, yet all that time no pinging occurred. Anyway, train back to Docklands again, and the very moment I walked back through the door it started pinging and also displayed a lost message my wife had made happen. Only as soon as it got into the house did it ping or do any of the ‘I’m lost’ things. Yet ‘find my…’ on the MBP kind of located it roughly, anyway, with updating sort of every half hour. Funnily, we were just talking about getting air tags few days before she flew (mainly to put on our folding bikes). I also mentioned that it might be a good idea to sign into the public wifi in such places (although was hard to tell if the multiple choices of Gatwick wifi were all free or I’d end up paying for whichever confusing option I chose, so I stayed well away from it and used my phone hotspot).

Finally somones explain how is really work

Geoff just getting a handsome tech man to help out.

Great fun, well explained and demonstrated, top knowledge Geoff

Awesome video

Always a joy watching these videos 😊

Classic! Great video. Thanks Geoff

Gotta love a good treasure hunt!

Great experiment brother

Is that Bank sign duck-taped into place?

It may have worked to precisely locate your AirTag if you have iPhones with the U1 ultra Wideband chip, so iPhone 11 or later. You have a iPhone 7 or 8 or 6s so that specific feature won't work for you.

1:23 side profile - Michael Palin. Another train buff. David could be a cousin of Gordon Ramsay - lower face 100%. I've got the Apple 'AirJordantag'. Locates Michael 24/7. 6:36 what on earth? it's stuck on the wall with frickin duct tape. Looks good.

As always superb content excellently presented. Thanks. Unique.

So now we know it works how long before the helpful team members at TfL start using it to reunite lost people with their lost property and stray partners / dependents who have become disconnected?

Geoff where can I acquire one of those fabulous masks

It'll save a long wait for lost property to sort your stuff out

So Geoff is a tech RU-vidr now? This is stiff competition for Tailpiece Tech.

Given phones have an airpressure sensor, could it not work out he was underground? Also I was speaking to expert in navigation in underground stations was saying the "dead reckoning" (working out where you are by movement when no GPS is around) is okay, but to make it really work well, airtag-like sensors need to be distributed around stations (in his application for people with vision impairments)

"3, 2, 1.. coming, ready or not!"

Very useful video

Can you please do a test on what's quicker? When travelling by Picadilly line to King's Cross, what's the quickest way to get to Euston? Victoria, Northern or walking? I have met so many pople who are saying different things.

Thanks for this. I was thinking of buying some of those tags.

*A surprise for sure, but a welcome one*

Interesting video- I like this

Next Challenge: Do the same as this but on the entire tube network and Geoff goes to find a station instead (recommended station Roding Valley)

This would have come in handy when I left my passport on a plane in Paris back in 2015...But Eurostar got me back to Blighty..another reason to travel by train!

Thorougly enjoyed this video

This has major implications for future seasons of JetLag: The Game.

Have you thought about doing a Video about the Network Rail and BTP Emergency Intervention Unit?

Great stuff - might be worth getting one!

Not a apple guy but this was a great nerdy vid nonetheless

Hmmm Samsung do a similar thing called a Smart tag if you're on the other team. Pretty sure they work via witchcraft of some sort 😂👍🏽

Really interesting, Geoff 🙂

OOh - that is interesting how the tech works, with relying on other Apple devices around to locate it!

Very interesting Geoff, another great video. Great seeing the S/B Northern line platform at Bank. That was one of the last places I worked on London Underground as a handback engineer in October 2020. I would to know what the progress is of the BSCU project (Bank Station Capacity Upgrade), as it looks like nothing has been done since I left?

I bought the belkin accessory it is £12 i think and is lot more secure than the leather one

Is this something thats maybe worthwhile having in a car as a cheap tracker incase of theft?

Interesting stuff, good works!

He did you dirty going to bonk

Would these work for something like a stolen car if they were tucked away behind the trim somewhere I wonder?