Bluetooth Tracker Tags

Sam Vimes

Moderator
Sep 7, 2020
2,150
1,698
5,935
Occassionally someone will ask about using something like an Airtag as a security device for a caravan. Opinions in replies vary.

I've just been given a Third Party Samsung Tag to review which is the first opportunity I've had play with something like this. The device itself is just like a credit card but a bit thicker and while its marketed to fit into your wallet there's no reason why you can't use it elsewhere.

So, does it work and is it off any use. Not surpisingly that depends. I didn't want it for my caravan but I thought I might be able to use it in my camera bag which has a few grand of stuff in it I wouldn't like to lose. The most important feature I wanted was the ability to get a notification on my phone should I walk away, leaving my camera bag in a coffee shop for example - which I did once.

Is it any good at this - no. Its equally possible that other types, Airtags etc have similar problems.

Firstly it only work with Samsung phones using the SmartThings apps.
Secondly its only Bluetooth, so limited range. No inbuilt GPS
Thirdly to find where it is at a distance needs someone else with a Samsung Phone and the app nearby to the tag.
Forthly, it requires a connection to the internet - either Wifi or Mobile Data.

While the tag is ok the App is particularly lacking - whoever designed it didn't think it through properly.

I loaded the app which is the only way the phone can 'see' the tracker. Although Bluetooth it will not pair without the app. and doesn't appear in the Bluetooth device list. The app is crowded with other stuff that Samsung would like you to use to run your life and give them more money.

First test was to see if it could show on the map where the tracker was. At this point it immediately failed because the app needs access to the GPS network and indoors I get no visible satelitte signals. So its not going to work if the phone is in a building. It does however try and approximate your location using the mobile phone signals and even wifi. At this point it identified that my phone and tracker where in the middle of a Loch some 20Km away.

Second test was to walk away from the tag and see if it notified me. Another fail because I went out of the house and there's no wifi or mobile data and the only way it can tell me I'm out of range is via the internet. Rather a stupid assumption that every one always has an internet connection. Also its not hard to know when a Bluetooth device loses connection - no signal equals no connection.

I have some more tests to run out doors but its throwing it down with rain and I'm not going out it it now. So part two another day when its drier.
 
Jul 23, 2021
852
779
5,135
Interesting. The AirTag experience is quite different. I was given one a couple of years ago and was so impressed I bought a bunch extra.
As with the card you have the AirTag has no GPS - it communicates with Bluetooth-LE and NFC. But thats where the similarities seem to stop. The airtag can relay its position via any newish iPhone (anything from the last 6 years or so). These seem to be ubiquitous enough that I have tracked my Airtag in checked luggage at an airport from checkin to the plane and back via baggage reclaim.
If you go out of range, you have the option for an immediate alert, but can suppress this if the item is in a known location (like home).
You can put the item into "lost" mode to allow other to see who it belongs to, or try to track and find the item.
You can share it with others - so I can led a tag to a family member for luggage, or have my wife track my keys.
And you can put it into active find mode which uses some kind of wizardry to give you a direction indicator on your phone with an approximate distance to locate the item.

IMHO, pretty impressive stuff.
 
  • Like
Reactions: Jcloughie

Sam Vimes

Moderator
Sep 7, 2020
2,150
1,698
5,935
I think you'll find that the Apple Airtags have the same issues. If the nearby phone has no internet connection it cannot relay the location to the owners phone. Similarly if it cannot get a location fix. Also only good on Apple devices.

There are a number of free apps that allow you to find the Smart tag I have in a kind of hot/cold game. The Samsung app also does this but none have gone that step further to give a notification that the signal is totally out of range. Well none that I've found yet.
 
Jul 23, 2021
852
779
5,135
I think you'll find that the Apple Airtags have the same issues. If the nearby phone has no internet connection it cannot relay the location to the owners phone. Similarly if it cannot get a location fix. Also only good on Apple devices.

There are a number of free apps that allow you to find the Smart tag I have in a kind of hot/cold game. The Samsung app also does this but none have gone that step further to give a notification that the signal is totally out of range. Well none that I've found yet.
On the 1st part - absolutely true. They have no location or internet connection of their own. But they only cost £20 and have no subscription - so you get what you pay for. But there is no requirement that the apple phone in local proximity uses any app - it's part of the OS, and - unless you explicitly lock it down - an iPhone will periodically update its own location. I am not sure of the population of iPhone vs Android (I am sure it varies by geography), but so far, the air tag system has proven both accurate and up to date in terms of the time delay on the location of any of my tags.
 
  • Like
Reactions: Jcloughie
Jun 16, 2020
5,254
2,267
11,935
I agree with Tobes, my experience with AirTags is very good. Clearly they have limitations, but Apple do not try to say differently. For locating lost property they work a treat. But I have no doubt they will be less effective in a sparsely populated area. Could be that the Samsung devices are not as good.

John
 

TRENDING THREADS

Latest posts