Samsung's alternative to Apple's AirTags works well - but it also has a major limitation.Almost parallel to Apple's AirTags (here in the futurezone test), Samsung also presented a new version of its Bluetooth tracker.The Galaxy SmartTag+ makes it possible to find lost objects.To do this, you attach the device – which is built like a key fob – to the item in question.It can then be located by the smartphone either via Bluetooth Low Energy (BLE) or ultra-wideband (Ultra-Wideband - UWB).The first generation of SmartTags only got by with BLE.Power is supplied by a button cell battery (CR2032), one battery should provide power for up to one year.You can locate the tags using your smartphone if you are in the immediate vicinity.Either via augmented reality or you simply let it ring.If the tag is further away, it can also be located by other Samsung Galaxy cell phones in the vicinity.The position is then transmitted via the SmartThings app.This happens completely anonymously, so you don't get any information about the cell phone that located the tag or about its owner.A SmartTag+ measures 41 x 41 x 10 millimeters and weighs 14 grams, making it just small enough to pass as a key fob.Unlike Apple's AirTags, the Galaxy SmartTag+ itself has a hole through which you can attach it to a key ring.With the air tags, on the other hand, you need a cover – but they are smaller.Alternatively, you can simply carry the tag in your backpack or pocket.If you want to track your car, motorcycle or bicycle, you can of course stow it on the vehicles in some form.However, the latter could pose a challenge, because the SmartTag cannot be hidden really well on a bike due to its size.If you are near the tag with your cell phone and have a UWB-compatible cell phone (which they are, see below), you can search for and find the tag using augmented reality.The camera then shows the surroundings, including arrows, where the day is located.This works well in practice and above all accurately.Even down to the last centimeter, the location via augmented reality and UWB is amazingly accurate.The localization down to the last centimeter is usually not really necessary anyway, since you can simply let the day ring.The small device is capable of making a surprising amount of noise, which is why it's relatively easy to find when you're nearby.Where is the key with the Galaxy SmartTag+ hidden?Answer: In the sofa gap.Even more interesting is locating the tags over longer distances.As mentioned at the beginning, this works with third-party Galaxy cell phones that are nearby.If the SmartThings app – which is pre-installed by default on current Samsung cell phones anyway – has been set up or started once, they are already being used for the network.In practice, this means that if your key with the SmartTag+ is under the seat in some restaurant, you have to hope that a Galaxy smartphone will come by.During the test in the Vienna city area, this happens surprisingly often.On average, it took a maximum of 10 to 20 minutes during the day to locate a tag at various locations in the densely populated inner districts.The position of the tag was transmitted correctly within a maximum radius of around 10 to 25 meters.Finding it with a smartphone over the last few meters is usually not a problem, at least if it supports UWB.As expected, it takes longer if you want to find the tag again in a less densely populated area, where there is less chance of a Galaxy phone passing by.Incidentally, if there is no other cell phone in the area, the SmartThings app at least remembers the position at which the connection between your smartphone and the tag was lost.So if you lose your key while walking in the woods, there is a realistic chance that you will find it again, provided that it is not moved from there.Devices such as SmartTags can also be misused due to their functional principle.Theoretically, you can also use it to track the movement of people by giving them a tag unnoticed.Apple works around this problem by causing the AirTag to start beeping at some point when the owner's iPhone isn't nearby.The SmartTags don't do this, but at least Samsung has built a feature into the SmartThings app that allows you to look for nearby foreign tags and identify when you're being spied on.However, you will not be notified automatically at the moment.The Galaxy SmartTag+ also has a button that can be used to control other smart home devices.What the button does needs to be set in the SmartThings app.Not only devices manufactured by Samsung are supported, but also those from third-party manufacturers.For example, you can integrate your Philips Hue lighting into the SmartThings app and control it with a button during the day.That sounds reasonable in theory, but in practice I usually didn't use the button.I linked it to the lighting in the apartment, but I can control it much more conveniently using dedicated switches or language assistants.Just like the regular SmartTags, the SmartTags+ can currently only be used with Samsung Galaxy smartphones with the current SmartThings app.Other Android phones and iPhones are not supported at all.Locating via ultra wideband (UWB) or augmented reality is currently only supported by a small number of devices.These include:Samsung's Galaxy SmartTag+ is a practical gadget that can certainly save trouble in everyday life.Locating the tags using UWB works as I expect it to.And the position determination by third-party devices works better than I would have guessed.The network of Galaxy cell phones is not quite as large as that of iPhones, but in practice it is still sufficient in densely populated areas to find your item fairly quickly.It remains to be seen how long the battery really lasts.Even if the promised lifespan of one year is only half met, that's enough for my taste.The button battery used is also common and usually cheap.The biggest downside to the SmartTags+ is the limited compatibility.Basically nothing works without a Samsung cell phone.And UWB is currently only supported by a very small number of high-end smartphones, reducing the choice to a handful of phones.The Galaxy SmartTag+ is available in blue or black and costs 39 euros (RRP).A two-pack comes to 65 euros (RRP)Deals with things that you use every day.Wants to combine old with new.Likes streaming as much as his records.I prefer to take pictures on film, but mostly with my smartphone.