Simply excellent. When you move away, it makes a sound, you can even take a selfie. The map showing the tracker's location is accurate. You can call it from your phone and also call your phone by pressing the tracker. I will definitely make additional purchases.

Good in every way regarding what they offer, except perhaps in terms of resistance to impacts or pressure (which is easy for either of the two to happen). The white one, in particular, has already broken quite a bit, especially on its side, without me having figured out how yet.

I've bought about 10 of them. They are very sensitive in the sense that if you drop your keys 2-3 times, their speaker starts to break (the sound doesn't play, the metal parts inside get loose, etc). I lost a key in my yard and I can't find it for an hour now because the chipolo's speaker doesn't work! The one time I needed it, it let me down. (+1 star because when I mentioned it to chipolo, they sent me a free replacement!)

The positives:
1. Sufficient range.
2. Battery life.
3. User-friendly menu.

The negatives:
1. Perhaps it doesn't have as many users as the Apple tag.

I bought a pack of 4 pieces.
The basics you need to know:
- Press on your phone to find the keys and the keychain makes a sound
- Press the keychain and the phone makes a sound.
- It notifies you if you forget your keys behind when leaving.
- It keeps the last position of the keys (before disconnecting from your phone) so you can go back and find them.

If it disconnects due to distance from the keys, press on the application that you lost the keys and supposedly if someone passes by with a similar keychain, they will receive a signal from it and show you on the map where they are. (I haven't tried this yet).

It says about 2 years of battery life. We'll see.

Bluetooth and GPS must be constantly on for it to work. So-so. 1-2 times I needed to find my keys, it didn't connect though.

The sound detection is very useful, which many other trackers do not have. I bought the 4-pack for various uses.

I bought 1 piece a year ago. Since I had never used a similar device before, I had no point of comparison. What I can say with certainty is that it has saved me to such an extent that I bought 2 more and my forgetful friends, who are also satisfied, did the same. Also, none of us who bought it have an iPhone and it works perfectly fine. Those who comment that it is only for Apple are obviously referring to the Cipolo One Spot, which is another product designed for Apple.

Small and lightweight. It has good range (how far you can be from the tracker and still be able to ring it) and a loud ringtone. The battery, unlike some competitive products, can be replaced. It is combined with a very functional and user-friendly free mobile application (Android in my case - also available for iPhone). Through the application, you can make the tracker ring to locate it, see where the tracker was approximately the last time your mobile "saw" it, and be notified if your mobile loses contact with the tracker due to a long distance (out of range alerts - for example, if you leave somewhere and take your mobile with you but forget your keys behind). Similarly, through the tracker, you can make your mobile ring to locate it (in my case, even if it is in silent mode).