First off, it's a palm-sized tag that has a loop built into the polymer, and it comes with a strong and secure metal clip for attaching it to your keys or luggage. No additional bits to buy, like you have to with the AirTag. Also, the loop is tough enough to survive day to day use without breaking off. Inside the tag is a super-loud, ear-splitting 130 dB beeper that is far superior to the puny 80 dB beeper in the AirTag.