Most of the other trackers are BLE tags. They are bulky and cannot be attached to the most of tiny items everyone has. Moreover, their accuracy is bad and there is no way to verify that the item is inside the bag or 3 meters from it. Bluetooth tags have battery inside, which is either replaced after a few months when it dies, or thrown away together with a tag. GearTags are incredibly thin, battery-free, and can last for years without replacement. They’re so cheap, with 20 RFID tags costing less than one Bluetooth tag, so we can put tags on anything.