While iBeacon technology is still popular, there are a few potential downsides to consider before implementing it into your business model. First, since iBeacon requires both devices to be nearby each other for communication to occur, it may not always be ideal for large venues like stadiums or convention centers. Second, BLE only supports one connection at a time, meaning multiple beacons cannot transmit information simultaneously. Finally, many older smartphones don’t support BLE and thus cannot access iBeacon services.