1 or 2? 2 or 1? We are a part of a society that is constantly bench marking, one against the other. Which is better? Most accurate? Cost Effective? User friendly? After all of the pro/con lists, we are supposed to come to a decision and choose one that is “better” than that of the other(s) for our purpose. We have done just this in choosing the best technology to use in our sensors. This brings us to the big question of GPS (Global Positioning System), BLE (Bluetooth Low Energy) or RFID (Radio Frequency Identification) for data collection?