A comparison of Bluetooth Low Energy and other competing technologies such as ANT, Zigbee, IR, NFC, WiFi. The document highlights some of the advantages of each technology with BTLE coming out on top in most situations. Many innovative new use cases are now being made possible with the introduction of ultra low power wireless chipsets. Until recently, the only way to achieve data transfer between a sensor and client has been to use wires, or manually collect data from a logging device. Wireless technologies have been available for decades. However, they tend to use significant amounts of power and need specialized equipment to establish communications.