Speed ​​Test is a full featured tool for testing mobile devices and network speed. Speed ​​test includes upload, download and latency - for 3G and 4G / LTE and Wi-Fi. Find the best network provider in your area. Compare coverage on Sprint, T-Mobile, AT&T, and Verizon. Our mission is to create an open source communication map so that everyone in the world can enjoy the best available mobile communication.