AT&T offers several LTE-compatible devices, including new AT&T 4G LTE smartphones and tablets, such as the HTC One??? X, Samsung Focus?? 2, Nokia Lumia 900, Samsung Galaxy Note???, and Pantech Element??? tablet.Faster response time.LTE technology offers lower latency, or the processing time it takes to move data through a network, such as how long it takes to start downloading a webpage or file on