The Latitude 14 E7440 has a better Wi-Fi standard than most notebook PCs of a similar type and age to it. This notebook PC has an 802.11n wi-Fi standards, whereas most ultrabooks that have been around for a comparable time to it have an 802.11g wi-Fi standards. This portable PC also have 802.11a and 802.11ac and 802.11b wi-Fi standardss.
An 802.11n wi-Fi standards is actually the best Wi-Fi standard amongst all ultrabooks that were launched more than two years ago.
Amongst comparable types of portable PC the worst Wi-Fi standard is 802.11a.