The DELL Latitude 12 E7240 has an 802.11n wi-Fi standards which is better than most ultrabooks that have been available for more than two years. Most ultrabooks that were released more than two years ago have an 802.11g wi-Fi standards. This DELL laptop 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 are a similar age to the Latitude 12 E7240.
Amongst comparable types of notebook PC the worst Wi-Fi standard is 802.11a.