The Latitude 14 7404 has a better Wi-Fi standard than most laptops of a similar age and spec to it. This portable PC has an 802.11n wi-Fi standards, whereas most similar spec notebook PCs that are a comparable age to it have an 802.11b wi-Fi standards. In addition, this laptop have an 802.11a and 802.11g wi-Fi standards.
An 802.11n wi-Fi standards is actually the best Wi-Fi standard across all laptops that have been available for around the same time as the Latitude 14 7404.
Across similar types of laptop the worst Wi-Fi standard is 802.11a.