The VAIO Duo 11 SVD11223CXB has a better Wi-Fi standard than most 2 in 1 laptops that have been around for more than two years. This Sony laptop has an 802.11a WiFi standard, whereas most laptops of a comparable spec and age to it have an 802.11n WiFi standard. In addition, this notebook PC have an 802.11b and 802.11g WiFi standard.
An 802.11a WiFi standard is in fact the worst Wi-Fi standard amongst all similar spec notebook PCs that came out more than two years ago.
Amongst similar types of notebook PC the best Wi-Fi standard is 802.11n.