Which airport is the most tech savvy?
Changi Airport Singapore is one the most comfortable airports to fly through. There's no shortage of free wifi, free computer terminals, free movies, chairs to relax in, outlets to charge your devices... they've even got a movie theatre right there for you to enjoy during long layovers.
You'll not have to wait so long in any sort of queue, as they seem to monitor them and adjust personnel. Their system of calling for taxis wherever needed is pretty high tech as well.
San Francisco International Airport is really good, especially Virgin America's T2 lounge. Amazing wifi, a plethora of places to charge up w/desk-like seating, etc. Additionally, Heathrow Airport has been awesome in my experience.
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Amsterdam Schiphol Airport in The Netherlands is definitely among the most innovative airports in the world, they won many innovation awards in recent years. In 2014 for example got awarded for "baggage on demand concept", a fully automated baggage buffer that can temporarily store up to 4,200 bags and feed them in batches to six baggage robots that then load the bags into containers or carts. Schiphol has also been outstanding in applying latest innovations and technologies such as the latest NFC testing for frequent travelers.
For me savvy is also a function of how organized it is and how easily the tech is made available to travelers:
#1 : Dubai, UAE
#2 : New Delhi, IN