Suggestion about fastest internet surfing mobile

[realistic]

Hi,

I am using broadband in my home, but I won't be always in home, so I feel that unlimited broadband is waste of money, since I am working in Call center, so I am thinking on disconnecting my Broadband and get a Fastest Internet Browsing mobile and use mobile provided Internet facility through any one of the operator at my city.

Need your valuable suggestion for fastest internet browsing mobile, I need to connect it with my system and browse and also I need to browse it on mobile on the way I travel out.

Plz help me to get a best mobile for Fast Internet Browsing.