Some modems are said to be 3g, but i want to ask is it the sim card or modem that enables you to browse with 3g if the network 3g service is available in your area. If i get a modem that is not specified 3g by the network operator and am using for example an Airtel sim (because Airtel 3G is available in my area) won't i get 3G service when am browsing?

just like 3g phone and non 3g phone, If you av a nokia 3310(non 3g PHONE) where there is a 3g service, will you get a 3g network on d 3310? Just like dt

like d dude ova me said, a 3g modem(HSPA) is different from a 2g modem(edge) in d sense dat d 3g modem can connect on a 3g & edge network whichever is available as at time of connection, but a 2g modem can only connect on availability of a 2g network only, which is slow compared to a 3g modem dat is fast, buy a 3g modem for beta downloading xperience

Ok thanks guys