@alzhao .Yes they include a prepaid broadband SIM. You will get between maybe 4GB to 12GB (depending on what deals the telco has running) to use in 30 days.
They lock the device to the Telco hoping that you will keep renewing every 30 days at relatively high per GB cost after initial purchase ($30 for 10GB, $60 for 30GB)
I would assume that a lot of people (less knowledgeable? :slight_smile: ) do just that for convenience. It’s the old Gillette Razor marketing strategy. Others of us unlock them and then use prepaid voice/data sims when on special from any telco just for data so end up with 30-40GB for between 99 cents and $10 for 30 days. People just then toss the sim and move on to the next cheap deal.
I was talking to Marin the other day about the suitably of the Gl-mifi and Spitz for this purpose in the Australian market as most of these cheap devices are only Cat 4 devices and the Ep06-e modem supports Cat 6 and covers all the major Australian telco bands. Many people are going to mobile broadband down here because a lot of the landline services are rubbish and higher data rates can be achieved on mobile broadband and prices are slowly becoming reasonable.