When I signed up, they gave me two more data-only SIMs that have 3GB every month. A few months back, Zym had an outage, and hence they compensated by giving all subscribers an additional 100GB for 90 days. So my two free SIMs have 100GB now for 90 days.
I was using the Huawei MiFi E585 which I bought 4 years ago till the battery life decided to give up on me. The battery will go flat after about an hour of usage. On top of that I am spoilt with 4G because the 3G speed is way too slow in Singapore, due to bandwidth congestion.
I wanted to get a 4G mobile wi-fi modem last year but it was still pretty expensive, but this year it seems the prices has drop quite a bit. I bought the Huawei E5372 4G Mobile Wi-Fi Modem from a reseller (romz1983) in HardwareZone Forums for S$230. If you are interested in getting it, check out the forum thread, WTS: Great MIFI sale from $90 Huawei E589 E5776 E5331 E5220 E5151 ZTE MF60 Wifi Router. He offers other models as well.
Got the Sapido MB-1132 for NT$1,790 (~S$76.83). Thanks to my relative, Andy, who got it from Guang Hua Digital Plaza in Taiwan when he was there to attend Computex 2011.
The Sapido MB-1132 was recommended by Justin Lee and I was impressed by what it can do. In a nutshell, it can:
Bought the Huawei MiFi E585 for S$185 from Amos of Hardware Zone Forums. It is a mobile router that makes use of your SIM card to connect to the Internet and the router itself supports 5 devices simultaneously.
It is similar to any 3G Modems but instead of only allowing one device (normally only computer) to use it via USB port, the MiFi allows up to 5 devices as long as the device have WiFi support which most if not all of the smartphones these days do. The MiFi is essentially a mobile router and hence it is capable of basic router functions such as DMZ, DHCP, SSID configuration, etc. You can configure those options using the router’s web-based interface (192.168.1.1) and the interface is mobile friendly as well. The E585 also comes with a MicroSD slot that you can use it as a shared storage for all the connected devices.