Talk:Singapore/@comment-183.87.47.153-20160109063732/@comment-24682153-20160109185955

Hi. All SIMs of the three Singaporean providers work in Malaysia and Thaliand too on internatl. roaming. But like most of the times with roaming, it involves high rates. On SingTel's hiCard you'll pay $2 for a SMS and $2 per min internatl. calling in those countries. For roaming you'll need to have at least $8 on your account. For data roaming, you need to buy roaming packages (by typing *100#). For Malaysia at $5 for 100 MB on Maxis network, for Thailand at $15 for 100 MB on AIS.

Cheapest roaming option for Malaysia is the M1 card (see article above). They let you roam without surcharges in Malaysia on Celcom. You'll only need to buy a Singaporean domestic data package and activate roaming by *100*8*1#. But be aware that data roaming in Thailand is very expensive with them: $30 per MB!

So always check how much data/calls/SMS you need and make up your mind, if it's cheaper to buy a local SIM in Malaysia and very likely Thailand.