Since you are already on StarHub and you are traveling alone, just get their DataTravel Asia-Pac. http://www.starhub.com/personal/mob...g/postpaid-roaming/data-plans/datatravel.html. Changi's wifi router costs $5 a day. For this you can get on StarHub's 3GB for $20 over 30 days. This can cover your subsequent trip within the 30 days.
Starhub DataTravel Asia-Pac.
1GB for $5 over 3 days
2GB for $15 over 30 days
3GB for $20 over 30 days
if u add 3 times is 3GB for $15 for 9 days ...
