No more 2G in S'pore, as i learned last year.  And there  i offered an old iPhone to SIM up but that had no SIM slot, an exclusive USA feature. So i was forced to search for WiFi.

Next month will return to S'pore and Malaysia for 2 weeks and better get some communication device to keep gf, and others, happy. 

I am not a smartphone user, currently on a 2G Samsung dinosaur, good enuf for me in T'land. 

 

Some options i see: Buy a new or 2nd hand device here in CM, probably 3G, but no SIM card for T'land.   Or buy same in S'pore with S'pore prepaid SIM, and when in Malaysia get another SIM. I presume these SIMs will let me use LINE to communicate.  

 

Anyone recommend a plan?  Also, would be best if same device could be used in USA, prepaid card.

What is your budget for a device?

 

I would probably get a ~ 5,000 baht new smartphone, http://www.siamphone.com/spec/en/huawei/y7_pro_2018.htm

 

and maybe get two AIS (SIM2Fly) or DTAC Sim Go Inter SIMs, which will roam, and give 4 GB for 8/10 days each. This would save the hassle of finding a local SIM. But if you don't mind then sort out a local SIM in each country. 

 

4 GB of data would give access to LINE of course. So for 800 baht all in you're all set.

 

http://www.ais.co.th/roaming/sim2fly/en/

 

https://www.dtac.co.th/en/gointer/

 

Finding a device which would also work in the U.S. may be more challenging.  It really depends on which provider you might use in the U.S. Ideally I might buy a phone in the U.S., which would work in the U.S., Thailand, Singapore and Malaysia.

Have ordered Moto E4+ from Lazada, arriving soon. 4990 baht.   Now i'll need to learn how to use the darn thing.  But whether i want to buy a Thai SIM card or go roaming, as suggested, will need to think on that.

Thanks for the info and links to options.