Which Samsung Galaxy S III for TMO prepaid 4G?

I would go for the Tmobile T999L version, I will list the reasons.

If you only want to use it on tmobile unlocked is not a problem.
2 the tmobile version has all tmobile frequencies so you wont need to screw with the phone to get the best speeds.
3 The T999L has LTE and while you say you dont need it if you plan on keeping the phone for more then 6 months LTE could be in your area and why not take advantage of it.
3 The international version wont have tmo frequencies.
The tmobile version can be found in 2 versions the LTE and no LTE the price will be similar depending on where you buy it just.

oh and as a side note you can unlock it if you want there is a simple free way to do so on xda forum.

 

What about the sgh 1747? (At&t version).

On xda they're working on getting the aws band working to use hspa+ on non refarmed areas.

Its also at a better price (for me at least).

 

That is what I bought.

I was/am working on it but as it stands the nv backup method (the better method because it allows new modem and roms) wont stick on a reboot.

Something is injecting the old att values in during the boot process.

The old working method involves using the engineering test modem which is an ics modem Now I have that modem on the phone and using a new rom but its got little idiosyncrasies which can be difficult for a person not familiar with android.

 

The M919 is the Tmobile version of the S4 so be best to get that. With an I9505 you wouldn't get LTE

 

Does the international version even have 1700 hspa?

I will google it but thought that question might be best asked here as well.

 

Nope only 1900

 

1700 is a frequency not really used overseas. It seems to be used mainly in the US and Canada. So if you want one that supports it, international devices usually aren't the way to go.

 

It's cause T-Mobile is the oddball. They just HAD to use 1700 instead of 1900. Lol thank god for the refarm project.

 

I do like that the speeds they are able to achieve using the 1700/2100 is way better then you can get on the 1900 alone.

From my understanding there is no way to run hspa + 42 without using 2 frequencies

 

Its cause there's wasn't enough other spectrum, they wouldn't even had been able to launch 3G to over 80% of their coverage area without it

 

For 42 you just have to have 10x10MHz just that they don't have that much spectrum in PCS