Unlocked S3- what no contract plan to use

[Bellinghamster]

I am thinking about buying a unlocked Galaxy s3 unlocked here:

Amazon.com: Samsung Galaxy S III/S3 GT-I9300 Factory Unlocked Phone - International Version (Pebble Blue): Cell Phones & Accessories

Cheapest price for a factory unlocked phone from a trustworthy place i have found

My question was which no contract plan should i use?
Would this phone work on any network?
The providers i had in mind for no contract plans were Metro PCS and Straight Talk, was leaning more towards Metro PCS for the $40 a month unlimited everything 4g Lte plan.

Very new to this, thank you in advance for any information

 

[scooter1942]

from what ive read, the int'l GSIII only seems to work on AT&T's network. its a shame, really...

 

[Carolina Media]

You can only use GSM networks: AT&T and T-Mobile

It won't get 3G/4G data on T-Mobile due to incompatible frequencies, so AT&T is really your only option from a major carrier.

You could order an AT&T compatible Straightalk sim card from the straightalk website. It uses AT&T towers and it's only $45 per month no contract.

 

[Bellinghamster]

Sucks that they cant make a phone to work on any network, so you could switch between

 

[scrabbley]

Sucks that they cant make a phone to work on any network, so you could switch between

They do in most places, just not the US apparently. I got an unbranded phone even though I'm on a contract with Vodafone, and I can stick any sim card in and it'll work fine. I never understood why US phones were always so different and had different versions for the different carriers but I think I understand a little more now about the systems they use, from reading around the forums. I still can't get over how expensive they are though!!