Thank you for recommendation

Luckily the SIII will work on Straight Talk, you just have to make sure you get the right model. You will get HSPA+ data (no 4g LTE)

1. You'll want the T-Mobile SGH-T999 or AT&T SGH-I747 or an international version (see Galaxy SIII model variants) - in otherwords, not the Verizon model
2. Get the phone unlocked if it isn't already
3. Order a micro-sim from Straight Talk
4. Change the APN settings to Straight Talk so you can use MMS & data properly