Samsung SGH-T989 Galaxy S II 16GB T-Mobile Smartphone SEE COVERAGE MAP. IMPORTANT: Please make sure that T-Mobile offers acceptable service in your area. Refunds cannot be given for inserted cards! Official Straight Talk Micro Size SIM for use on T-mobile's network. Please make sure your phone takes a MICRO size SIM. No Contracts. Port your number. Compatible w/ T-Mobile & Unlocked GSM iPhone 4, 4S, Galaxy S3, S4, Note II, LG Nexus 4, HTC One & S, Droid Razr Maxx. Please Note: You are only getting a SIM card. It is your responsibility to verify if this SIM card will work with your phone. For use with Straight Talk $45/month Unlimited Everything (Talk, Text, & Data) using T-Mobile's network. $45 per month for Unlimited Data, Talk & Text! No Service is included with this purchase. $45 Straight Talk Unlimited 30-Day Service Plan sold separately. To activate your service, you will need a Straight Talk Unlimited 30-day Service Plan card or credit card. Some data services may not be available with all wireless devices. BlackBerry and branded TracFone, SafeLink, NET10 or Straight Talk phones will not work with this program.