Love Your Phone? If it has a SIM Card, Keep it - Bring it with you! At Cellular Tech Stores you can keep the phone you’ve come to know and love or you can purchase one from us.  For a limited time, activate your own phone for as little as $10.  GSM iPhones including 4S. Don’t have a SIM phone?  No problem.  We carry just about all AT&T, T-Mobile, and  unlocked GSM phones on the market and even offer a number of them FREE with paid activation or when you trade in most working phones.  Restrictions apply. Offer ends soon. FREE 2-day USA and Puerto Rico Shipping available. Keep Your Phone Number - or grab a new one, it’s up to you! Keep your existing number or choose a new one at no cost, or purchase custom or vanity numbers for your lines.  We carry phones that allow 2 phone numbers on and active at the same time on a single handset.  Stop by our shop and try one now. Powered by AT&T and T-Mobile’s voice & high speed data networks Voice clarity and data quality you can trust.  Talk while you surf on most devices at blazing fast 3G and 4G speeds.  User your service nationwide and in Puerto Rico.  International calling is also included in some plans so you can stay in touch with your loved ones.   Gift Bundled phones with warranty and a month of service from $99 We carry all your favorite full-keyboard QWERTY phones, touch phones, Apple and Android phones. Trade in just about any working GSM phone toward the purchase of any phone we offer or grab a phone with warranty AND a month from just $99.00, or grab an Android phone package from $199, or a coveted iPhone package from just $199. More... At Cellular Tech Stores, Your Satisfaction is 100% Guaranteed All of our phones come with at least a 90 day warranty and a 14 return option, a 30 day exchange option.  Some phones carry up to a year warranty. Ask for details when you contact us. . Unlimited Wireless Plans Have your favorite GSM phones Unlocked, Jailbroken, Rooted, Programmed and Activated on the SIMple Mobile or H2O Unlimied plans at Cellular Tech Stores.  More... Located in the CTS Financial Services building at: Cellular Tech Stores 4406 N Milwaukee Ave Chicago, IL 60630 (773)741-6000 Fax: (773) 741-6100 E-Mail us: Info @CellularTechStores.com Welcome to Your Cellular Technology Store - Featuring your favorite phones on Unlimited Prepaid Wireless Plans (773) 741-6000