Polaroid A4BK 4-Inch Unlocked Smartphone with No Contract, 4G HSPA+ Dual SIM GSM, Android 4.4 KitKat, Black (Retail Packaging) Why unlocked phones? Upgrade or replace broken devices without pricey contracts. The flexibility of using any network and choosing the plan you want without any commitment Network compatibility: Compatible with SIM cards from all major GSM networks including AT&T, T-Mobile, and many others. (Not compatible with CDMA networks such as Verizon and Sprint. SIM card and service plan must be purchased separately) Enjoy your favorite music, books, movies, apps and games on Google Play. Multi Languages are available, including Spanish. Designed in the US. Free customer support. One year warranty included Android OS 4.4 KitKat. Dual-Core processor. 512MB RAM. 4GB storage. Micro SD card slot (supports up to 64GB). 4.0" (480X800) IPS display. 2MP rear camera w/LED flash. GA front cam. 1400 mAh battery. 4G HSPA+(may appear as 3G on the phone). Wi-Fi 802.11 b/g/n. Bluetooth. Dual SIM support Package contents: 4" unlocked GSM smartphone. Battery. Charger. USB cable. Protective bumper. Quick start guide