GSM model, Dual standby, CPU: MediaTek MT6753, Display Diagonal: 5.3 ", Display Resolution: 720 x 1280, RAM capacity: 1.5 GiB, ROM capacity: 14.9 GiB, Expansion Slots: microSD, microSDHC, TransFlash.</br>Unlocked cell phones are compatible with GSM carriers such as AT&T and T-Mobile, but are not compatible with CDMA carriers such as Verizon and Sprint.</br>Please check if your GSM cellular carrier supports the bands for this model before purchasing, LTE may not be available in the US as this is the international model: GSM850, GSM900, GSM1800, GSM1900, UMTS850 (B5), UMTS900 (B8), UMTS1900 (B2), UMTS2100 (B1), LTE2100 (B1), LTE1800 (B3), LTE2600 (B7), LTE900 (B8), LTE700 (B28). Secondary Cellular Networks:	GSM850, GSM900, GSM1800, GSM1900.</br>This device may not include a US warranty as some manufacturers do not honor warranties for international items Please contact the seller for specific warranty information.</br>The box contains: Your new device, USB cable, Charger (may be foreign) If so, a FREE US adapter will be included, Documentation.</br></br>Product Description</br></br>CPU: MediaTek MT6753, Display Diagonal: 5.3 &#34, Display Resolution: 720 x 1280, RAM capacity: 1.5 GiB, ROM capacity: 14.9 GiB, Expansion Slots: microSD, microSDHC, TransFlash.Carrier: U+ LTEDevice has a slot for a SIM card and a MicroSD memory card.Network Type: GSM<br><br></br><br/>http://www.amazon.com/gp/product/B01DIYRU2U