Dual Nano-SIM (4G + 3G) ; 4G LTE & 3G work with AT&T and T-Mobile ; DOES NOT work with Sprint, Verizon, U.S. Cellular and all other CDMA carriers ; LTE compatibility: This is international stock, varies per carrier (ensure to check with your carrier before purchase) Exynos 8895 Octa-core (2.3GHz Quad + 1.7GHz Quad), 64-bit, 10nm CPU ; 64GB ROM, 6GB RAM ; Supports microSD, up to 256 GB (uses SIM 2 slot) ; 3300 mAh battery. Main Camera: Dual 12 MP (26mm, f/1.7, PDAF & 52mm, f/2.4, AF), OIS, autofocus, 2x optical zoom, dual-LED (dual tone) flash; Front Camera: 8 MP, f/1.7, autofocus, 1/3.6" sensor size, 1.22 µm pixel size, 1440p@30fps, dual video call, Auto HDR.

This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty, and may arrive in a generic box. Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon.com LED-backlit 4" screen 8 megapixel dual-tone flash camera