Samsung Galaxy S4 Mini -Smartphone - Black - (Certified Refurbished) Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, hotspot Bluetooth v4.0, A2DP, EDR, LE, apt-X Android OS, v4.2.2 (Jelly Bean), upgradable to v4.4.2 (KitKat) 8 GB, 1.5 GB RAM Stereo FM radio with RDS/ SGH-I257M model with no radio