Samsung 16GB Galaxy S4 - No Contract (Unlocked), Certified Refurbished, Black This Certified Refurbished product is tested and certified to look and work like new, with limited to no wear. The refurbishing process includes functionality testing, inspection, and repackaging. The product ships with all relevant accessories but does not include a headphone or SIM card, and may arrive in a generic box. This Certified Refurbished product is backed by a minimum 90-day warranty. Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon. Display: 5.0-inches, Camera: 13-MP, Processor Speed: 1.9 GHz, OS: Android 4.2 (Jelly Bean)