Nokia Lumia 1520 Review: Nokia's Lumia 1520 combines a great screen with continually developing software, but there's plenty of room for improvement - Mobile Phones - Smart Phones - Good Gear Guide
Nokia Lumia 1520 (Windows Phone 8.1) review - All About Windows Phone
Nokia Lumia 735 review: Just don't call it a selfie phone - Poc
Nokia Lumia 1520 Preview - PhoneArena
Nokia Lumia 1520 (Windows Phone 8.1) review - All About Windows Phone