The phone flaunts a large 4-inch LCD Transmissive boasting a resolution of 800 x 480p at a pixel density of 235ppi. In terms of design, the phone is similar to other Lumia devices and is available in a variety of bright colors. Nokia Lumia 430 Dual SIM runs on a mighty Quad-core 1.2GHz processor housed on Qualcomm's Snapdragon 200. The chip includes 1GB RAM and 8GB internal storage which has Windows Phone 8.1 operating system installed. You can expand storage up to a whopping 128GB by adding a microSD memory card.