Xiaomi Redmi 3S Prime smartphone was launched in August 2016. . Xiaomi Redmi 3S Prime price in India starts from Rs. 8, 999. The Xiaomi Redmi 3S Prime is powered by 1.1GHz octa-core Qualcomm Snapdragon 430 processor and it comes with 3GB of RAM.Redmi 3S Prime unlocks at the slightest touch. Lightly tap your finger on the sensor and its priced at Rs 8, 999, it can be purchased exclusively from Flipkart .etc.