Xiaomi Redmi 3S Prime is powered by a 1.4GHz octa-core Qualcomm Snapdragon 430 processor paired with 3GB of RAM and 32GB of internal storage ( the non-prime version has 16GB of storage, with 2GB of RAM) . . Xiaomi Redmi 3S Prime sports a massive 4, 100mAh battery, which easily lasted us up to two days with moderate use.