It comes in two variants – a 16GB version that comes with 2GB of RAM and a 32GB version that comes with 3GB of RAM, which is called the Redmi 3s Prime. The Redmi 3s is priced at Rs 6,999 while the Redmi 3s Prime costs Rs 8,999.
Apart from the differences in the RAM, internal storage and the presence of fingerprint scanner, both the Redmi 3s variants are the same. They come with a new Snapdragon 430 SoC that comes with eight Cortex A53 cores clocked at 1.4GHz. There is a 5-inch 720p display, which offers good viewing angles and decent color reproduction.
The interesting bit, however, is how much the Redmi 3s borrows from the Redmi Note 3. For instance, it has the same cameras — 13-megapixel rear and 5-megapixel front. There is also a 4,000-4,100mAh battery, which should offer even better performance than the Redmi Note 3, because of a smaller, lower resolution display.
... officially launched later this month.
Edit : Both the phones will be initially available on Mi.com and Flipkart through open sale. Redmi 3S Prime will be available starting August 9th 12 Noon onwards and Redmi 3S will be available starting from August 16th.