Redmi 3s plus means redmi 3s prime.only one thing is different redmi 3s prime’s RAM is 3GB but redmi 3s plus’s RAM is 2GB .but we can buy redmi 3s prime from online srores.and the redmi 3s plus available on some mobile stores.i can use this phone from last 3 months.the mobile is very good because it gives no problems.it is the very best device.it gives 4100Mah battery. It gives 2 days power.and 13 MP rear and 5 MP front camera.it is capture very nice photo.the camera, battery, sounds.all is the best of this device.thanks to REDMI KISS ??