Optimization always brings surprises. Hard to believe that the new Redmi 3S is equipped with a high performance processor Qualcomm Snapdragon 430, 4100mAh battery with a greater capacity, attractive all-metal casing, 13Mp camera with support of phase focusing. Even more impressive is the fact that although its thickness is less than the previous generation of smartphones just at 0.9mm, 5-inch Redmi 3S is very comfortable in hand and is pleasant to the

The xiaomi redmi 3S/3S Pro features a 5.00-inch capacitive screen display with a resolution of 720 pixels by 1280 pixels.

On the front, the screen is with curved edges. There are three capacitive buttons at the bottom and a motion sensor at the top, as well as speakers and a front camera. The edges around the screen are protected by a plastic edge.

On the back, The xiaomi redmi 3S/3S Pro's unibody design means the battery is not removable the same as xiaomi redmi 3 with an aluminum back.

Hardware Overview

The Xiaomi Redmi 3S/3S Pro features a 5-inch HD (720x1280 pixels) display and packs an octa-core Qualcomm Snapdragon 430 processor, with four cores clocked at 1.4GHz, and four cores at 1.1GHz. The handset includes 2GB/3GB of LPDDR3 RAM, Adreno 505 GPU, as well as 16GB/32GB of inbuilt storage that's expandable via microSD card (up to 128GB).

Much like the Redmi 3/3Pro, the Redmi 3S/3S Pro also packs a 4100mAh non-removable battery, a highlight of the device. Different with Redmi 3/3 Pro, the Redmi 3S/3S pro support QC3.0 quick charge.

On the camera , the Redmi 3S/3S Pro sports a 13-megapixel rear camera with LED flash, f/ 2.0 aperture, PDAF autofocus, and also supports 1080p full-HD video recording. There is a 5-megapixel front-facing camera as well which also supports full-HD recording. The dual-SIM Redmi 3S/3S Pro comes with hybrid SIM slot that support one Micro-SIM and other Nano-SIM alongside microSD card.

Software Overview

The Xiaomi Redmi 3S/3S Pro runs on MIUI 7, which utilizes an Android 6.0 core. MIUI 7 brings its take at the interface and improves on its performance. According to Xiaomi's change log, MIUI 7 is 30% faster and more responsive and 10% more energy efficient. It also adds a few new things as a baby album, child mode, new default themes and auto DND option.