The Redmi 3S is a bit of an iPhone lookalike that's sold in familiar Gray, Silver, and Gold colors. Its body is metal, although the top and bottom parts appear to be made of aluminum-imitating plastic to solve signal reception problems. Its 5-inch IPS display runs at a 720 x 1280px resolution, while the back of the phone is graced with a fingerprint scanner – a particularly nice treat for budget-minded users.
Inside the dual-SIM handset, a Snapdragon 430 processor ticks with eight CPU cores, one pair clocked to 1.1GHz and the other at 1.4GHz. The base model sees Qualcomm's chip paired with 2GB of RAM and 16GB of expandable eMMC storage, while the "High" version, which costs $136 (899 Yuan), comes with 3GB RAM and 32GB of storage. Both variants are powered by a large 4100mAh battery, which should account for long standby times, given the frugal screen resolution and power-efficient chipset.
The Redmi 3S is equipped with a 13MP main camera with f/2.0 aperture, phase-detection auto-focus (as fast as 0.1 seconds, according to Xiaomi), HDR mode, manual controls, and a single LED flash, among other niceties. The front cam is a 5MP unit with f/2.2 aperture size and face recognition. Both cameras can record video in up to 1080p resolution.
Running on a Qualcomm platform, the Redmi 3S supports the essential connectivity standards and sensors, although network support is limited to Chinese networks and there's no NFC. The phone runs Xiaomi's MIUI 7 interface, whose many bundled app and content stores that cater to Chinese users will play a major part in how the company will profit from such a low-cost device.
While the Redmi 3S' value for money ratio might seem incredibly alluring, Xiaomi's handset is targeted towards customers in China (possibly neighboring countries, too) and won't see a global release anytime soon. Importing the phone doesn't make for a solid idea, as limited network compatibility, re-seller markups, shipping and import taxes, and lack of warranty and customer support will turn it into a poorly spent $200 (or so).
Still, it's remarkable that Xiaomi is bringing features like a metal body and fingerprint scanner to the lowest of low-priced Android smartphones that still stand up to modern standards. We expect competing manufacturers like Huawei and Meizu to follow suit in the months ahead.