The Xiaomi Redmi 3X smartphone is quite identical to Redmi 3S. The difference between them is that Redmi 3X comes only in 2GB RAM model while Redmi 3S has a 3 GB RAM model along with 2GB RAM version.
The Redmi 3X measures 139.7 x 69.7 x 8.5mm and weighs 146 grams, whereas the Redmi 3S measures 139.3 x 69.6 x 8.5mm and weighs 144 grams.
There are no other differences between these two devices. Like the 3S, the Redmi 3X offers a 5-inch HD (720 x 1280 pixels) IPS display and is powered by an octa-core Qualcomm Snapdragon 430 (4 x 1.2 GHz Cortex A53 + 4 x 1.5 GHz Cortex A53) 64-bit processor. It has Adreno 505 GPU and 2GB. The hybrid dual SIM based smartphone runs on Android Lollipop based MIUI 7 operating and has a 4100 mAh battery. It has full metal unibody design and also houses a fingerprint sensor located at the back.
The Xiaomi Redmi 3X comes with 32GB of internal storage, which is further expandable by up-to 128GB via a micro SD card. The smartphone boasts a 13-megapixel autofocus rear camera with LED flash, PDAF and a 5-megapixel front camera. On the connectivity front, the device offers 4G, Bluetooth 4.1, WiFi (802.11 b/g/n), GPS with AGS/GLONASS and Micro-USB 2.0.