The Xiaomi Redmi Note 4 features a 5.5-inch screen 2.5D curved glass with a FHD resolution of 1080 pixels by 1920 pixels.
On the front, Redmi Note 4 used 2.5D curved screen. Used the advanced screen lightness management technology,Redmi Note 4 can adjust the lightness according the different using environments smartly,no matter in daytime or at night. There is an MIC, infrared emitter and a 3.5mm headphone jack on the top.The bottom has a standard Micro-USB port and a microphone.
On the back, The Xiaomi Redmi Note 4’s unibody design means the battery is not removable. Redmi Note 4 retains the premium full metal unibody construction that was introduced with its predecessor, but now comes with a brushed metal finish and chamfered edges that looks and feels even better. Redmi Note 4 also coming with a fingerprint sensor on the back.
The Xiaomi Redmi Note 4 features a 5.5-inch HD (1920×1080 pixels) display and packs an deca core Helio X20 processor 64bit, with 2.1GHz frequency. The handset includes 2GB/3GB RAM, Mali T880 MP4 700MHz GPU, as well as 16/64GB of inbuilt storage that’s expandable via microSD card (up to 128GB).
Redmi Note 4 packs a 4100mAh non-removable battery, a highlight of the device. Redmi Note 4 support 5V / 2A fast charge.
On the camera , the Redmi Note 4 sports 5.0MP and 13.0MP rear camera with LED flash, f/ 2.0 aperture, PDAF auto focus, and also supports 1080p full-HD video recording. DEmbedded with photo filter software in 9 styles,and 59 art stickers ,you can edit and decorate your lovely pictures easily. There is a 5-megapixel front-facing camera which supports selfie beauty.
The dual-SIM Redmi Note 4 comes with hybrid SIM slot that support one Nano-SIM and other Micro-SIM alongside microSD card.
The Xiaomi Redmi Note 4 runs on MIUI 8, which utilizes an Android 6.0 Marshmallow core. MIUI 8 has some interesting new features such as the ability to enter either a standard or private user mode depending upon the password/PIN/pattern you enter similar to a KNOX secure folder.