Xiaomi Redmi Note 4

OS: Android 6.0 (Marshmallow), upgradable to 7.0 (Nougat); MIUI 10

CPU: Octa-core 2.0 GHz Cortex-A53

Display: 5.5" inc

Camera: 13 MP, Single

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Xiaomi Redmi Note 4 smartphone runs on Android 6.0 (Marshmallow), upgradable to 7.0 (Nougat); MIUI 10 operating system. The phone is powered by Octa-core 2.0 GHz Cortex-A53 processor. It has 64 GB, 4 GB RAM32 GB, 3 GB RAM; 64 GB, 3 GB RAM (China only). Internal storage options which can be extended with the help of microSD, up to 256 GB (uses SIM 2 slot). The smartphone has a IPS LCD providing, Screen-to-Body Ratio of 72.7%. The smartphone is fueled with a 4100 mAh, Non-removable Li-Po. The main camera of the smartphone consists of a 13 MP, Single. The sensors include Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass , Infrared port. Connectivity features in the smartphone include Bluetooth, A-GPS, GLONASS, BDS, Wi-Fi, 3.5 mm Jack and more. The Xiaomi Redmi Note 4 are available in various colors such as Dark Gray, Gold, Black, Lake Blue (64/4GB model). It measures 151 x 76 x 8.5 mm and weighs 165 g.

Hardware and OS Xiaomi Redmi Note 4
Operating system:	Android 6.0 (Marshmallow), upgradable to 7.0 (Nougat); MIUI 10
Processor:	Octa-core 2.0 GHz Cortex-A53
Chipset:	Qualcomm MSM8953 Snapdragon 625 (14 nm)
GPU:	Adreno 506
Internal memory:	64 GB, 4 GB RAM 32 GB, 3 GB RAM; 64 GB, 3 GB RAM (China only)
External memory:	microSD, up to 256 GB (uses SIM 2 slot)
Display Xiaomi Redmi Note 4
Type:	IPS LCD
Size:	5.5" inc
Resolution:	1080 x 1920 px
Touchscreen:	capacitive touchscreen
Screen-to-Body Ratio:	72.7%
Display area:	83.4 cm²
Display aspect ratio:	16:9 (height:width)
Pixel Density:	401 PPI
Colors:	16M
Connectivity Xiaomi Redmi Note 4
2G Network:	GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network:	HSDPA 850 / 900 / 1900 / 2100
4G Network:	LTE band 1(2100), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300)
Wi-Fi:	Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct, hotspot
Network:	GSM / HSPA / LTE
SIM card:	Hybrid Dual SIM (Micro-SIM/Nano-SIM, dual stand-by)
Bluetooth:	4.1, A2DP, LE
Edge:	Yes
GPRS:	Yes
GPS:	Yes, with A-GPS, GLONASS, BDS
Speed:	HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps
USB:	microUSB 2.0, USB On-The-Go
Camera Xiaomi Redmi Note 4
Main camera:	13 MP, Single
Specs:	13 MP, f/2.0, 1.12µm, PDAF
Features:	Dual-LED dual-tone flash, panorama, HDR
Video:	1080p@30fps, 720p@120fps
Selfie camera:	5 MP, Single
Specs:	5 MP, f/2.0
Video:	1080p@30fps
Multimedia Xiaomi Redmi Note 4
3.5 mm Jack:	Yes
Radio:	FM radio
Design Xiaomi Redmi Note 4
Colors:	Dark Gray, Gold, Black, Lake Blue (64/4GB model)
Body build:	Front glass, aluminum body
Dimensions:	151 x 76 x 8.5 mm
Weight:	165 g
Battery Xiaomi Redmi Note 4
Battery capacity:	4100 mAh, Non-removable Li-Po
Other Xiaomi Redmi Note 4
Release date:	2017, January
Sensors:	Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass , Infrared port

Xiaomi Redmi Note 4 Overview

The Xiaomi Redmi Note 4 is a popular smartphone that was released in January 2017. It runs on the Android 6.0 operating system, which is upgradable to Android 7.0, and features the MIUI 10 user interface. The phone is powered by an octa-core 2.0 GHz Cortex-A53 processor and Qualcomm MSM8953 Snapdragon 625 chipset, along with an Adreno 506 GPU.

The Redmi Note 4 comes with various internal memory options, including 64GB with 4GB RAM, 32GB with 3GB RAM, and a 64GB with 3GB RAM variant available only in China. It also supports external memory expansion up to 256GB via a microSD card slot.

The phone boasts a 5.5-inch IPS LCD display with a resolution of 1080 x 1920 pixels, providing a pixel density of 401 PPI. It has a screen-to-body ratio of 72.7% and a display area of 83.4 cm2. The device supports 2G, 3G, and 4G networks, as well as Wi-Fi connectivity and Bluetooth 4.1.

In terms of camera capabilities, the Redmi Note 4 features a 13 MP main camera with features such as PDAF, dual-LED dual-tone flash, panorama, and HDR. The front-facing selfie camera is 5 MP and supports video recording at 1080p.

Other notable features of the Xiaomi Redmi Note 4 include a fingerprint sensor on the rear panel, FM radio, a 3.5mm headphone jack, and a non-removable 4100 mAh Li-Po battery.

Pros:
- Large 5.5-inch display with high resolution
- Good camera quality with PDAF and dual-LED flash
- Expandable storage option
- Long-lasting battery life
- Fingerprint sensor for added security

Cons:
- Older Android version out of the box
- Limited availability of certain memory variants
- Lack of NFC support for mobile payments