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19 May 2018
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Xiaomi Redmi Note 4

Xiaomi Redmi Note 4

Xiaomi Redmi Note 4 smartphone has been launched in India in three variants, with the price starting at Rs. 9,999. The new Xiaomi smartphone will be exclusively available in India on Flipkart, along with Xiaomi Redmi Note 4 will go on sale in the country starting 12 pm on January 23 on the two e-commerce websites. In India, the company has introduced the smartphone in Gold, Grey, and Silver color variants, with a brand new Matte Black color variant coming soon.

The Xiaomi Redmi Note 4 is powered by 2GHz octa-core Qualcomm Snapdragon 625 processor and it comes with 4GB of RAM. The phone packs 64GB of internal storage that can be expanded up to 128GB via a microSD card. As far as the cameras are concerned, the Xiaomi Redmi Note 4 packs a 13-megapixel primary camera on the rear and a 5-megapixel front shooter for selfies.

The Xiaomi Redmi Note 4 runs Android 6.0 and is powered by a 4100mAh nonremovable battery. It measures 151.00 x 76.00 x 8.30 (height x width x thickness) and weighs 175.00 grams.

The Xiaomi Redmi Note 4 is a dual SIM (GSM and GSM) smartphone that accepts Micro-SIM and Nano-SIM. Connectivity options include Wi-Fi, GPS, Bluetooth, Infrared, USB OTG, FM, 3G, and 4G. Sensors on the phone include a Proximity sensor, Accelerometer, Ambient light sensor and Gyroscope.


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The Redmi Note 4 will be available from Next Week onwards

The smartphone has been launched in three variants in India

The company has introduced a new Matte Black color variant


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Operating System MIUI 8 based on Android 6.0.1 Marshmallow
Display 5.5-inch 1080p (1920×1080) IPS LCD panel 
  2.5D curved glass 
  401ppi pixel density
SoC Octa-core Qualcomm Snapdragon 625 
  Eight Cortex A53 cores at 2.0GHz 
GPU Adreno 506 with Vulkan API, OpenCL 2.0, and OpenGL ES 3.1 
Storage 32GB/32GB/64GB 
  microSD slot up to 128GB
Rear camera 13MP with f/2.0 lens 
  PDAF, LED flash 
  1080p video recording
Front shooter 5MP with f/2.0 lens 
  7200 video recording
Connectivity LTE with VoLTE 
  Wi-Fi 802.11 a/b/g/n, Bluetooth 4.1, GPS, GLONASS 
  Micro-USB, 3.5mm audio jack, IR blaster
Battery 4100mAh battery 
  Fast charging (5V/2A)
Fingerprint Rear fingerprint sensor
Dimensions 151 x 76 x 8.3mm
Weight 175g
Colors Gold, Dark Grey, Matte Black

Design And Platform

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Featuring a metal unibody design, the smartphone differs from the Note 3 as it sports dual rear shooters. The device likewise comes with a fingerprint sensor at the back, just below the camera module. It runs the  MIUI 8 based on Android 6.0 Marshmallow on top. MIUI 8 comes with exciting features like currency converter, image and video editor, virus scanner.


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Dimensions 151 x 76 x 8.4 mm (5.94 x 2.99 x 0.33 in)

Weight 175 g (6.17 oz)

SIM Dual SIM (Micro-SIM/Nano-SIM, dual stand-by)


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Screen size (inches) 5.50

Touchscreen Yes

Resolution 1080×1920 pixels

Pixels per inch (PPI) 401


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Xiaomi has excelled at offering great hardware in its budget phones, and that hasn’t changed with the Redmi Note 4. The Chinese variant of the Redmi Note 4 is powered by MediaTek’s Helio X20 SoC, but as Xiaomi isn’t allowed to launch phones powered by MediaTek processors in India, the local variant is powered by a Snapdragon 625. Although the naming convention may lead one to believe that it is a downgrade from the Snapdragon 650 used in the Redmi Note 3, that isn’t the case.

Unlike the 28nm Snapdragon 650, the Snapdragon 625 is built on the 14nm node, resulting in greater energy efficiency. The mid-range chip powers through everyday tasks with ease and there wasn’t any lag or slowdown in the two weeks I’ve used the phone. The 4GB of RAM also makes a difference when multitasking.

Even though the base model of the handset comes with 2GB of RAM, it is great to see Xiaomi moving away from 16GB internal memory and instead offering 32GB as the base storage. The phone comes with the usual range of connectivity options, including dual-band Wi-Fi, Bluetooth 4.1, LTE with VoLTE, and an IR blaster that lets you control a variety of appliances.


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Designed to deliver smooth and seamless smartphone experience, the smartphone is powered by an octa-core Snapdragon 625 chipset. One can also enjoy lag-free multitasking as the chipset is paired with 3GB of RAM. Similar to the Redmi Note 3, the device comes with a host of connectivity options like 4G, Wi-Fi 802.11 a/b/g/n/ac, GPS, Bluetooth 4.2 and a microUSB 2.0 port.


Alert types Vibration; MP3, WAV ringtones

Loudspeaker Yes

3.5mm jack Yes

– 24-bit/192kHz audio

– Active noise cancellation with dedicated mic


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WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot

Bluetooth v4.2, A2DP, LE


Infrared port Yes

Radio FM radio

USB microUSB v2.0, USB On-The-Go

Xiaomi Redmi Note 4 Camera

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The Xiaomi Redmi Note 4 has a 13-megapixel primary camera capable of recording video at full-HD resolution, while the front has a 5-megapixel shooter that can record 720p video. There is also a dual-tone LED flash at the back, and autofocus uses phase detection methods.

The camera app follows the same design language and focuses on simplicity as the rest of MIUI 8. This makes it easy to quickly take pictures, but it also takes away a lot of control from you. All the important modes and settings are present, and filters can be applied quickly and conveniently, but there aren’t too many tweaks available to customize your pictures. If your camera needs are basic and you don’t want to work too hard at taking pictures, this should be fine.

One of the modes worth mentioning is ‘tilt shift’, which uses the software to produce a faux blur effect, and is also present on the Xiaomi Redmi Note 3 now. This essentially keeps a circular zone in focus depending on where you choose and blurs out the rest using software, rather than the deep focus and depth of field sensing effects that dual-camera phones or DSLRs ordinary give you. Images definitely look software-engineered but look interesting nonetheless.

Sim and OS

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The dual-SIM (Micro+Nano) Xiaomi Redmi Note 4 runs MIUI 8 based on Android 6.0 Marshmallow, and sports a 5.5-inch full-HD (1080×1920 pixels) 2.5D curved glass IPS display with a 401ppi pixel density. Powered by the Snapdragon 625 SoC, it comes with 3GB and 4GB of RAM, depending on the SKU.

Xiaomi Redmi Note 4’s rear camera bears a 13-megapixel CMOS sensor equipped with PDAF (phase detection autofocus), a f/2.0 aperture, 77-degree wide angle lens, and dual-tone LED flash. The front camera sports a 5-megapixel CMOS sensor, coupled with an 85-degree wide angle lens. Expandable storage is available on the Redmi Note 4 via a hybrid dual-SIM card configuration, supporting microSD cards (up to 128GB).

Battery Life

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The 4100mAh battery on the Redmi Note 4 is slightly larger than its predecessor, but the shift to 14nm has led to vastly increased battery life. The phone easily lasts a day on a full charge if you’re a heavy user, and more often than not, you’ll get a day and a half worth of usage out of the phone.

Xiaomi Redmi Note 4  Overall Performance

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The Xiaomi Redmi Note 4 was able to handle almost everything we threw at it, and we had no complaints with the octa-core processor. It handled heavy games with ease and we had fun playing Asphalt 8 and Dead Trigger 2 on the device. We were able to use the Redmi Note 4 over the course of a few weeks and never felt that we needed a more powerful processor. Multitasking on the Redmi Note 4 was quick, and apps launched without delay. Our test unit with 4GB of RAM had enough free memory at any given time. We noticed that 1.8GB of RAM was in use at all times, leaving us skeptical about the experience we would have had using the variant with only 2GB of RAM, which could be more popular due to its lower price.

The Redmi Note 4 is very good for media playback thanks to the excellent IPS display, and it supports high-resolution video files, including 4K ones. The speaker at the bottom is decently loud and we didn’t notice any distortion at higher volumes. Xiaomi didn’t send us a headset with this unit, so we tested audio quality through our own headphones, and were happy enough.

Xiaomi Redmi Note 4 managed an impressive 65,560 in AnTuTu and 42,690 in Quadrant, which is higher than what we got from the recently launched Lenovo P2 and Asus ZenFone 3 both featuring the same Snapdragon 625 processor. GPU performance was also good, and we saw a healthy 28fps in the T-Rex test in GFXbench, and 9,029 points in 3D Mark Ice Storm Extreme. These scores are along the lines of what we expected, but it is worth pointing out that the Redmi Note 3  with a Snapdragon 650 processor achieved better overall scores.

You can eke out two days’ worth of battery from the phone with medium usage that involves a few hours of streaming music, watching videos, and browsing the web. The one downside with the battery is that the Redmi Note 4’s fast charging is limited to 5V/2A. That’s equivalent to Quick Charge 2.0 speeds, and correspondingly the phone takes nearly two hours to fully charge.

Compare  Xiaomi Redmi Note 4 Vs Xiaomi Redmi Note 3

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Features Xiaomi Redmi Note 4 Xiaomi Redmi Note 3
Display 5.5-inch 1080p (2.5D curved glass) 5.5-inch 1080p
Processor MediaTek Helio X20 deca-core Qualcomm Snapdragon 650 hexacore
Storage 16GB/64GB 16GB/32GB
Rear Camera 13-megapixel 16-megapixel
Front Camera 5-megapixel 5-megapixel
Battery 4,100mAh 4,050mAh
Connectivity Fingerprint scanner, dual-SIM, 4G, VoLTE Fingerprint scanner, dual-SIM, 4G, VoLTE


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Camera For shutterbugs, the Redmi Note 4 comes with a 13-megapixel rear camera of aperture f/2.0, PDAF and dual tone LED flash, whereas the Redmi Note 3 has a slightly higher resolution 16-megapixel rear camera with aperture f/2.0 with PDAF and dual tone LED flash. Even though the resolution has come down on the Redmi Note 4, it appears to be quite a capable shooter, especially looking at some of the camera samples shared by Xiaomi. Up front, is a 5-megapixel selfie camera on both smartphones of aperture f/2.0 and 1080p video recording capabilities. For the record, Xiaomi had first launched a MediaTek Helio X10 version of the Redmi  Note 3 in China that had a 13-megapixel camera.

Battery, connectivity and operating system  The Redmi Note 4 is armed with a 4,100mAh battery, whereas the Redmi Note 3 has a 4,050mAh battery. We have already reviewed the Redmi Note 3 and during out usage, it had delivered a good battery life, and the same could be expected with the Redmi Note 4 too.

In terms of connectivity, both smartphones feature 4G LTE with VoLTE HD voice calling support, dual-SIM card slots, Wi-Fi 802.11ac, Bluetooth, and GPS. On the software front, the Redmi Note 4 comes with Android 6.0.1 Marshmallow-based MIUI 8, and while the Redmi Note 3 comes with Android 5.1.1 Lollipop based MIUI 7, Xiaomi has also started seeding MIUI 8 update for the smartphone.

Xiaomi has done a commendable job with the Redmi Note 4, even after the design tweaks, an addition of 2.5D curved glass, 64GB onboard storage and a slightly better MediaTek Helio X20 chipset, the pricing still remains the same as the existing Redmi Note 3. Also, while there is no word on when Xiaomi plans to bring the smartphone in India, it is unlikely that we will get the same version with MediaTek chipset.

All the Best



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