ASUS ZenFone 3 (ZE520KL) vs. Xiaomi Redmi Note 4x

Phone Comparison, Reviews and Tests

Detailed comparison and review of ASUS ZenFone 3 (ZE520KL) and Xiaomi Redmi Note 4x. With our comprehensive overview, you can simply compare sizes, functions, but also other key features of both phones and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the phone that best fits your needs and expectations.

Phone Specifications Comparison

ASUS ZenFone 3 (ZE520KL) vs. Xiaomi Redmi Note 4x Comparison Chart
DESIGN AND DIMENSIONS ASUS ZenFone 3 (ZE520KL) Xiaomi Redmi Note 4x
Product Type Smartphone Smartphone
Manufacturer Model Number ZE520KL -
Form Factor Touch Touch
Height 146.87 mm 151 mm Xiaomi Redmi Note 4x has greater height than ASUS ZenFone 3 (ZE520KL).
Width 73.98 mm 76 mm Xiaomi Redmi Note 4x has greater width than ASUS ZenFone 3 (ZE520KL).
Depth 7.69 mm 8.45 mm ASUS ZenFone 3 (ZE520KL) is narrower than ASUS ZenFone 3 (ZE520KL).
Weight 144 g 165 g ASUS ZenFone 3 (ZE520KL) is lighter than ASUS ZenFone 3 (ZE520KL).
Body Colour Moon white | Gold shimmer | Black sapphire Platinum silver grey
Body Material Metal, glass Metal
Waterproof (Water-resistant) - -
SAR Value 0.938 W/kg (body), 0.278 W/kg (head) 0.674 W/kg (body), 0.724 W/kg (head)
Integrated Components FM radio -
Connector Type Headset jack - mini-phone 3.5mm
USB Type-C - 24 pin USB-C
Micro-USB - 5 pin Micro-USB Type B
Headset jack - mini-phone 3.5mm
SIM Card Type (Size) Nano SIM Micro SIM, nano SIM
SIM Card Qty Dual-SIM (SIM1 and SIM2/MicroSD slots) Dual-SIM
SIM Card Configuration Details Nano SIM + nano SIM/microSD Micro SIM + nano SIM/microSD
DISPLAY ASUS ZenFone 3 (ZE520KL) Xiaomi Redmi Note 4x
Display Type LCD display -
Display Technology Super IPS+ -
Screen Size (Display Size) 5.2" 5.5" Xiaomi Redmi Note 4x has larger screen size than ASUS ZenFone 3 (ZE520KL).
Screen Resolution (Display Resolution) 1920 x 1080 pixels 1920 x 1080 pixels Both phones have the same screen resolution.
Display Format Full HD Full HD
Pixel Density - 403 ppi
Max Brightness 600 cd/m² 450 cd/m² ASUS ZenFone 3 (ZE520KL) has better display brightness than Xiaomi Redmi Note 4x.
Contrast Ratio - 1000:1
Display Enhancement Technology Bluelight Filter for Eye Care -
Display Features ASUS Glove Touch technology, 2.5D curved glass 2.5D Glass, Eye protection mode, Colour temperature adjustment
Display Protection (Screen Protector) Fingerprint-resistant oleophobic coating, Corning Gorilla Glass (scratch resistant glass) -
PROCESSOR ASUS ZenFone 3 (ZE520KL) Xiaomi Redmi Note 4x
Processor Type (CPU) Qualcomm Snapdragon 625 Qualcomm Snapdragon 625
Clock Speed 2 GHz 2 GHz Both phones have the same clock speed.
Processor Core Qty 8-core -
64-bit Architecture Yes - ASUS ZenFone 3 (ZE520KL) has 64-bit architecture.
Graphics System (GPU) Qualcomm ADRENO 506 Qualcomm ADRENO 506
MEMORY ASUS ZenFone 3 (ZE520KL) Xiaomi Redmi Note 4x
RAM 3 GB 3 GB Both phones have the same RAM size.
Internal Memory Size (Storage Capacity) 32 GB 32 GB Both phones have the same internal memory capacity.
Supported Flash Memory Cards (Expandable Memory) microSDHC, microSDXC - up to 2 TB microSDHC, microSDXC - up to 128 GB
CAMERA ASUS ZenFone 3 (ZE520KL) Xiaomi Redmi Note 4x
MAIN CAMERA
Number of Main Cameras 1 1
Sensor Resolution 16 Megapixel 13 Megapixel ASUS ZenFone 3 (ZE520KL) has better camera resolution than Xiaomi Redmi Note 4x.
Sensor Name Sony Exmor RS IMX298 sensor -
Lens Aperture F/2.0 F/2.0 Both phones have the same camera lens aperture.
Lens Construction 6-element 5-element
Optical Image Stabiliser (OIS) 4 Stop OIS (Optical Image Stabilisation) - ASUS ZenFone 3 (ZE520KL) has optical stabilisation.
Focus Adjustment Automatic Automatic
Laser Auto Focus Yes -
Special Effects Depth of field HDR
HDR Mode Auto HDR mode -
Camera Modes Panorama, Time-lapse mode, night mode, manual mode, Real time beauty mode, super resolution mode, All Smiles mode, Mini mode Burst mode, Panorama, low-light shots
Face Recognition (Face ID) - Face recognition Xiaomi Redmi Note 4x has face detection.
Light Source Dual LED flash Dual LED flash
Video Resolutions 3840 x 2160 (4K) 1920 x 1080 (1080p), 1280 x 720 (720p), Slo-mo video 1280 x 720 (720p) at 120 fps
Camera Features (Functions) Sapphire crystal lens cover, GIF animation function, Smart Remove, Electronic Image Stabiliser (EIS), Time Rewind, Largan lens Phase Detect Auto-Focus (PDAF)
FRONT CAMERA
Number of Front Cameras 1 1
Sensor Resolution (Front) 8 Megapixel 5 Megapixel ASUS ZenFone 3 (ZE520KL) has better front camera resolution than Xiaomi Redmi Note 4x.
Lens Type (Front) - Wide-angle lens
Lens Aperture (Front) F/2.0 F/2.0 Both phones have the same front camera lens aperture.
HDR Mode (Front) Auto HDR mode -
Camera Modes (Front) Selfie panorama Real time beauty mode, Beautify with 36 smart beauty profiles
Face Recognition (Face ID) - Face recognition Xiaomi Redmi Note 4x has face detection.
Camera Features (Front) PixelMaster camera Selfie countdown
BATTERY AND CHARGING ASUS ZenFone 3 (ZE520KL) Xiaomi Redmi Note 4x
Battery Capacity (Battery Size) 2650 mAh 4100 mAh Xiaomi Redmi Note 4x has larger battery capacity than ASUS ZenFone 3 (ZE520KL).
Standby Time - 264 hours
Talk Time - 3060 minutes
Run Time Details - Talk (2G): up to 3060 min
Playback (video): up to 18 hrs
Gaming: up to 15 hrs
Standby (4G): up to 264 hrs
Playback (audio): up to 162 hrs
Reading: up to 22 hrs
CELLULAR ASUS ZenFone 3 (ZE520KL) Xiaomi Redmi Note 4x
Technology WCDMA (UMTS) / GSM CDMA2000 1X / GSM / WCDMA (UMTS) / TD-SCDMA
Mobile Broadband Generation 4G 4G Both phones have the same mobile network generation.
Operating System Android 6.0 (Marshmallow) -
User Interface ASUS ZenUI 3.0 MIUI 8
Navigation GPS, A-GPS, GLONASS, BeiDou GPS, A-GPS, GLONASS, BeiDou
COMMUNICATIONS ASUS ZenFone 3 (ZE520KL) Xiaomi Redmi Note 4x
Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, FDD-LTE, DC-HSPA+ GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE
2G Band 850 GSM, 900 GSM, 1800 GSM, 1900 GSM -
3G UMTS Band - Band 1, Band 2, Band 5, Band 8
3G UMTS Frequency - 2100, 1900, 850, 900
4G LTE Band Band 1, Band 2, Band 3, Band 5, Band 7, Band 8, Band 20 Band 1, Band 3, Band 5, Band 7, Band 38, Band 39, Band 40, Band 41
4G LTE Frequency FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD FDD 2100, FDD 1800+, FDD 850, FDD 2600, TDD 2600, TDD 1900, TDD 2300, TDD 2500
Wireless Interface Infrared (IrDA), IEEE 802.11b/g/n/ac Infrared (IrDA), IEEE 802.11b/g/n
Bluetooth Bluetooth 4.2 Bluetooth 4.2
Bluetooth Profiles - HID
Messaging Services SMS, MMS SMS, MMS
MEDIA ASUS ZenFone 3 (ZE520KL) Xiaomi Redmi Note 4x
Supported Digital Audio Standards - WAV, AAC, PCM, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), DSD, AMR-WB, AMR-NB
Supported Digital Video Standards - VC-1, XviD, MPEG-4, H.264, M4V, HEVC, H.265, ASP
FEATURES ASUS ZenFone 3 (ZE520KL) Xiaomi Redmi Note 4x
Phone Functions Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert
Sensors Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor, hall sensor, RGB sensor Accelerometer, ambient light sensor, gyro sensor, hall sensor, distance sensor
Security Devices Fingerprint reader -
Additional Phone Features Infrared remote control, Dual microphones, Hi-Res Audio, Google Drive Storage (100 GB) (free for 2 years), ASUS SonicMaster 3.0 technology, ASUS NoiseZero Talk technology Infrared remote control
OTHERS ASUS ZenFone 3 (ZE520KL) Xiaomi Redmi Note 4x
Included Accessories Power adapter USB cable, power adapter, SIM card removal tool
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