Xiaomi MI 4i vs. Xiaomi Redmi 4X

Phone Comparison, Reviews and Tests

In depth comparison and review of Xiaomi MI 4i and Xiaomi Redmi 4X. Compare sizes, cameras, batteries, memory, and other important specifications and features to easily choose the right phone for you. Our goal is to help you uncover differences between the products and find the phone that will best fit your needs.

Phone Specifications Comparison

Xiaomi MI 4i vs. Xiaomi Redmi 4X Comparison Chart
DESIGN AND DIMENSIONS Xiaomi MI 4i Xiaomi Redmi 4X
Product Type Smartphone Smartphone
Form Factor Touch Touch
Height 138.1 mm 139.24 mm Xiaomi Redmi 4X has greater height than Xiaomi MI 4i.
Width 69.6 mm 69.96 mm Xiaomi Redmi 4X has greater width than Xiaomi MI 4i.
Depth 7.8 mm 8.65 mm Xiaomi MI 4i is narrower than Xiaomi MI 4i.
Weight 130 g 146 g Xiaomi MI 4i is lighter than Xiaomi MI 4i.
Body Colour Black | Dark grey | White Black
Body Material - Metal
Waterproof (Water-resistant) - -
SAR Value 1.29 W/kg 1.5 W/kg (body), 0.583 W/kg (head)
Integrated Components FM radio -
Connector Type Micro-USB - 5 pin Micro-USB Type B
Headset jack - mini-phone 3.5mm
Micro-USB - 5 pin Micro-USB Type B
Headset jack - mini-phone 3.5mm
SIM Card Type (Size) Micro SIM Micro SIM, nano SIM
SIM Card Qty Dual-SIM Dual-SIM
SIM Card Configuration Details - Micro SIM + nano SIM/microSD
DISPLAY Xiaomi MI 4i Xiaomi Redmi 4X
Display Type LCD display -
Display Technology IPS -
Screen Size (Display Size) 5" 5" Both phones have the same screen size.
Screen Resolution (Display Resolution) 1920 x 1080 pixels 1280 x 720 pixels Xiaomi MI 4i has better screen resolution than Xiaomi Redmi 4X.
Display Format Full HD HD
Pixel Density 441 ppi -
Max Brightness - 450 cd/m²
Colour Depth 16.7 million colours -
Contrast Ratio - 1000:1
Display Features - 2.5D Glass, Night Display, Reading mode, Colour temperature adjustment
Display Protection (Screen Protector) Corning Concore Glass Corning Gorilla Glass (scratch resistant glass)
PROCESSOR Xiaomi MI 4i Xiaomi Redmi 4X
Processor Type (CPU) Qualcomm Snapdragon 615 Qualcomm Snapdragon 435
Clock Speed 1.7 GHz 1.4 GHz Xiaomi MI 4i has higher clock speed than Xiaomi Redmi 4X.
Processor Core Qty 8-core 8-core Both phones have the same number of phone cores.
64-bit Architecture Yes Yes Both phones have 64-bit architecture.
Graphics System (GPU) Qualcomm ADRENO 405 Qualcomm ADRENO 505
MEMORY Xiaomi MI 4i Xiaomi Redmi 4X
RAM 2 GB 3 GB Xiaomi Redmi 4X has more RAM than Xiaomi MI 4i.
Internal Memory Size (Storage Capacity) 16 GB 32 GB Xiaomi Redmi 4X has more internal memory than Xiaomi MI 4i.
Supported Flash Memory Cards (Expandable Memory) - microSDHC, microSDXC - up to 128 GB
CAMERA Xiaomi MI 4i Xiaomi Redmi 4X
MAIN CAMERA
Number of Main Cameras 1 1
Sensor Resolution 13 Megapixel 13 Megapixel Both phones have the same camera resolution.
Lens Aperture F/2.0 F/2.0 Both phones have the same camera lens aperture.
Lens Construction 5-element 5-element
Focus Adjustment Automatic Automatic
Special Effects - HDR
HDR Mode Auto HDR mode -
Camera Modes Panorama, manual mode Burst mode, Panorama
Face Recognition (Face ID) Face detection, smile detection Face recognition Both phones have face detection.
Light Source Dual LED flash LED light
Video Resolutions 1920 x 1080 (1080p) 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps
Camera Features (Functions) - Phase Detect Auto-Focus (PDAF)
FRONT CAMERA
Number of Front Cameras 1 1
Sensor Resolution (Front) 5 Megapixel 5 Megapixel Both phones have the same front camera resolution.
Lens Type (Front) Wide-angle lens -
Lens Aperture (Front) F/1.8 F/2.2 Xiaomi MI 4i has better front lens aperture than Xiaomi MI 4i.
Lens Element Qty (Front) 5-element -
Camera Modes (Front) - Beautify Selfie mode
Face Recognition (Face ID) - Face recognition Xiaomi Redmi 4X has face detection.
BATTERY AND CHARGING Xiaomi MI 4i Xiaomi Redmi 4X
Battery Capacity (Battery Size) 3120 mAh 4100 mAh Xiaomi Redmi 4X has larger battery capacity than Xiaomi MI 4i.
Standby Time - 432 hours
Talk Time 2100 minutes 2160 minutes Xiaomi Redmi 4X has longer battery life when making calls than Xiaomi MI 4i.
Run Time Details Talk (WCDMA): up to 2100 min Talk: up to 2160 min
Playback (video): up to 15 hrs
Gaming: up to 13 hrs
Standby (LTE): up to 432 hrs
Playback (audio): up to 87 hrs
Reading: up to 26 hrs
Navigation: up to 15 hrs
Battery Technology Lithium Ion -
CELLULAR Xiaomi MI 4i Xiaomi Redmi 4X
Technology TD-SCDMA / WCDMA (UMTS) / GSM WCDMA (UMTS) / GSM
Mobile Broadband Generation 4G 4G Both phones have the same mobile network generation.
Operating System Android 5.0.2 (Lollipop) -
User Interface MIUI V6 MIUI 8
Navigation GPS, A-GPS, GLONASS, BeiDou GPS, A-GPS, GLONASS, BeiDou
COMMUNICATIONS Xiaomi MI 4i Xiaomi Redmi 4X
Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE
2G Band 850 GSM, 900 GSM, 1800 GSM, 1900 GSM 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 3, Band 7, Band 38, Band 39, Band 40, Band 41 Band 1, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 38, Band 40
4G LTE Frequency FDD 1800+, FDD 2600, TDD 2600, TDD 1900, TDD 2300, TDD 2500 FDD 2100, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 800 DD, TDD 2600, TDD 2300
Wireless Interface IEEE 802.11a/b/g/n/ac Infrared (IrDA), IEEE 802.11b/g/n
Bluetooth Bluetooth 4.1 Bluetooth 4.1
Bluetooth Profiles A2DP, HID HID
Messaging Services SMS, MMS SMS, MMS
MEDIA Xiaomi MI 4i Xiaomi Redmi 4X
Supported Digital Audio Standards WAV, MP3, FLAC, eAAC+ WAV, AAC, PCM, AMR, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), DSD, AMR-WB, AMR-NB
Supported Digital Video Standards XviD, MPEG-4, DivX, H.264 MKV, VC-1, XviD, MPEG-4, H.264, M4V, HEVC, H.265
FEATURES Xiaomi MI 4i Xiaomi Redmi 4X
Phone Functions Speakerphone, call timer, conference call, flight mode, 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 Accelerometer, ambient light sensor, proximity sensor, gyro sensor
Security Devices - Fingerprint reader
Additional Phone Features MIMO technology, Active noise-cancellation Infrared remote control
OTHERS Xiaomi MI 4i Xiaomi Redmi 4X
Included Accessories Power adapter USB cable, power adapter, SIM card removal tool
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