Xiaomi MI 4i vs. Xiaomi MI 9T Pro

Phone Comparison, Reviews and Tests

In depth comparison and review of Xiaomi MI 4i and Xiaomi MI 9T Pro. 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 MI 9T Pro Comparison Chart
DESIGN AND DIMENSIONS Xiaomi MI 4i Xiaomi MI 9T Pro
Product Type Smartphone Smartphone
Form Factor Touch Touch
Height 138.1 mm 156.7 mm Xiaomi MI 9T Pro has greater height than Xiaomi MI 4i.
Width 69.6 mm 74.3 mm Xiaomi MI 9T Pro has greater width than Xiaomi MI 4i.
Depth 7.8 mm 8.8 mm Xiaomi MI 4i is narrower than Xiaomi MI 4i.
Weight 130 g 191 g Xiaomi MI 4i is lighter than Xiaomi MI 4i.
Body Colour Black | Dark grey | White Glacier blue | Carbon black
Waterproof (Water-resistant) - -
SAR Value 1.29 W/kg 1.508 W/kg (body), 1.302 W/kg (head)
Integrated Components FM radio -
Connector Type Micro-USB - 5 pin Micro-USB Type B
Headset jack - mini-phone 3.5mm
USB Type-C - 24 pin USB-C
Headset jack - mini-phone 3.5mm
SIM Card Type (Size) Micro SIM Nano SIM
SIM Card Qty Dual-SIM Dual-SIM
DISPLAY Xiaomi MI 4i Xiaomi MI 9T Pro
Display Type LCD display OLED display
Display Technology IPS AMOLED
Screen Size (Display Size) 5" 6.39" Xiaomi MI 9T Pro has larger screen size than Xiaomi MI 4i.
Screen Resolution (Display Resolution) 1920 x 1080 pixels 2340 x 1080 pixels Xiaomi MI 9T Pro has better screen resolution than Xiaomi MI 4i.
Display Format Full HD Full HD+
Pixel Density 441 ppi 403 ppi Xiaomi MI 4i has better pixel density than Xiaomi MI 9T Pro.
Max Brightness - 600 cd/m²
Colour Depth 16.7 million colours -
Contrast Ratio - 60000:1
HDR - Yes Xiaomi MI 9T Pro has HDR.
Display Enhancement Technology - Sunshine mode 2.0
Display Features - Colour temperature adjustment, night mode, Wide Colour Gamut (WCG), 256 ranks adjustable Reading mode, Dark mode, Multi-colour Always-on display, Dynamic display, Anti-flicker display
Display Protection (Screen Protector) Corning Concore Glass Corning Gorilla Glass 5 (scratch resistant glass)
PROCESSOR Xiaomi MI 4i Xiaomi MI 9T Pro
Processor Type (CPU) Qualcomm Snapdragon 615 Qualcomm Snapdragon 855
Clock Speed 1.7 GHz 2.84 GHz Xiaomi MI 9T Pro has higher clock speed than Xiaomi MI 4i.
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 640
MEMORY Xiaomi MI 4i Xiaomi MI 9T Pro
RAM 2 GB LPDDR4X SDRAM - 6 GB Xiaomi MI 9T Pro has more RAM than Xiaomi MI 4i.
Internal Memory Size (Storage Capacity) 16 GB 64 GB Xiaomi MI 9T Pro has more internal memory than Xiaomi MI 4i.
CAMERA Xiaomi MI 4i Xiaomi MI 9T Pro
MAIN CAMERA
Number of Main Cameras 1 3
Sensor Resolution 13 Megapixel 48 Megapixel Xiaomi MI 9T Pro has better camera resolution than Xiaomi MI 4i.
Sensor Size - 1/2"
Lens Type - Wide-angle lens
Lens Aperture F/2.0 F/1.75 Xiaomi MI 9T Pro has better lens aperture than Xiaomi MI 4i.
Lens Construction 5-element 6-element
Field of View (FoV) - 79.4 degree(s)
Pixel Size - 0.8 μm
Focus Adjustment Automatic Automatic
Laser Auto Focus - Yes
Optical Zoom - 2x
Digital Zoom - 10x
Special Effects - HDR
HDR Mode Auto HDR mode -
Camera Modes Panorama, manual mode Burst mode, Panorama, Pro mode, AI Beauty, Smart ultra-wide angle mode, Photo timer, Level display, Custom watermark, Full body portrait mode, Moon mode, AI smart slimming
Face Recognition (Face ID) Face detection, smile detection Face recognition Both phones have face detection.
Light Source Dual LED flash LED flash
Still Image Resolutions - 8000 x 6000
Video Resolutions 1920 x 1080 (1080p) 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, Slo-mo video 1920 x 1080 (1080p) at 120 fps, Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps, Slo-mo video 1280 x 720 (720p) at 120 fps, 3840 x 2160 (4K) at 60 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps, Slo-mo video 1920 x 1080 (1080p) at 960 fps, Slo-mo video 1280 x 720 (720p) at 960 fps
Camera Features (Functions) - Phase Detect Auto-Focus (PDAF), Dynamic photos, video stabilisation, Contrast Auto-Focus, 4-in-1 Super Pixel, AI scene detection, AI studio lighting, Video Beautify, AI Triple camera, 960 fps Smart audio pairing, AI lens flare, AI high resolution photos, Portrait mode background blur adjustment, Ultra wide-angle edge distortion correction, Group photo face correction, Portrait mode background blurring, Motion tracking, 27 different scenes, Steady handheld night photography
SECOND CAMERA
Sensor Resolution (2nd Camera) - 8 Megapixel
Sensor Size (2nd Camera) - 1/4"
Sensor Name (2nd Camera) - Omnivision OV8856 sensor
Lens Type (2nd Camera) - Telephoto lens
Lens Aperture (2nd Camera) - F/2.4
Field of View (2nd Camera) - 44.6 degree(s)
Pixel Size (2nd Camera) - 1.12 μm
Optical Zoom - 2x
THIRD CAMERA
Sensor Resolution (3rd Camera) - 13 Megapixel
Lens Type (3rd Camera) - Ultra wide-angle lens
Lens Aperture (3rd Camera) - F/2.4
Field of View (3rd Camera) - 124.8 degree(s)
Pixel Size (3rd Camera) - 1.12 μm
FRONT CAMERA
Number of Front Cameras 1 1
Front Camera Design - Pop-up
Sensor Resolution (Front) 5 Megapixel 20 Megapixel Xiaomi MI 9T Pro has better front camera resolution than Xiaomi MI 4i.
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 -
Pixel Size (Front) - 0.8 μm
Special Effects (Front) - HDR, Magic mirror
Camera Modes (Front) - Selfie panorama, AI portrait mode, AI Beautify, AI makeup
Face Recognition (Face ID) - Face recognition Xiaomi MI 9T Pro has face detection.
Video Resolutions (Front) - 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps
Camera Features (Front) - Self-timer, age recognition, AI scene detection, AI studio lighting, Eye light, AI feature adjustment, sapphire crystal lens cover, ambient bulb, Palm shutter, AI silhouette detection, wide-angle distortion correction, camera display brightness correction
BATTERY AND CHARGING Xiaomi MI 4i Xiaomi MI 9T Pro
Battery Capacity (Battery Size) 3120 mAh 4000 mAh Xiaomi MI 9T Pro has larger battery capacity than Xiaomi MI 4i.
Fast Charging Technology - Qualcomm Quick Charge 4.0+ Xiaomi MI 9T Pro has fast charging technology.
Talk Time 2100 minutes -
Run Time Details Talk (WCDMA): up to 2100 min -
Battery Technology Lithium Ion Lithium Ion
CELLULAR Xiaomi MI 4i Xiaomi MI 9T Pro
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 10
Payment Technology - Google Pay
Navigation GPS, A-GPS, GLONASS, BeiDou GPS, A-GPS, GLONASS, BeiDou, Galileo
COMMUNICATIONS Xiaomi MI 4i Xiaomi MI 9T Pro
Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE GPRS, EDGE, HSDPA, HSUPA, HSPA+, VoLTE, 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 4, Band 5, Band 8
3G UMTS Frequency - 2100, 1900, 1700, 850, 900
4G LTE Band Band 3, Band 7, Band 38, Band 39, Band 40, Band 41 Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40
4G LTE Frequency FDD 1800+, FDD 2600, TDD 2600, TDD 1900, TDD 2300, TDD 2500 FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300
Wireless Interface IEEE 802.11a/b/g/n/ac IEEE 802.11a/b/g/n/ac
Bluetooth Bluetooth 4.1 Bluetooth 5.0
Bluetooth Profiles A2DP, HID -
NFC - Yes Xiaomi MI 9T Pro has NFC reader for mobile payments.
Messaging Services SMS, MMS SMS, MMS
MEDIA Xiaomi MI 4i Xiaomi MI 9T Pro
Supported Digital Audio Standards WAV, MP3, FLAC, eAAC+ WAV, AAC, AMR, MP3, FLAC, APE (Monkey's Audio), apt-X, LDAC, apt-X HD
Supported Digital Video Standards XviD, MPEG-4, DivX, H.264 MKV, VC-1, XviD, MPEG-4, H.264, M4V, HEVC, VP8, VP9, MP4
Sound Enhancements - Hi-Fi Sound support, Hi-Res audio, Qualcomm TrueWireless Stereo Plus
Audio Processor - WCD9335
Audio Amplifier - Smart PA
FEATURES Xiaomi MI 4i Xiaomi MI 9T Pro
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, digital compass, gyro sensor, distance sensor, In-screen ambient light sensor
Security Devices - Fingerprint reader (under display)
Additional Phone Features MIMO technology, Active noise-cancellation Dual microphones, MU-MIMO technology, Fast Charging, MI Turbo, GAME Turbo 2.0
OTHERS Xiaomi MI 4i Xiaomi MI 9T Pro
Included Accessories Power adapter Protective cover, power adapter, SIM card removal tool, USB-C cable
Compliant Standards - VDE, TUV Rheinland Certified Safe Fast-Charge System
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