Apple iPhone X vs. Xiaomi MI 9

Phone Comparison, Reviews and Tests

In depth comparison and review of Apple iPhone X and Xiaomi MI 9. 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

Apple iPhone X vs. Xiaomi MI 9 Comparison Chart
DESIGN AND DIMENSIONS Apple iPhone X Xiaomi MI 9
Product Type Smartphone Smartphone
Manufacturer Model Number A1901 -
Form Factor Touch Touch
Height 143.6 mm 157.5 mm Xiaomi MI 9 has greater height than Apple iPhone X.
Width 70.9 mm 74.67 mm Xiaomi MI 9 has greater width than Apple iPhone X.
Depth 7.7 mm 7.61 mm Xiaomi MI 9 is narrower than Apple iPhone X.
Weight 174 g 173 g Xiaomi MI 9 is lighter than Apple iPhone X.
Body Colour Space grey | Silver Ocean blue | Piano black
Body Material Glass, oleophobic coating, surgical‑grade stainless steel Curved glass
Protection Dustproof, splashproof, waterproof -
Waterproof (Water-resistant) Yes - Apple iPhone X is waterproof.
IP rating IEC 60529 IP67 -
Repairability Index 4.8 (out of 10) -
SAR Value 1.17 W/kg (body), 1.08 W/kg (head) 1.301 W/kg (body), 1.389 W/kg (head)
Connector Type Lightning USB Type-C - 24 pin USB-C
SIM Card Type (Size) Nano SIM Nano SIM
SIM Card Qty Single-SIM Dual-SIM
DISPLAY Apple iPhone X Xiaomi MI 9
Display Type OLED display OLED display
Display Technology Super Retina HD AMOLED
Screen Size (Display Size) 5.8" 6.39" Xiaomi MI 9 has larger screen size than Apple iPhone X.
Screen Resolution (Display Resolution) 2436 x 1125 pixels 2340 x 1080 pixels Apple iPhone X has better screen resolution than Xiaomi MI 9.
Display Format - Full HD+
Pixel Density 458 ppi 403 ppi Apple iPhone X has better pixel density than Xiaomi MI 9.
Max Brightness 625 cd/m² 600 cd/m² Apple iPhone X has better display brightness than Xiaomi MI 9.
Contrast Ratio 1000000:1 60000:1 Apple iPhone X has better display contrast ratio than Xiaomi MI 9.
HDR Yes Yes Both phones have HDR.
HDR Technology HDR10 HDR10
Display Enhancement Technology Dolby Vision Sunshine mode 2.0
Display Features True Tone display Always-on display, Reading mode, Colour temperature adjustment, night mode, Wide Colour Gamut (WCG)
Display Protection (Screen Protector) Fingerprint-resistant oleophobic coating Fingerprint-resistant coating, Corning Gorilla Glass 6 (scratch resistant glass), oil protective coating
PROCESSOR Apple iPhone X Xiaomi MI 9
Processor Type (CPU) Apple A11 Bionic - with M11 motion Qualcomm Snapdragon 855
Clock Speed - 2.84 GHz
Processor Core Qty - 8-core
64-bit Architecture Yes Yes Both phones have 64-bit architecture.
Graphics System (GPU) - Qualcomm ADRENO 640
MEMORY Apple iPhone X Xiaomi MI 9
RAM - LPDDR4X SDRAM - 6 GB
Internal Memory Size (Storage Capacity) 64 GB 64 GB Both phones have the same internal memory capacity.
CAMERA Apple iPhone X Xiaomi MI 9
MAIN CAMERA
Number of Main Cameras 2 3
Sensor Resolution 12 Megapixel 48 Megapixel Xiaomi MI 9 has better camera resolution than Apple iPhone X.
Sensor Type BSI -
Sensor Name - Sony Exmor RS IMX586 sensor
Lens Type Wide-angle lens Ultra wide-angle lens
Lens Aperture F/1.8 F/1.75 Xiaomi MI 9 has better lens aperture than Apple iPhone X.
Lens Construction 6-element -
Pixel Size - 0.8 μm
Optical Image Stabiliser (OIS) Dual OIS (Optical Image Stabilisation) - Apple iPhone X has optical stabilisation.
Focus Adjustment Automatic Automatic
Laser Auto Focus - Yes
Optical Zoom - 2x
Digital Zoom 10x 10x Both phones have the same digital zoom.
Special Effects - HDR
HDR Mode Auto HDR mode -
Camera Modes Burst mode, Panorama, Time-lapse mode, Timer mode, tap to focus, portrait mode, Portrait Lighting (beta), Live Photos, Live Photos with stabilisation Burst mode, Panorama, portrait mode, AI Beautify, Smart ultra-wide angle mode, Ultra nightscape mode, Photo timer, Level display, Custom watermark, Full body portrait mode, Moon mode
Face Recognition (Face ID) Body and face detection Face recognition Both phones have face detection.
Light Source True Tone quad LED flash Dual flash
Still Image Resolutions - 8000 x 6000
Video Resolutions 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, 3840 x 2160 (4K) at 30 fps, 3840 x 2160 (4K) at 60 fps, 3840 x 2160 (4K) at 24 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps 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) Sapphire crystal lens cover, Cinematic video stabilisation, Focus Pixels, Cinematic video stabilisation, Playback zoom, Hybrid IR filter, Exposure control, noise reduction, geotagging, Continuous Auto Focus (CAF) Sapphire crystal lens cover, Phase Detect Auto-Focus (PDAF), Dynamic photos, video stabilisation, Contrast Auto-Focus, 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, Quick motion
SECOND CAMERA
Sensor Resolution (2nd Camera) 12 Megapixel 12 Megapixel Both phones have the same second camera resolution.
Lens Type (2nd Camera) Telephoto lens Telephoto lens
Lens Aperture (2nd Camera) F/2.4 F/2.2 Xiaomi MI 9 has better second camera lens aperture than Apple iPhone X.
Pixel Size (2nd Camera) - 1 μm
Camera Functions (2nd Camera) Capture depth information -
Camera Features (2nd Camera) - Macro photography
THIRD CAMERA
Sensor Resolution (3rd Camera) - 16 Megapixel
Lens Type (3rd Camera) - Ultra wide-angle lens
Lens Aperture (3rd Camera) - F/2.2
Pixel Size (3rd Camera) - 1 μm
FRONT CAMERA
Number of Front Cameras 2 1
Sensor Resolution (Front) 7 Megapixel 20 Megapixel Xiaomi MI 9 has better front camera resolution than Apple iPhone X.
Sensor Type (Front) BSI -
Lens Aperture (Front) F/2.2 F/2.0 Xiaomi MI 9 has better front lens aperture than Apple iPhone X.
Pixel Size (Front) - 0.9 μm
Special Effects (Front) - HDR, Magic mirror
HDR Mode (Front) Auto HDR mode -
Camera Modes (Front) Burst mode, Timer mode, portrait mode, Portrait Lighting (beta), Live Photos AI portrait mode, AI Beautify, AI makeup
Face Recognition (Face ID) Body and face detection, face recognition Face recognition Both phones have face detection.
Light Source (Front) Retina Flash -
Video Resolutions (Front) 1920 x 1080 (1080p) 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps
Camera Features (Front) FaceTime HD camera, Exposure control, Auto image stabilisation, Animoji Self-timer, age recognition, Video Beautify, AI scene detection, AI studio lighting, Eye light, AI feature adjustment, AI lens flare
SECOND FRONT CAMERA
Camera Functions (2nd Front) Infrared camera for Face ID -
Camera Features (2nd Front) Flood Illuminator, Dot Projector -
BATTERY AND CHARGING Apple iPhone X Xiaomi MI 9
Battery Capacity (Battery Size) - 3300 mAh
Fast Charging Technology Apple fast charging technology Qualcomm Quick Charge 4.0+ Both phones have fast charging technology.
Wireless Charging Yes - Apple iPhone X can be charged wirelessly.
Wireless Charging Standards Qi WPC, Qi
Talk Time 1260 minutes -
Run Time Details Talk: up to 1260 min
Active online usage: up to 12 hrs
Playback (wireless video): up to 13 hrs
Playback (wireless audio): up to 60 hrs
-
Battery Technology Lithium Ion -
CELLULAR Apple iPhone X Xiaomi MI 9
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 iOS 11 -
User Interface - MIUI 10
Intelligent Assistant Siri Google Assistant
Payment Technology Apple Pay Android Pay
Navigation A-GPS, GLONASS, Galileo, QZSS GPS, A-GPS, GLONASS, BeiDou, Galileo
COMMUNICATIONS Apple iPhone X Xiaomi MI 9
Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, DC-HSDPA, LTE Advanced, VoLTE, FDD-LTE, TDD-LTE, VoWiFi GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE
2G Band 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 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 17, Band 18, Band 19, Band 20, Band 25, Band 26, Band 28, Band 29, Band 30, Band 34, Band 38, Band 39, Band 40, Band 41, Band 66 Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 20, Band 28, Band 38, Band 39, Band 40
4G LTE Frequency FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700c, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 1900+, FDD 850+, FDD 700 APT, FDD 700d, FDD 2300 WCS, TDD 2000, TDD 2600, TDD 1900, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 1900, TDD 2300
Wireless Interface IEEE 802.11ac IEEE 802.11a/b/g/n/ac
Bluetooth Bluetooth 5.0 Bluetooth 5.0
NFC Yes Yes Both phones have an NFC reader for mobile payments.
WLAN Security - WPA3
Messaging Services SMS, MMS SMS, MMS
MEDIA Apple iPhone X Xiaomi MI 9
Supported Digital Audio Standards Audible, MP3, FLAC, Apple Lossless, AC-3, AAC-LC, LPCM, HE-AAC, Audible AAX, Audible AAX+, protected AAC, EAC3, HE-AAC v2 WAV, AAC, AMR, MP3, FLAC, apt-X, LDAC, apt-X HD
Supported Digital Video Standards M-JPEG, H.264, HEVC, MPEG-4 Part 2, HEIF MKV, VC-1, XviD, MPEG-4, H.264, M4V, HEVC, VP8, VP9
Sound Enhancements - Qualcomm TrueWireless Stereo Plus
FEATURES Apple iPhone X Xiaomi MI 9
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, 3-axis gyro sensor, digital compass, barometer Accelerometer, ambient light sensor, digital compass, gyro sensor, ultrasonic proximity sensor, linear rotation vector sensor
Security Devices Face recognition Fingerprint reader (under display)
Security Technology Face ID -
Additional Phone Features Multitasking, FaceTime, AirPrint wireless printing, iCloud Photo Sharing, AirDrop function, MIMO technology, Wi-Fi Calling, iBeacon microlocation, CarPlay function, QuickType keyboard, Handoff, HomeKit, Apple TV support (2nd or later), Fast Charging, AirPlay 2 wireless streaming, M11 motion coprocessor, Neural Engine Infrared remote control, MIMO technology, MU-MIMO technology, MI Turbo, GAME Turbo
OTHERS Apple iPhone X Xiaomi MI 9
Included Accessories Power adapter, Apple EarPods with Lightning Connector, Lightning to USB cable Protective cover, SIM card removal tool, USB-C cable, USB-C audio adapter, 18W QC3.0 charger
Compliant Standards IEC 60529 IP67, HAC (Hearing Aid Compatible) TUV Rheinland Certified Safe Fast-Charge System
Max Operating Temperature 35 °C -
Min Operating Temperature 0 °C -
Humidity Range Operating 5 - 95% (non-condensing) -
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