Vivo X20 Plus UD vs. Xiaomi MI 9 SE

Phone Comparison, Reviews and Tests

In depth comparison and review of Vivo X20 Plus UD and Xiaomi MI 9 SE. 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

Vivo X20 Plus UD vs. Xiaomi MI 9 SE Comparison Chart
DESIGN AND DIMENSIONS Vivo X20 Plus UD Xiaomi MI 9 SE
Product Type Smartphone Smartphone
Form Factor Touch Touch
Height 155.3 mm 147.5 mm Vivo X20 Plus UD has greater height than Xiaomi MI 9 SE.
Width 80.1 mm 70.5 mm Vivo X20 Plus UD has greater width than Xiaomi MI 9 SE.
Depth 7.5 mm 7.45 mm Xiaomi MI 9 SE is narrower than Vivo X20 Plus UD.
Weight 181.5 g 155 g Xiaomi MI 9 SE is lighter than Vivo X20 Plus UD.
Body Colour - Ocean blue | Piano black
Body Material - Glass
Waterproof (Water-resistant) - -
SAR Value - 1.385 W/kg (body), 1.385 W/kg (head)
Connector Type Headset jack - mini-phone 3.5mm
Micro-USB - 5 pin Micro-USB Type B
USB Type-C - 24 pin USB-C
SIM Card Type (Size) Nano SIM Nano SIM
SIM Card Qty Dual-SIM Dual-SIM
SIM Card Configuration Details Nano SIM + nano SIM/microSD -
DISPLAY Vivo X20 Plus UD Xiaomi MI 9 SE
Display Type OLED display OLED display
Display Technology Super AMOLED AMOLED
Screen Size (Display Size) 6.43" 5.97" Vivo X20 Plus UD has larger screen size than Xiaomi MI 9 SE.
Screen Resolution (Display Resolution) 2160 x 1080 pixels 2340 x 1080 pixels Xiaomi MI 9 SE has better screen resolution than Vivo X20 Plus UD.
Display Format - Full HD+
Pixel Density 376 ppi 432 ppi Xiaomi MI 9 SE has better pixel density than Vivo X20 Plus UD.
Max Brightness - 600 cd/m²
Colour Depth 16.7 million colours -
Contrast Ratio - 60000:1
HDR - Yes Xiaomi MI 9 SE has HDR.
HDR Technology - HDR10
Display Enhancement Technology - Sunshine mode 2.0
Display Features - Always-on display, Colour temperature adjustment, night mode, Wide Colour Gamut (WCG), 256 ranks adjustable Reading mode
Display Protection (Screen Protector) - Corning Gorilla Glass 5 (scratch resistant glass), fingerprint-resistant coating, oil protective coating
PROCESSOR Vivo X20 Plus UD Xiaomi MI 9 SE
Processor Type (CPU) Qualcomm Snapdragon 660 Qualcomm Snapdragon 712
Processor Number MSM8956 -
Clock Speed 2.2 GHz 2.3 GHz Xiaomi MI 9 SE has higher clock speed than Vivo X20 Plus UD.
Processor Core Qty 8-core 8-core Both phones have the same number of phone cores.
64-bit Architecture - Yes Xiaomi MI 9 SE has 64-bit architecture.
Graphics System (GPU) Qualcomm ADRENO 512 Qualcomm ADRENO 616
MEMORY Vivo X20 Plus UD Xiaomi MI 9 SE
RAM 4 GB LPDDR4X SDRAM - 6 GB Xiaomi MI 9 SE has more RAM than Vivo X20 Plus UD.
Internal Memory Size (Storage Capacity) 128 GB 64 GB Vivo X20 Plus UD has more internal memory than Xiaomi MI 9 SE.
Supported Flash Memory Cards (Expandable Memory) microSDHC, microSDXC - up to 256 GB -
CAMERA Vivo X20 Plus UD Xiaomi MI 9 SE
MAIN CAMERA
Number of Main Cameras 2 3
Sensor Resolution 12 Megapixel 48 Megapixel Xiaomi MI 9 SE has better camera resolution than Vivo X20 Plus UD.
Sensor Name - Sony Exmor RS IMX586 sensor
Lens Type - Wide-angle lens
Lens Aperture F/1.8 F/1.75 Xiaomi MI 9 SE has better lens aperture than Vivo X20 Plus UD.
Focus Adjustment Automatic Automatic
Laser Auto Focus - Yes
Optical Zoom - 2x
Digital Zoom - 10x
Special Effects HDR HDR
Camera Modes Panorama 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) Face detection Face recognition Both phones have face detection.
Light Source LED flash Dual flash
Video Resolutions 1920 x 1080 (1080p) at 30 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, Slo-mo video 1280 x 720 (720p) at 960 fps
Camera Features (Functions) Geotagging 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) 5 Megapixel 13 Megapixel Xiaomi MI 9 SE has better second camera resolution than Vivo X20 Plus UD.
Lens Type (2nd Camera) - Ultra wide-angle lens
Lens Aperture (2nd Camera) - F/2.4
Field of View (2nd Camera) - 123 degree(s)
THIRD CAMERA
Sensor Resolution (3rd Camera) - 8 Megapixel
Lens Type (3rd Camera) - Telephoto lens
Lens Aperture (3rd Camera) - F/2.4
Pixel Size (3rd Camera) - 1 μm
FRONT CAMERA
Number of Front Cameras 1 1
Sensor Resolution (Front) 12 Megapixel 20 Megapixel Xiaomi MI 9 SE has better front camera resolution than Vivo X20 Plus UD.
Lens Aperture (Front) F/2.0 -
Special Effects (Front) - HDR, Magic mirror
Camera Modes (Front) - AI portrait mode, AI Beautify, AI makeup
Face Recognition (Face ID) - Face recognition Xiaomi MI 9 SE has face detection.
Light Source (Front) Flash -
Video Resolutions (Front) 1920 x 1080 (1080p) -
Camera Features (Front) - Self-timer, age recognition, Video Beautify, AI scene detection, AI studio lighting, Eye light, AI feature adjustment, AI lens flare
BATTERY AND CHARGING Vivo X20 Plus UD Xiaomi MI 9 SE
Battery Capacity (Battery Size) 3900 mAh 3070 mAh Vivo X20 Plus UD has larger battery capacity than Xiaomi MI 9 SE.
Fast Charging Technology - Qualcomm Quick Charge 4.0+ Xiaomi MI 9 SE has fast charging technology.
Battery Technology Lithium Ion -
CELLULAR Vivo X20 Plus UD Xiaomi MI 9 SE
Technology CDMA2000 1X / GSM / WCDMA (UMTS) / TD-SCDMA WCDMA (UMTS) / GSM
Mobile Broadband Generation 4G 4G Both phones have the same mobile network generation.
Operating System Funtouch OS 3.2 (based on Android 7.1.1) -
User Interface - MIUI 10
Intelligent Assistant - Google Assistant
Payment Technology - Google Pay
Navigation GPS, A-GPS GPS, A-GPS, GLONASS, BeiDou, Galileo
COMMUNICATIONS Vivo X20 Plus UD Xiaomi MI 9 SE
Data Transmission GPRS, EDGE, EV-DO, 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, 800 CDMA2000 1X 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 8, 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 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 900, 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 5.0 LE Bluetooth 5.0
Bluetooth Profiles A2DP -
NFC - Yes Xiaomi MI 9 SE has NFC reader for mobile payments.
Messaging Services SMS, MMS SMS, MMS
MEDIA Vivo X20 Plus UD Xiaomi MI 9 SE
Supported Digital Audio Standards WAV, MP3, FLAC, eAAC+ WAV, AAC, AMR, MP3, FLAC, eAAC+, APE (Monkey's Audio), apt-X, LDAC, AMR-WB, AMR-NB, M4V, apt-X HD
Supported Digital Video Standards MPEG-4, H.264 MKV, VC-1, XviD, MPEG-4, H.264, M4V, HEVC, VP8, VP9, H.265, MP4
Sound Enhancements Hi-Fi Sound support Qualcomm TrueWireless Stereo Plus
FEATURES Vivo X20 Plus UD Xiaomi MI 9 SE
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, proximity sensor, digital compass Accelerometer, ambient light sensor, digital compass, gyro sensor, ultrasonic proximity sensor, linear rotation vector sensor
Security Devices Fingerprint reader (under display) Fingerprint reader (under display)
Additional Phone Features Multitasking, Active noise-cancellation Infrared remote control, MIMO technology, MU-MIMO technology, MI Turbo, GAME Turbo
OTHERS Vivo X20 Plus UD Xiaomi MI 9 SE
Included Accessories Power adapter Protective cover, power adapter, SIM card removal tool, USB-C cable, USB-C to 3.5 jack audio cable
Compliant Standards - TUV Rheinland Certified Safe Fast-Charge System
Other projects: