In depth comparison and review of Xiaomi MI 9 SE and Realme C31. 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.
DESIGN AND DIMENSIONS | Xiaomi MI 9 SE | Realme C31 |
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Product Type | Smartphone | Smartphone | |
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Manufacturer Model Number | - | RMX3501 | |
Form Factor | Touch | Touch | |
Height | 147.5 mm | 164.7 mm | Realme C31 has greater height than Xiaomi MI 9 SE. |
Width | 70.5 mm | 76.1 mm | Realme C31 has greater width than Xiaomi MI 9 SE. |
Depth | 7.45 mm | 8.4 mm | Xiaomi MI 9 SE is narrower than Xiaomi MI 9 SE. |
Weight | 155 g | 197 g | Xiaomi MI 9 SE is lighter than Xiaomi MI 9 SE. |
Body Colour | Ocean blue | Piano black | Light silver | Dark green | |
Body Material | Glass | - | |
Waterproof (Water-resistant) | - | - | |
SAR Value | 1.385 W/kg (body), 1.385 W/kg (head) | 1.147 W/kg (body), 0.957 W/kg (head), 2.663 W/kg (limb) | |
Connector Type | USB Type-C - 24 pin USB-C | Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
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SIM Card Type (Size) | Nano SIM | Nano SIM | |
SIM Card Qty | Dual-SIM | Dual-SIM |
DISPLAY | Xiaomi MI 9 SE | Realme C31 |
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Display Type | OLED display | - | |
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Display Technology | AMOLED | - | |
Screen Size (Display Size) | 5.97" | 6.5" | Realme C31 has larger screen size than Xiaomi MI 9 SE. |
Screen Resolution (Display Resolution) | 2340 x 1080 pixels | 1600 x 720 pixels | Xiaomi MI 9 SE has better screen resolution than Realme C31. |
Display Format | Full HD+ | HD+ | |
Pixel Density | 432 ppi | - | |
Aspect Ratio | - | 20:9 | |
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 Refresh Rate | - | 60 Hz | |
Touch Sampling Rate | - | 120 Hz | |
Display Features | Always-on display, Colour temperature adjustment, night mode, Wide Colour Gamut (WCG), 256 ranks adjustable Reading mode | Ultra-clear View | |
Display Protection (Screen Protector) | Corning Gorilla Glass 5 (scratch resistant glass), fingerprint-resistant coating, oil protective coating | - |
PROCESSOR | Xiaomi MI 9 SE | Realme C31 |
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Processor Type (CPU) | Qualcomm Snapdragon 712 | Unisoc | |
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Processor Number | - | T612 | |
Clock Speed | 2.3 GHz | 1.82 GHz | Xiaomi MI 9 SE has higher clock speed than Realme C31. |
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 616 | ARM Mali-G57 |
MEMORY | Xiaomi MI 9 SE | Realme C31 |
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RAM | LPDDR4X SDRAM - 6 GB | LPDDR4X SDRAM - 4 GB + up to 7 GB virtual extension | Xiaomi MI 9 SE has more RAM than Realme C31. |
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Internal Memory Size (Storage Capacity) | 64 GB | 64 GB | Both phones have the same internal memory capacity. |
Memory Interface | - | UFS 2.2 | |
Supported Flash Memory Cards (Expandable Memory) | - | microSDHC, microSD, microSDXC - up to 1 TB |
CAMERA | Xiaomi MI 9 SE | Realme C31 |
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MAIN CAMERA |
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Number of Main Cameras | 3 | 3 | |
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Sensor Resolution | 48 Megapixel | 13 Megapixel | Xiaomi MI 9 SE has better camera resolution than Realme C31. |
Sensor Name | Sony Exmor RS IMX586 sensor | - | |
Lens Type | Wide-angle lens | - | |
Lens Aperture | F/1.75 | F/2.2 | Xiaomi MI 9 SE has better lens aperture than Xiaomi MI 9 SE. |
Lens Construction | - | 5-element | |
Focus Adjustment | Automatic | Automatic | |
Laser Auto Focus | Yes | - | |
Optical Zoom | 2x | - | |
Digital Zoom | 10x | - | |
Special Effects | HDR | HDR | |
Camera Modes | 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 | Burst mode, Panorama, Time-lapse mode, Pro mode, Portrait, Filter mode, Macro mode, Night Pro | |
Face Recognition (Face ID) | Face recognition | - | Xiaomi MI 9 SE has face detection. |
Light Source | Dual flash | LED flash | |
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, 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 | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, 854 x 480 (480p) at 30 fps | |
Camera Features (Functions) | 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 | AI Triple camera |
SECOND CAMERA |
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Sensor Resolution (2nd Camera) | 13 Megapixel | 2 Megapixel | Xiaomi MI 9 SE has better second camera resolution than Realme C31. |
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Lens Type (2nd Camera) | Ultra wide-angle lens | - | |
Lens Aperture (2nd Camera) | F/2.4 | F/2.4 | Both phones have the same second camera lens aperture. |
Field of View (2nd Camera) | 123 degree(s) | - | |
Camera Functions (2nd Camera) | - | Macro camera | |
Camera Features (2nd Camera) | - | 4cm macro photography |
THIRD CAMERA |
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Sensor Resolution (3rd Camera) | 8 Megapixel | 0.3 Megapixel | Xiaomi MI 9 SE has higher resolution third camera than Realme C31. |
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Lens Type (3rd Camera) | Telephoto lens | - | |
Lens Aperture (3rd Camera) | F/2.4 | F/2.8 | Xiaomi MI 9 SE has better third camera lens aperture than Xiaomi MI 9 SE. |
Pixel Size (3rd Camera) | 1 μm | - | |
Camera Functions (3rd Camera) | - | B&W lens |
FRONT CAMERA |
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Number of Front Cameras | 1 | 1 | |
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Sensor Resolution (Front) | 20 Megapixel | 5 Megapixel | Xiaomi MI 9 SE has better front camera resolution than Realme C31. |
Lens Aperture (Front) | - | F/2.2 | |
Lens Element Qty (Front) | - | 3-element | |
Special Effects (Front) | HDR, Magic mirror | HDR | |
Camera Modes (Front) | AI portrait mode, AI Beautify, AI makeup | Beauty mode, Filter mode | |
Face Recognition (Face ID) | Face recognition | - | Xiaomi MI 9 SE has face detection. |
Video Resolutions (Front) | - | 1280 x 720 (720p) at 30 fps, 854 x 480 (480p) at 30 fps | |
Camera Features (Front) | Self-timer, age recognition, Video Beautify, AI scene detection, AI studio lighting, Eye light, AI feature adjustment, AI lens flare | AI Selfie |
BATTERY AND CHARGING | Xiaomi MI 9 SE | Realme C31 |
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Battery Capacity (Battery Size) | 3070 mAh | 5000 mAh | Realme C31 has larger battery capacity than Xiaomi MI 9 SE. |
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Fast Charging Technology | Qualcomm Quick Charge 4.0+ | - | Xiaomi MI 9 SE has fast charging technology. |
CELLULAR | Xiaomi MI 9 SE | Realme C31 |
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Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
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Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
Operating System | - | Android 11 | |
User Interface | MIUI 10 | Realme UI (R Edition) | |
Intelligent Assistant | Google Assistant | - | |
Payment Technology | Google Pay | - | |
Navigation | GPS, A-GPS, GLONASS, BeiDou, Galileo | GPS, A-GPS, BeiDou, Galileo |
COMMUNICATIONS | Xiaomi MI 9 SE | Realme C31 |
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Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE | GPRS, EDGE, HSPA+, FDD-LTE, TDD-LTE | |
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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 | Band 1, Band 5, Band 8 | |
3G UMTS Frequency | 2100, 1900, 1700, 850, 900 | 2100, 850, 900 | |
4G LTE Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40 | Band 1, Band 3, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40, Band 41 | |
4G LTE Frequency | 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 | FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | |
Wireless Interface | IEEE 802.11a/b/g/n/ac | Wi-Fi | |
Bluetooth | Bluetooth 5.0 | Bluetooth 5.0 | |
NFC | Yes | - | Xiaomi MI 9 SE has NFC reader for mobile payments. |
Messaging Services | SMS, MMS | - |
MEDIA | Xiaomi MI 9 SE | Realme C31 |
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Supported Digital Audio Standards | WAV, AAC, AMR, MP3, FLAC, eAAC+, APE (Monkey's Audio), apt-X, LDAC, AMR-WB, AMR-NB, M4V, apt-X HD | - | |
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Supported Digital Video Standards | MKV, VC-1, XviD, MPEG-4, H.264, M4V, HEVC, VP8, VP9, H.265, MP4 | - | |
Sound Enhancements | Qualcomm TrueWireless Stereo Plus | - |
FEATURES | Xiaomi MI 9 SE | Realme C31 |
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Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | - | |
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Sensors | Accelerometer, ambient light sensor, digital compass, gyro sensor, ultrasonic proximity sensor, linear rotation vector sensor | Accelerometer, proximity sensor, magnetometer, gyro sensor, light sensor | |
Security Devices | Fingerprint reader (under display) | Fingerprint reader (side) | |
Additional Phone Features | Infrared remote control, MIMO technology, MU-MIMO technology, MI Turbo, GAME Turbo | MIMO technology, Ultra Power Saving Mode, Fast Charging |
OTHERS | Xiaomi MI 9 SE | Realme C31 |
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Included Accessories | Protective cover, power adapter, SIM card removal tool, USB-C cable, USB-C to 3.5 jack audio cable | SIM card removal tool, 10W charger, micro-USB cable | |
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Compliant Standards | TUV Rheinland Certified Safe Fast-Charge System | TUV Rheinland |