Detailed comparison and review of Sony XPERIA X and Xiaomi MI 9. With our comprehensive overview, you can simply compare sizes, functions, but also other key features of both phones and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the phone that best fits your needs and expectations.
| DESIGN AND DIMENSIONS | Sony XPERIA X | Xiaomi MI 9 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | F5121 | - | |
| Form Factor | Touch | Touch | |
| Height | 143 mm | 157.5 mm | Xiaomi MI 9 has greater height than Sony XPERIA X. |
| Width | 69 mm | 74.67 mm | Xiaomi MI 9 has greater width than Sony XPERIA X. |
| Depth | 7.7 mm | 7.61 mm | Xiaomi MI 9 is narrower than Sony XPERIA X. |
| Weight | 152 g | 173 g | Sony XPERIA X is lighter than Sony XPERIA X. |
| Body Colour | White | Lime gold | Rose gold | Graphite black | Ocean blue | Piano black | |
| Body Material | - | Curved glass | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.23 W/kg (body), 0.72 W/kg (head) | 1.301 W/kg (body), 1.389 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 | |
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | - | Dual-SIM |
| DISPLAY | Sony XPERIA X | Xiaomi MI 9 |
|---|
| Display Type | LCD display | OLED display | |
|---|---|---|---|
| Display Technology | IPS | AMOLED | |
| Screen Size (Display Size) | 5" | 6.39" | Xiaomi MI 9 has larger screen size than Sony XPERIA X. |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 2340 x 1080 pixels | Xiaomi MI 9 has better screen resolution than Sony XPERIA X. |
| Display Format | Full HD | Full HD+ | |
| Pixel Density | - | 403 ppi | |
| Max Brightness | - | 600 cd/m² | |
| Colour Depth | 16.7 million colours | - | |
| Contrast Ratio | - | 60000:1 | |
| HDR | - | Yes | Xiaomi MI 9 has HDR. |
| HDR Technology | - | HDR10 | |
| Display Enhancement Technology | Super Vivid mode | Sunshine mode 2.0 | |
| Display Features | Curve edge | Always-on display, Reading mode, Colour temperature adjustment, night mode, Wide Colour Gamut (WCG) | |
| Display Protection (Screen Protector) | Scratch-resistant glass | Fingerprint-resistant coating, Corning Gorilla Glass 6 (scratch resistant glass), oil protective coating |
| PROCESSOR | Sony XPERIA X | Xiaomi MI 9 |
|---|
| Processor Type (CPU) | Qualcomm | Qualcomm Snapdragon 855 | |
|---|---|---|---|
| Processor Number | MSM8956 | - | |
| Clock Speed | 1.8 GHz | 2.84 GHz | Xiaomi MI 9 has higher clock speed than Sony XPERIA X. |
| Processor Core Qty | 6-core | 8-core | Xiaomi MI 9 has higher processor core quantity than Sony XPERIA X. |
| 64-bit Architecture | Yes | Yes | Both phones have 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 510 | Qualcomm ADRENO 640 |
| MEMORY | Sony XPERIA X | Xiaomi MI 9 |
|---|
| RAM | 3 GB | LPDDR4X SDRAM - 6 GB | Xiaomi MI 9 has more RAM than Sony XPERIA X. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 64 GB | Xiaomi MI 9 has more internal memory than Sony XPERIA X. |
| User Memory | 20 GB | - | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 200 GB | - |
| CAMERA | Sony XPERIA X | Xiaomi MI 9 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 3 | |
|---|---|---|---|
| Sensor Resolution | 23 Megapixel | 48 Megapixel | Xiaomi MI 9 has better camera resolution than Sony XPERIA X. |
| Sensor Name | Sony Exmor RS sensor | Sony Exmor RS IMX586 sensor | |
| Lens Type | Wide-angle lens | Ultra wide-angle lens | |
| Lens Aperture | F/2.0 | F/1.75 | Xiaomi MI 9 has better lens aperture than Sony XPERIA X. |
| Pixel Size | - | 0.8 μm | |
| Focus Adjustment | Automatic | Automatic | |
| Laser Auto Focus | - | Yes | |
| Minimum Focal Length (Focal Distance) | 24 mm | - | |
| Optical Zoom | - | 2x | |
| Digital Zoom | 8x | 10x | Xiaomi MI 9 has better digital zoom than Sony XPERIA X. |
| Special Effects | Night Scene, Creative effect | HDR | |
| HDR Mode | Auto HDR mode | - | |
| Camera Modes | Red-Eye Reduction, Sweep Panorama, AR Effect mode, SteadyShot, Timeshift video | 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) | Smile shutter, Face in Picture | Face recognition | Both phones have face detection. |
| Light Source | LED light | Dual 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) | Quick Launch, Superior Auto, Object tracking, G lens, Scene recognition, Sound Photo, Hybrid Auto focus, Sticker Creator | 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 | |
|---|---|---|---|
| Lens Type (2nd Camera) | - | Telephoto lens | |
| Lens Aperture (2nd Camera) | - | F/2.2 | |
| Pixel Size (2nd Camera) | - | 1 μm | |
| 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 | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 13 Megapixel | 20 Megapixel | Xiaomi MI 9 has better front camera resolution than Sony XPERIA X. |
| Lens Type (Front) | Wide-angle lens | - | |
| Lens Aperture (Front) | F/2.0 | F/2.0 | Both phones have the same front camera lens aperture. |
| Pixel Size (Front) | - | 0.9 μm | |
| 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 has face detection. |
| Video Resolutions (Front) | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) 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 |
| BATTERY AND CHARGING | Sony XPERIA X | Xiaomi MI 9 |
|---|
| Battery Capacity (Battery Size) | 2620 mAh | 3300 mAh | Xiaomi MI 9 has larger battery capacity than Sony XPERIA X. |
|---|---|---|---|
| Fast Charging Technology | - | Qualcomm Quick Charge 4.0+ | Xiaomi MI 9 has fast charging technology. |
| Wireless Charging Standards | - | WPC, Qi | |
| Standby Time | 600 hours | - | |
| Talk Time | 840 minutes | - | |
| Run Time Details | Talk (GSM): up to 600 min Standby (GSM): up to 580 hrs Talk (WCDMA): up to 840 min Standby (WCDMA): up to 600 hrs Standby (LTE): up to 540 hrs Playback (Music): up to 64 hrs Playback (video): up to 10 hrs |
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| CELLULAR | Sony XPERIA 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 | Android 6.0.1 (Marshmallow) | - | |
| User Interface | - | MIUI 10 | |
| Intelligent Assistant | - | Google Assistant | |
| Payment Technology | - | Android Pay | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, A-GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Sony XPERIA X | Xiaomi MI 9 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE | 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 17, Band 19, Band 20, Band 26, Band 28, Band 38, Band 40, Band 41 | 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 700b, FDD 800 upper, FDD 800 DD, FDD 850+, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | 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 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 4.2 | Bluetooth 5.0 | |
| Bluetooth Profiles | HFP, HSP, OPP, PAN, SPP, GAP, A2DP, AVRCP, HID, GAVDP, PBAP, MAP, DIP, GATT, HOGP | - | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| WLAN Security | WEP, WPA, WPA2, TKIP, AES, EAP SIM, EAP-TTLS/MSCHAPv2, EAP-AKA, EAP-TLS, PEAPv0/EAP-MSCHAPv2, PEAPv1/EAP-GTC | WPA3 | |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Sony XPERIA X | Xiaomi MI 9 |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, AIFF, ASF, PCM, Ogg Vorbis, AMR, MP3, FLAC, AAC-LC, XMF, AAC +, OGG, eAAC+, MIDI, M4A, apt-X, MXMF, AWB, IMY, RTTTL, RTX, OTA, MP4, ALAC, OPUS | WAV, AAC, AMR, MP3, FLAC, apt-X, LDAC, apt-X HD | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, AVI, XviD, MPEG-4, 3GP, H.264, H.263, M4V, WebM, VP8, VP9, H.265 | MKV, VC-1, XviD, MPEG-4, H.264, M4V, HEVC, VP8, VP9 | |
| Sound Enhancements | Digital Sound Enhancement Engine (DSEE HX), 3D surround sound (VPT) | Qualcomm TrueWireless Stereo Plus |
| FEATURES | Sony XPERIA X | Xiaomi MI 9 |
|---|
| 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, pedometer, digital compass, barometer, magnetometer, gyro sensor, motion sensor, geomagnetic sensor | Accelerometer, ambient light sensor, digital compass, gyro sensor, ultrasonic proximity sensor, linear rotation vector sensor | |
| Security Devices | Fingerprint reader | Fingerprint reader (under display) | |
| Additional Phone Features | TTY compatible, Radio Data Service (RDS), DLNA Certified, Text-to-Speech (text recognition), sharing media via DLNA, Screen capture, intelligent typing (Gesture), Wi-Fi Miracast, battery STAMINA mode, Glove mode, TRILUMINOS display, X-Reality engine, Screen mirroring, Clear Audio+, Clear Bass, Dynamic normaliser, Smart Cleaning, Digital Noise Cancelling (DNC), Live Color LED, Hi-Res Audio, Low power audio playback, Smart backlight control, MirrorLink support, High-bandwidth Digital Content Protection (HDCP), S-Force Front surround, Read Mode, Alarm Clock, handwriting recognition, PS4 Remote Play | Infrared remote control, MIMO technology, MU-MIMO technology, MI Turbo, GAME Turbo |
| OTHERS | Sony XPERIA X | Xiaomi MI 9 |
|---|
| Included Accessories | Power adapter | Protective cover, SIM card removal tool, USB-C cable, USB-C audio adapter, 18W QC3.0 charger | |
|---|---|---|---|
| Compliant Standards | HAC (Hearing Aid Compatible) | TUV Rheinland Certified Safe Fast-Charge System |
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