Side by side comparison and review of Xiaomi MI 9 and Google Pixel 3a. Compare sizes, cameras, batteries, memory capacities and other key specifications and features to simplify the choice of your perfect phone. Our goal is to make it easier for you to decide on the phone that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | Xiaomi MI 9 | Google Pixel 3a |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | G020F | |
| Form Factor | Touch | Touch | |
| Height | 157.5 mm | 151.3 mm | Xiaomi MI 9 has greater height than Google Pixel 3a. |
| Width | 74.67 mm | 70.1 mm | Xiaomi MI 9 has greater width than Google Pixel 3a. |
| Depth | 7.61 mm | 8.2 mm | Xiaomi MI 9 is narrower than Xiaomi MI 9. |
| Weight | 173 g | 147 g | Google Pixel 3a is lighter than Xiaomi MI 9. |
| Body Colour | Ocean blue | Piano black | Clearly white | Purple-ish | Just black | |
| Body Material | Curved glass | Polycarbonate | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.301 W/kg (body), 1.389 W/kg (head) | 1.55 W/kg (body), 1.38 W/kg (head) | |
| Connector Type | USB Type-C - 24 pin USB-C | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM, Electronic SIM card (e-SIM) | |
| SIM Card Qty | Dual-SIM | Single-SIM |
| DISPLAY | Xiaomi MI 9 | Google Pixel 3a |
|---|
| Display Type | OLED display | OLED display | |
|---|---|---|---|
| Display Technology | AMOLED | OLED | |
| Screen Size (Display Size) | 6.39" | 5.6" | Xiaomi MI 9 has larger screen size than Google Pixel 3a. |
| Screen Resolution (Display Resolution) | 2340 x 1080 pixels | 2220 x 1080 pixels | Xiaomi MI 9 has better screen resolution than Google Pixel 3a. |
| Display Format | Full HD+ | Full HD+ | |
| Pixel Density | 403 ppi | 441 ppi | Google Pixel 3a has better pixel density than Xiaomi MI 9. |
| Aspect Ratio | - | 18:9 | |
| Max Brightness | 600 cd/m² | - | |
| Colour Depth | - | 16.7 million colours | |
| Contrast Ratio | 60000:1 | 100000:1 | Google Pixel 3a has better display contrast ratio than Xiaomi MI 9. |
| HDR | Yes | - | Xiaomi MI 9 has HDR. |
| HDR Technology | HDR10 | - | |
| Display Enhancement Technology | Sunshine mode 2.0 | - | |
| Display Features | Always-on display, Reading mode, Colour temperature adjustment, night mode, Wide Colour Gamut (WCG) | Always-on display, Now Playing | |
| Display Protection (Screen Protector) | Fingerprint-resistant coating, Corning Gorilla Glass 6 (scratch resistant glass), oil protective coating | - |
| PROCESSOR | Xiaomi MI 9 | Google Pixel 3a |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 855 | Qualcomm Snapdragon 670 | |
|---|---|---|---|
| Clock Speed | 2.84 GHz | 2 GHz | Xiaomi MI 9 has higher clock speed than Google Pixel 3a. |
| 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 640 | Qualcomm ADRENO 615 |
| MEMORY | Xiaomi MI 9 | Google Pixel 3a |
|---|
| RAM | LPDDR4X SDRAM - 6 GB | LPDDR4X SDRAM - 4 GB | Xiaomi MI 9 has more RAM than Google Pixel 3a. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 64 GB | Both phones have the same internal memory capacity. |
| CAMERA | Xiaomi MI 9 | Google Pixel 3a |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 3 | 1 | |
|---|---|---|---|
| Sensor Resolution | 48 Megapixel | 12.2 Megapixel | Xiaomi MI 9 has better camera resolution than Google Pixel 3a. |
| Sensor Name | Sony Exmor RS IMX586 sensor | - | |
| Lens Type | Ultra wide-angle lens | - | |
| Lens Aperture | F/1.75 | F/1.8 | Xiaomi MI 9 has better lens aperture than Xiaomi MI 9. |
| Field of View (FoV) | - | 76 degree(s) | |
| Pixel Size | 0.8 μm | 1.4 μm | Google Pixel 3a has larger camera pixel size than Xiaomi MI 9. |
| Optical Image Stabiliser (OIS) | - | Optical Image Stabiliser (OIS) | Google Pixel 3a has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Laser Auto Focus | Yes | - | |
| Optical Zoom | 2x | - | |
| Digital Zoom | 10x | - | |
| Special Effects | 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 | Portrait mode | |
| Face Recognition (Face ID) | Face recognition | - | Xiaomi MI 9 has face detection. |
| Light Source | 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, 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 | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, 3840 x 2160 (4K) at 30 fps, 1280 x 720 (720p) at 60 fps, 1920 x 1080 (1080p) at 120 fps, 1280 x 720 (720p) at 240 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 | Electronic Image Stabiliser (EIS), dual pixel phase detection, Motion Auto Focus |
| 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) | 20 Megapixel | 8 Megapixel | Xiaomi MI 9 has better front camera resolution than Google Pixel 3a. |
| Lens Aperture (Front) | F/2.0 | F/2.0 | Both phones have the same front camera lens aperture. |
| Field of View (Front) | - | 84 degree(s) | |
| Pixel Size (Front) | 0.9 μm | 1.12 μm | Google Pixel 3a has larger front camera pixel size than Xiaomi MI 9. |
| Focus Adjustment | - | Focus free | |
| 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) at 30 fps, 1280 x 720 (720p) at 30 fps | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, 640 x 480 (VGA) 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 | Xiaomi MI 9 | Google Pixel 3a |
|---|
| Battery Capacity (Battery Size) | 3300 mAh | 3000 mAh | Xiaomi MI 9 has larger battery capacity than Google Pixel 3a. |
|---|---|---|---|
| Fast Charging Technology | Qualcomm Quick Charge 4.0+ | - | Xiaomi MI 9 has fast charging technology. |
| Wireless Charging Standards | WPC, Qi | - |
| CELLULAR | Xiaomi MI 9 | Google Pixel 3a |
|---|
| Technology | CDMA2000 1X / GSM / WCDMA (UMTS) / TD-SCDMA | CDMA2000 1X / GSM / WCDMA (UMTS) | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | - | Android 9.0 Pie | |
| User Interface | MIUI 10 | - | |
| Intelligent Assistant | Google Assistant | Google Assistant | |
| Payment Technology | Android Pay | - | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou, Galileo | GPS, GLONASS, Galileo, QZSS |
| COMMUNICATIONS | Xiaomi MI 9 | Google Pixel 3a |
|---|
| Data Transmission | GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE | GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | - | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM, 800 CDMA2000 1X, 1900 CDMA2000 1X | |
| 3G UMTS Band | Band 1, Band 2, Band 4, Band 5, Band 8 | Band 1, Band 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 900 | 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 20, Band 28, Band 38, Band 39, Band 40 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 17, Band 20, Band 25, Band 26, Band 28, Band 32, Band 38, Band 40, Band 41, Band 66 | |
| 4G LTE Frequency | 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 | 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 DD, FDD 1900+, FDD 850+, FDD 700 APT, FDD 1500 L, TDD 2600, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.0 LE | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| WLAN Security | WPA3 | - | |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Xiaomi MI 9 | Google Pixel 3a |
|---|
| Supported Digital Audio Standards | WAV, AAC, AMR, MP3, FLAC, apt-X, LDAC, apt-X HD | Apt-X, LDAC, apt-X HD | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, VC-1, XviD, MPEG-4, H.264, M4V, HEVC, VP8, VP9 | - | |
| Sound Enhancements | Qualcomm TrueWireless Stereo Plus | - |
| FEATURES | Xiaomi MI 9 | Google Pixel 3a |
|---|
| 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, digital compass, gyro sensor, ultrasonic proximity sensor, linear rotation vector sensor | Accelerometer, ambient light sensor, proximity sensor, barometer, magnetometer, gyro sensor, haptics sensor, Active Edge | |
| Security Devices | Fingerprint reader (under display) | Fingerprint reader | |
| Additional Phone Features | Infrared remote control, MIMO technology, MU-MIMO technology, MI Turbo, GAME Turbo | Dual microphones, MIMO technology, Android Sensor Hub, Noise suppression, Night Shift, ARCore, Google Lens, Titan M Security Module, Pixel Imprint sensor |
| OTHERS | Xiaomi MI 9 | Google Pixel 3a |
|---|
| Included Accessories | Protective cover, SIM card removal tool, USB-C cable, USB-C audio adapter, 18W QC3.0 charger | SIM card removal tool, Quick switch adapter, 18W USB-C power adapter, USB-C to USB-C cable (1 m) | |
|---|---|---|---|
| Compliant Standards | TUV Rheinland Certified Safe Fast-Charge System | - |
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