Side by side comparison and review of bq Aquaris X and Xiaomi MI 9. 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 | bq Aquaris X | Xiaomi MI 9 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 146.5 mm | 157.5 mm | Xiaomi MI 9 has greater height than bq Aquaris X. |
| Width | 72.7 mm | 74.67 mm | Xiaomi MI 9 has greater width than bq Aquaris X. |
| Depth | 7.9 mm | 7.61 mm | Xiaomi MI 9 is narrower than bq Aquaris X. |
| Weight | 153 g | 173 g | bq Aquaris X is lighter than bq Aquaris X. |
| Body Colour | Midnight blue | Ocean blue | Piano black | |
| Body Material | Anodised aluminium | Curved glass | |
| Protection | Dustproof, splashproof | - | |
| Waterproof (Water-resistant) | - | - | |
| IP rating | IP52 | - | |
| SAR Value | 1.36 W/kg (body), 0.428 W/kg (head) | 1.301 W/kg (body), 1.389 W/kg (head) | |
| Integrated Components | FM radio | - | |
| Connector Type | USB Type-C - 24 pin USB-C 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 (SIM1 and SIM2/MicroSD slots) | Dual-SIM | |
| SIM Card Configuration Details | Nano SIM + nano SIM/microSD | - |
| DISPLAY | bq Aquaris X | Xiaomi MI 9 |
|---|
| Display Type | LCD display | OLED display | |
|---|---|---|---|
| Display Technology | LTPS IPS | AMOLED | |
| Screen Size (Display Size) | 5.2" | 6.39" | Xiaomi MI 9 has larger screen size than bq Aquaris X. |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 2340 x 1080 pixels | Xiaomi MI 9 has better screen resolution than bq Aquaris X. |
| Display Format | Full HD | Full HD+ | |
| Pixel Density | 423 ppi | 403 ppi | bq Aquaris X has better pixel density than Xiaomi MI 9. |
| Max Brightness | 650 cd/m² | 600 cd/m² | bq Aquaris X has better display brightness than Xiaomi MI 9. |
| Contrast Ratio | - | 60000:1 | |
| HDR | - | Yes | Xiaomi MI 9 has HDR. |
| HDR Technology | - | HDR10 | |
| Display Enhancement Technology | - | Sunshine mode 2.0 | |
| Display Features | In-Cell Display Technology, Quantum Color +, 2.5D Glass, AF coating | Always-on display, Reading mode, Colour temperature adjustment, night mode, Wide Colour Gamut (WCG) | |
| Display Protection (Screen Protector) | Dinorex Glass (scratch resistant glass) | Fingerprint-resistant coating, Corning Gorilla Glass 6 (scratch resistant glass), oil protective coating |
| PROCESSOR | bq Aquaris X | Xiaomi MI 9 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 626 | Qualcomm Snapdragon 855 | |
|---|---|---|---|
| Processor Number | MSM8953 PRO | - | |
| Clock Speed | 2.2 GHz | 2.84 GHz | Xiaomi MI 9 has higher clock speed than bq Aquaris X. |
| 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 506 | Qualcomm ADRENO 640 |
| MEMORY | bq Aquaris X | Xiaomi MI 9 |
|---|
| RAM | 3 GB | LPDDR4X SDRAM - 6 GB | Xiaomi MI 9 has more RAM than bq Aquaris X. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 64 GB | Xiaomi MI 9 has more internal memory than bq Aquaris X. |
| User Memory | 24 GB | - | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 256 GB | - |
| CAMERA | bq Aquaris X | Xiaomi MI 9 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 3 | |
|---|---|---|---|
| Sensor Resolution | 16 Megapixel | 48 Megapixel | Xiaomi MI 9 has better camera resolution than bq Aquaris X. |
| Sensor Name | Sony Exmor RS IMX298 sensor | Sony Exmor RS IMX586 sensor | |
| Lens Type | - | Ultra wide-angle lens | |
| Lens Aperture | F/2.0 | F/1.75 | Xiaomi MI 9 has better lens aperture than bq Aquaris X. |
| Lens Construction | 6-element | - | |
| Pixel Size | - | 0.8 μm | |
| Focus Adjustment | Automatic | Automatic | |
| Laser Auto Focus | - | Yes | |
| Optical Zoom | - | 2x | |
| Digital Zoom | - | 10x | |
| Special Effects | - | HDR | |
| HDR Mode | Auto HDR mode | - | |
| Camera Modes | Burst mode, panoramic pictures, Time-lapse mode, night mode, Fast Motion mode, manual mode, RAW mode | 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 recognition | Xiaomi MI 9 has face detection. |
| Light Source | LED flash | Dual flash | |
| Still Image Resolutions | - | 8000 x 6000 | |
| Video Resolutions | 3840 x 2160 (4K) at 30 fps, Slo-mo video 1280 x 720 (720p) at 120 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) | Zero Shutter Lag, Phase Detect Auto-Focus (PDAF), Largan lens, video image stabilisation, Dual-tone Flash | 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) | 8 Megapixel | 20 Megapixel | Xiaomi MI 9 has better front camera resolution than bq Aquaris X. |
| Sensor Name (Front) | Samsung S5K4H8YX | - | |
| Lens Aperture (Front) | F/2.0 | F/2.0 | Both phones have the same front camera lens aperture. |
| Lens Element Qty (Front) | 3-element | - | |
| Pixel Size (Front) | - | 0.9 μm | |
| Special Effects (Front) | Beauty face | 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. |
| Light Source (Front) | Flash | - | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) at 60 fps | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Front) | Selfie Indicator | Self-timer, age recognition, Video Beautify, AI scene detection, AI studio lighting, Eye light, AI feature adjustment, AI lens flare |
| BATTERY AND CHARGING | bq Aquaris X | Xiaomi MI 9 |
|---|
| Battery Capacity (Battery Size) | 3100 mAh | 3300 mAh | Xiaomi MI 9 has larger battery capacity than bq Aquaris X. |
|---|---|---|---|
| Fast Charging Technology | Qualcomm Quick Charge 3.0 | Qualcomm Quick Charge 4.0+ | Both phones have fast charging technology. |
| Wireless Charging Standards | - | WPC, Qi |
| CELLULAR | bq Aquaris 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 7.1.1 Nougat | - | |
| User Interface | - | MIUI 10 | |
| Intelligent Assistant | - | Google Assistant | |
| Payment Technology | - | Android Pay | |
| Navigation | GPS, GLONASS, Galileo | GPS, A-GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | bq Aquaris X | Xiaomi MI 9 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-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 5, Band 8 | Band 1, Band 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 850, 900 | 2100, 1900, 1700, 850, 900 | |
| 4G LTE Band | Band 1, Band 3, Band 7, Band 20 | 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 1800+, FDD 2600, FDD 800 DD | 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 802.11b/g/n/ac | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 4.2 | 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 | bq Aquaris X | Xiaomi MI 9 |
|---|
| Supported Digital Audio Standards | WAV, AAC, MP3, FLAC, AAC +, OGG, QCP, eAAC+, MIDI, APE (Monkey's Audio), M4A, apt-X, AWB, ALAC, MID, WMA STD, DTS M8 | WAV, AAC, AMR, MP3, FLAC, apt-X, LDAC, apt-X HD | |
|---|---|---|---|
| Supported Digital Video Standards | - | MKV, VC-1, XviD, MPEG-4, H.264, M4V, HEVC, VP8, VP9 | |
| Sound Enhancements | Hi-Fi Sound support | Qualcomm TrueWireless Stereo Plus |
| FEATURES | bq Aquaris 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, digital compass, gyro sensor, hall 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 | Dual noise reduction microphones, NXP Smart AMP technology, Wi-Fi Assist | Infrared remote control, MIMO technology, MU-MIMO technology, MI Turbo, GAME Turbo |
| OTHERS | bq Aquaris X | Xiaomi MI 9 |
|---|
| Included Accessories | Power adapter, USB 2.0 Type C-A cable | Protective cover, SIM card removal tool, USB-C cable, USB-C audio adapter, 18W QC3.0 charger | |
|---|---|---|---|
| Compliant Standards | IP52 | TUV Rheinland Certified Safe Fast-Charge System |
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