In depth comparison and review of Xiaomi MI 8 and Samsung Galaxy A9 (2018). 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 8 | Samsung Galaxy A9 (2018) |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | SM-A920F/DS | |
| Form Factor | Touch | Touch | |
| Height | 154.9 mm | 162.5 mm | Samsung Galaxy A9 (2018) has greater height than Xiaomi MI 8. |
| Width | 74.8 mm | 77 mm | Samsung Galaxy A9 (2018) has greater width than Xiaomi MI 8. |
| Depth | 7.6 mm | 7.8 mm | Xiaomi MI 8 is narrower than Xiaomi MI 8. |
| Weight | 175 g | 183 g | Xiaomi MI 8 is lighter than Xiaomi MI 8. |
| Body Colour | Black | Blue | Lemonade blue | Caviar black | Bubblegum pink | |
| Body Material | Glass, 7000 Series aluminium | - | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.662 W/kg (body), 0.701 W/kg (head) | 1.587 W/kg (body), 0.351 W/kg (head) | |
| Connector Type | USB Type-C - 24 pin USB-C | USB Type-C - 24 pin USB-C | |
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Single-SIM |
| DISPLAY | Xiaomi MI 8 | Samsung Galaxy A9 (2018) |
|---|
| Display Type | OLED display | OLED display | |
|---|---|---|---|
| Display Technology | AMOLED | Super AMOLED | |
| Screen Size (Display Size) | 6.21" | 6.3" | Samsung Galaxy A9 (2018) has larger screen size than Xiaomi MI 8. |
| Screen Resolution (Display Resolution) | 2248 x 1080 pixels | 2220 x 1080 pixels | Xiaomi MI 8 has better screen resolution than Samsung Galaxy A9 (2018). |
| Display Format | Full HD+ | Full HD+ | |
| Pixel Density | 402 ppi | - | |
| Aspect Ratio | 18.7:9 | - | |
| Max Brightness | 600 cd/m² | - | |
| Colour Depth | - | 16.7 million colours | |
| Contrast Ratio | 60000:1 | - | |
| Display Enhancement Technology | Sunlight mode | - | |
| Display Features | Always-on display, Reading mode, Colour temperature adjustment, DCI-P3 Wide colour gamut | Always-on display |
| PROCESSOR | Xiaomi MI 8 | Samsung Galaxy A9 (2018) |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 845 | Qualcomm Snapdragon 660 | |
|---|---|---|---|
| Clock Speed | 2.8 GHz | 2.2 GHz | Xiaomi MI 8 has higher clock speed than Samsung Galaxy A9 (2018). |
| 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 630 | - |
| MEMORY | Xiaomi MI 8 | Samsung Galaxy A9 (2018) |
|---|
| RAM | LPDDR4X SDRAM - 6 GB | 6 GB | Both phones have the same RAM size. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 128 GB | Samsung Galaxy A9 (2018) has more internal memory than Xiaomi MI 8. |
| Supported Flash Memory Cards (Expandable Memory) | - | microSDHC, microSDXC - up to 512 GB |
| CAMERA | Xiaomi MI 8 | Samsung Galaxy A9 (2018) |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 4 | |
|---|---|---|---|
| Sensor Resolution | 12 Megapixel | 24 Megapixel | Samsung Galaxy A9 (2018) has better camera resolution than Xiaomi MI 8. |
| Sensor Name | Sony Exmor RS IMX363 sensor | - | |
| Lens Type | Wide-angle lens | - | |
| Lens Aperture | F/1.8 | F/1.7 | Samsung Galaxy A9 (2018) has better lens aperture than Xiaomi MI 8. |
| Optical Image Stabiliser (OIS) | 4-axis OIS (Optical Image Stabilisation) | - | Xiaomi MI 8 has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | HDR | - | |
| Camera Modes | Burst mode, Panorama, portrait mode, AR Emoji, AI Beautify | - | |
| Face Recognition (Face ID) | Face recognition | - | Xiaomi MI 8 has face detection. |
| Light Source | LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps | - | |
| Camera Features (Functions) | Dual Pixel Autofocus technology, AI Dual camera, AI scene detection, AI Beautify, AI dynamic bokeh, AI studio lighting, AI short video editing, AI high-res photos | - |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 12 Megapixel | 8 Megapixel | Xiaomi MI 8 has better second camera resolution than Samsung Galaxy A9 (2018). |
|---|---|---|---|
| Lens Type (2nd Camera) | Telephoto lens | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | F/2.4 | F/2.4 | Both phones have the same second camera lens aperture. |
| Camera Features (2nd Camera) | Portrait lens | - |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 10 Megapixel | |
|---|---|---|---|
| Lens Type (3rd Camera) | - | Telephoto lens | |
| Lens Aperture (3rd Camera) | - | F/2.4 | |
| Optical Zoom | - | 2x |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | - | 5 Megapixel | |
|---|---|---|---|
| Lens Aperture (4th Camera) | - | F/2.2 |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 2 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 20 Megapixel | 24 Megapixel | Samsung Galaxy A9 (2018) has better front camera resolution than Xiaomi MI 8. |
| Lens Aperture (Front) | - | F/2.0 | |
| Special Effects (Front) | Mirror | - | |
| Camera Modes (Front) | AR Emoji, AI portrait mode | - | |
| Face Recognition (Face ID) | Face recognition | - | Xiaomi MI 8 has face detection. |
| Camera Features (Front) | Self-timer, AI detection of 10 different scenes, 3D Beautify | - |
| SECOND FRONT CAMERA |
|---|
| Camera Features (2nd Front) | Flood Illuminator, Dot Projector | - |
|---|
| BATTERY AND CHARGING | Xiaomi MI 8 | Samsung Galaxy A9 (2018) |
|---|
| Battery Capacity (Battery Size) | 3400 mAh | 3800 mAh | Samsung Galaxy A9 (2018) has larger battery capacity than Xiaomi MI 8. |
|---|---|---|---|
| Fast Charging Technology | Qualcomm Quick Charge 4.0+ | - | Xiaomi MI 8 has fast charging technology. |
| CELLULAR | Xiaomi MI 8 | Samsung Galaxy A9 (2018) |
|---|
| 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 | Android 8.1 Oreo | Android 8.0 Oreo | |
| User Interface | MIUI 9.5 | - | |
| Intelligent Assistant | - | Bixby | |
| Payment Technology | Android Pay | Samsung Pay | |
| Navigation | GPS, GLONASS, BeiDou, Galileo, QZSS | GPS, A-GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Xiaomi MI 8 | Samsung Galaxy A9 (2018) |
|---|
| Data Transmission | GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM, 800 CDMA2000 1X, 1900 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 7, Band 8, Band 12, Band 17, Band 20, Band 34, Band 38, Band 39, 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 700a, FDD 700b, FDD 800 DD, TDD 2000, TDD 2600, TDD 1900, TDD 2300, TDD 2500 | - | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac, ANT+/ANT | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.0 | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Xiaomi MI 8 | Samsung Galaxy A9 (2018) |
|---|
| Supported Digital Audio Standards | WAV, AAC, PCM, AMR, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), apt-X, AMR-WB, AMR-NB, apt-X HD | WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, XviD, MPEG-4, H.264, M4V, HEVC, H.265, ASP | MKV, FLV, AVI, MPEG-4, WMV, ASF, 3GP, M4V, WebM, 3G2 |
| FEATURES | Xiaomi MI 8 | Samsung Galaxy A9 (2018) |
|---|
| 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, proximity sensor, digital compass, barometer, gyro sensor, hall sensor, Time of Flight (ToF), infrared (IR) sensor | Accelerometer, proximity sensor, gyro sensor, hall sensor, RGB sensor, geomagnetic sensor | |
| Security Devices | Face recognition, fingerprint reader | Face recognition, fingerprint reader | |
| Security Technology | IR face unlock | - | |
| Additional Phone Features | Face Unlock, MU-MIMO technology | MIMO technology, Bixby Vision |
| OTHERS | Xiaomi MI 8 | Samsung Galaxy A9 (2018) |
|---|
| Included Accessories | Power adapter, SIM card removal tool, USB-C to 3.5 jack adapter, USB-C cable, Mi 8 Protective cover | Power adapter |
|---|
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