Side by side comparison and review of Samsung Galaxy Note8 DUOS 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 | Samsung Galaxy Note8 DUOS | Xiaomi MI 9 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | SM-N950F/DS | - | |
| Form Factor | Touch | Touch | |
| Height | 162.5 mm | 157.5 mm | Samsung Galaxy Note8 DUOS has greater height than Xiaomi MI 9. |
| Width | 74.8 mm | 74.67 mm | Samsung Galaxy Note8 DUOS has greater width than Xiaomi MI 9. |
| Depth | 8.6 mm | 7.61 mm | Xiaomi MI 9 is narrower than Samsung Galaxy Note8 DUOS. |
| Weight | 195 g | 173 g | Xiaomi MI 9 is lighter than Samsung Galaxy Note8 DUOS. |
| Body Colour | Midnight black | Ocean blue | Piano black | |
| Body Material | - | Curved glass | |
| Protection | Dustproof, splashproof, waterproof | - | |
| Waterproof (Water-resistant) | Yes | - | Samsung Galaxy Note8 DUOS is waterproof. |
| IP rating | IP68 | - | |
| SAR Value | 1.29 W/kg (body), 0.173 W/kg (head) | 1.301 W/kg (body), 1.389 W/kg (head) | |
| Integrated Components | Heart rate sensor | - | |
| 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 | Samsung Galaxy Note8 DUOS | Xiaomi MI 9 |
|---|
| Display Type | OLED display | OLED display | |
|---|---|---|---|
| Display Technology | Quad HD+ Super AMOLED | AMOLED | |
| Screen Size (Display Size) | 6.3" | 6.39" | Xiaomi MI 9 has larger screen size than Samsung Galaxy Note8 DUOS. |
| Screen Resolution (Display Resolution) | 2960 x 1440 pixels | 2340 x 1080 pixels | Samsung Galaxy Note8 DUOS has better screen resolution than Xiaomi MI 9. |
| Display Format | - | Full HD+ | |
| Pixel Density | 521 ppi | 403 ppi | Samsung Galaxy Note8 DUOS has better pixel density than Xiaomi MI 9. |
| 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 | - | Sunshine mode 2.0 | |
| Display Features | Always-on display | Always-on display, Reading mode, Colour temperature adjustment, night mode, Wide Colour Gamut (WCG) | |
| Display Protection (Screen Protector) | - | Fingerprint-resistant coating, Corning Gorilla Glass 6 (scratch resistant glass), oil protective coating |
| PROCESSOR | Samsung Galaxy Note8 DUOS | Xiaomi MI 9 |
|---|
| Processor Type (CPU) | Samsung Exynos | Qualcomm Snapdragon 855 | |
|---|---|---|---|
| Processor Number | 8895 | - | |
| Clock Speed | 2.3 GHz | 2.84 GHz | Xiaomi MI 9 has higher clock speed than Samsung Galaxy Note8 DUOS. |
| 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) | Mali-G71 MP20 | Qualcomm ADRENO 640 |
| MEMORY | Samsung Galaxy Note8 DUOS | Xiaomi MI 9 |
|---|
| RAM | LPDDR4 SDRAM - 6 GB | LPDDR4X SDRAM - 6 GB | Both phones have the same RAM size. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 64 GB | Both phones have the same internal memory capacity. |
| User Memory | 51.2 GB | - | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 256 GB | - |
| CAMERA | Samsung Galaxy Note8 DUOS | Xiaomi MI 9 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 3 | |
|---|---|---|---|
| Sensor Resolution | 12 Megapixel | 48 Megapixel | Xiaomi MI 9 has better camera resolution than Samsung Galaxy Note8 DUOS. |
| Sensor Size | 1/2.55" | - | |
| Sensor Name | - | Sony Exmor RS IMX586 sensor | |
| Lens Type | Wide-angle lens | Ultra wide-angle lens | |
| Lens Aperture | F/1.7 | F/1.75 | Samsung Galaxy Note8 DUOS has better lens aperture than Samsung Galaxy Note8 DUOS. |
| Lens Construction | 6-element | - | |
| Pixel Size | - | 0.8 μm | |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | - | Samsung Galaxy Note8 DUOS has optical stabilisation. |
| Focus Adjustment | Automatic, manual | Automatic | |
| Laser Auto Focus | - | Yes | |
| Optical Zoom | 2x | 2x | Both phones have the same optical zoom. |
| Digital Zoom | 10x | 10x | Both phones have the same digital zoom. |
| Self-Timer Delay | Yes | - | |
| Special Effects | Motion effect, HDR, Stamp, Bokeh effect, Grid Line, Stickers | HDR | |
| Camera Modes | Panorama, Slow motion mode, Pro mode, Timer mode, Virtual Shot, HYPERLAPSE, Food 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 detection | Face recognition | Both phones have face detection. |
| White Balance | Custom, automatic | - | |
| Light Source | LED light | 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 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 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) | Selective Focus, Quick Launch, Playback zoom, Tracking Focus, Dual Pixel technology, Motion photo, Exposure, Shutter speed, geotagging, RAW image capture, VDIS (Video Digital Image Stabilisation) | 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 | 12 Megapixel | Both phones have the same second camera resolution. |
|---|---|---|---|
| Lens Type (2nd Camera) | Telephoto lens | Telephoto lens | |
| Lens Aperture (2nd Camera) | F/2.4 | F/2.2 | Xiaomi MI 9 has better second camera lens aperture than Samsung Galaxy Note8 DUOS. |
| 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 Samsung Galaxy Note8 DUOS. |
| Sensor Size (Front) | 1/3.6" | - | |
| Sensor Type (Front) | CMOS | - | |
| Lens Type (Front) | Wide-angle lens | - | |
| Lens Aperture (Front) | F/1.7 | F/2.0 | Samsung Galaxy Note8 DUOS has better front lens aperture than Samsung Galaxy Note8 DUOS. |
| Pixel Size (Front) | - | 0.9 μm | |
| Focus Adjustment | Automatic | - | |
| Special Effects (Front) | - | HDR, Magic mirror | |
| Camera Modes (Front) | Wide selfie mode | 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 | |
| Camera Features (Front) | Optical Image Stabilisation (OIS) | Self-timer, age recognition, Video Beautify, AI scene detection, AI studio lighting, Eye light, AI feature adjustment, AI lens flare |
| BATTERY AND CHARGING | Samsung Galaxy Note8 DUOS | Xiaomi MI 9 |
|---|
| Battery Capacity (Battery Size) | 3300 mAh | 3300 mAh | Both phones have the same battery capacity. |
|---|---|---|---|
| Fast Charging Technology | - | Qualcomm Quick Charge 4.0+ | Xiaomi MI 9 has fast charging technology. |
| Wireless Charging | Yes | - | Samsung Galaxy Note8 DUOS can be charged wirelessly. |
| Wireless Charging Standards | WPC, PMA | WPC, Qi | |
| Talk Time | 1320 minutes | - | |
| Run Time Details | Talk (3G): up to 1320 min Active online usage (3G): up to 12 hrs Active online usage (4G): up to 13 hrs Active online usage (Wi-Fi): up to 14 hrs Playback (audio (Always On Display On)): up to 47 hrs Playback (audio (Always On Display Off)): up to 74 hrs Playback (video): up to 16 hrs |
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| CELLULAR | Samsung Galaxy Note8 DUOS | Xiaomi MI 9 |
|---|
| Technology | TD-SCDMA / 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 | Bixby | Google Assistant | |
| Payment Technology | Samsung Pay | Android Pay | |
| Navigation | GPS, GLONASS, BeiDou, Galileo | GPS, A-GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Samsung Galaxy Note8 DUOS | Xiaomi MI 9 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-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 | 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 13, Band 17, Band 18, Band 19, Band 20, Band 25, Band 26, Band 28, Band 32, Band 38, Band 39, Band 40, Band 41, Band 66 | 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 700c, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 1900+, FDD 850+, FDD 700 APT, FDD 1500 L, TDD 2600, TDD 1900, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | 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, ANT+/ANT | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 5.0 LE | 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 | Samsung Galaxy Note8 DUOS | Xiaomi MI 9 |
|---|
| Supported Digital Audio Standards | WAV, WMA, PCM, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, apt-X, DSF, DSD, MXMF, IMY, RTTTL, RTX, OTA, DFF, MID | WAV, AAC, AMR, MP3, FLAC, apt-X, LDAC, apt-X HD | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, FLV, AVI, MPEG-4, WMV, ASF, 3GP, M4V, WebM, 3G2 | MKV, VC-1, XviD, MPEG-4, H.264, M4V, HEVC, VP8, VP9 | |
| Sound Enhancements | Acoustic Overload Point | Qualcomm TrueWireless Stereo Plus |
| FEATURES | Samsung Galaxy Note8 DUOS | Xiaomi MI 9 |
|---|
| 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, proximity sensor, barometer, gyro sensor, hall sensor, RGB sensor, heart rate, pressure sensor, geomagnetic sensor | Accelerometer, ambient light sensor, digital compass, gyro sensor, ultrasonic proximity sensor, linear rotation vector sensor | |
| Security Devices | Fingerprint reader, eye scan | Fingerprint reader (under display) | |
| Additional Phone Features | Face Unlock, Wi-Fi Miracast, MU-MIMO technology, Fast Charging, Samsung KNOX | Infrared remote control, MIMO technology, MU-MIMO technology, MI Turbo, GAME Turbo |
| OTHERS | Samsung Galaxy Note8 DUOS | Xiaomi MI 9 |
|---|
| Included Accessories | Power adapter, tweezer, SIM card removal tool, USB Connector (USB-C), micro-USB connector, AKG headphones, USB-C cable, S Pen, Pen nibs | Protective cover, SIM card removal tool, USB-C cable, USB-C audio adapter, 18W QC3.0 charger | |
|---|---|---|---|
| Compliant Standards | IP68, HAC (Hearing Aid Compatible) | TUV Rheinland Certified Safe Fast-Charge System |
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