In depth comparison and review of Samsung Galaxy Note9 Unlocked and Xiaomi MI A2. 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 | Samsung Galaxy Note9 Unlocked | Xiaomi MI A2 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | SM-N960U1 | - | |
| Form Factor | Touch | Touch | |
| Height | 161.9 mm | 158.7 mm | Samsung Galaxy Note9 Unlocked has greater height than Xiaomi MI A2. |
| Width | 76.4 mm | 75.4 mm | Samsung Galaxy Note9 Unlocked has greater width than Xiaomi MI A2. |
| Depth | 8.8 mm | 7.3 mm | Xiaomi MI A2 is narrower than Samsung Galaxy Note9 Unlocked. |
| Weight | 201 g | 168 g | Xiaomi MI A2 is lighter than Samsung Galaxy Note9 Unlocked. |
| Body Colour | Ocean blue | Black | Lake blue | Gold | |
| Body Material | - | Metal | |
| Protection | Dustproof, splashproof, waterproof | - | |
| Waterproof (Water-resistant) | Yes | - | Samsung Galaxy Note9 Unlocked is waterproof. |
| IP rating | IP68 | - | |
| SAR Value | 1.59 W/kg (simultaneous), 1.39 W/kg (wireless router), 1.03 W/kg (body), 1.29 W/kg (head) | 0.639 W/kg (body), 0.963 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 | Single-SIM | Dual-SIM |
| DISPLAY | Samsung Galaxy Note9 Unlocked | Xiaomi MI A2 |
|---|
| Display Type | OLED display | LCD display | |
|---|---|---|---|
| Display Technology | Quad HD+ Super AMOLED | IPS | |
| Screen Size (Display Size) | 6.4" | 5.99" | Samsung Galaxy Note9 Unlocked has larger screen size than Xiaomi MI A2. |
| Screen Resolution (Display Resolution) | 2960 x 1440 pixels | 2160 x 1080 pixels | Samsung Galaxy Note9 Unlocked has better screen resolution than Xiaomi MI A2. |
| Display Format | QHD+ | Full HD+ | |
| Pixel Density | 516 ppi | 403 ppi | Samsung Galaxy Note9 Unlocked has better pixel density than Xiaomi MI A2. |
| Aspect Ratio | - | 18:9 | |
| Colour Depth | 16.7 million colours | - | |
| Contrast Ratio | - | 1500:1 | |
| Display Features | Always-on display, Edge Screen, Infinity Display, Edge-to-Edge screen | 2.5D curved glass | |
| Display Protection (Screen Protector) | - | Corning Gorilla Glass 5 (scratch resistant glass) |
| PROCESSOR | Samsung Galaxy Note9 Unlocked | Xiaomi MI A2 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 845 | Qualcomm Snapdragon 660 | |
|---|---|---|---|
| Clock Speed | 2.8 GHz | 2.2 GHz | Samsung Galaxy Note9 Unlocked has higher clock speed than Xiaomi MI A2. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | - | Samsung Galaxy Note9 Unlocked has 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 630 | - |
| MEMORY | Samsung Galaxy Note9 Unlocked | Xiaomi MI A2 |
|---|
| RAM | LPDDR4 SDRAM - 8 GB | 4 GB | Samsung Galaxy Note9 Unlocked has more RAM than Xiaomi MI A2. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 512 GB | 32 GB | Samsung Galaxy Note9 Unlocked has more internal memory than Xiaomi MI A2. |
| User Memory | 463.4 GB | - | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 512 GB | - |
| CAMERA | Samsung Galaxy Note9 Unlocked | Xiaomi MI A2 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 2 | |
|---|---|---|---|
| Sensor Resolution | 12 Megapixel | 20 Megapixel | Xiaomi MI A2 has better camera resolution than Samsung Galaxy Note9 Unlocked. |
| Sensor Size | 1/2.55" | 1/2.8" | Xiaomi MI A2 has better camera sensor size than Samsung Galaxy Note9 Unlocked. |
| Sensor Name | - | Sony Exmor RS IMX376 sensor | |
| Lens Type | Wide-angle lens | - | |
| Lens Aperture | F/1.5 & f/2.4 | F/1.75 | Samsung Galaxy Note9 Unlocked has better lens aperture than Samsung Galaxy Note9 Unlocked. |
| Optical Image Stabiliser (OIS) | Dual OIS (Optical Image Stabilisation) | - | Samsung Galaxy Note9 Unlocked has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Optical Zoom | 2x | - | |
| Digital Zoom | 10x | - | |
| Special Effects | HDR, Bokeh effect, Grid Line | HDR, Beautify 4.0 | |
| Camera Modes | Panorama, Pro mode, Timer mode, HYPERLAPSE, Auto mode, Food mode, Super Slow-mo, AR Emoji, Portraits, Flowers, Indoor scenes, Animals, Landscapes, Greenery, Trees, Sky, Mountains, Beaches, Sunrises and sunsets, Watersides, Street scenes, Night scenes, Waterfalls, Snow, Birds, Backlit, Text, Disney AR Emoji | Burst mode, Panorama, portrait mode, AI portrait mode, group selfi mode, AI Beauty | |
| Face Recognition (Face ID) | Face detection | Face recognition | Both phones have face detection. |
| Light Source | LED flash | LED light | |
| Video Resolutions | 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, 3840 x 2160 (4K) at 60 fps, Super slow motion video 1280 x 720 (720p) at 960 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps, 2560 x 1440 (QHD) at 30 fps | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, 3840 x 2160 (4K) at 30 fps, Slo-mo video 1280 x 720 (720p) at 120 fps, 720 x 480 (480p) at 30 fps | |
| Camera Features (Functions) | Quick Launch, Playback zoom, Motion photo, VDIS (Video Digital Image Stabilisation), Live Focus, Dual Capture, High CRI LED flash, Tracking AF, Video location tags, Stamps, location tags, Continuous autofocus video, Hyperlapse video support 1080p, Live focus with bokeh filters, Super Speed Dual Pixel, background blur, Scene Optimiser, Eye blink, Motion blur, Lens smudge, Backlit, Full view, Flaw detection, 9.1MP still photos recording 4K video | Phase Detect Auto-Focus (PDAF), AI Dual camera, 4-in-1 Super Pixel |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 12 Megapixel | 12 Megapixel | Both phones have the same second camera resolution. |
|---|---|---|---|
| Sensor Size (2nd Camera) | 1/3.4" | 1/2.9" | Samsung Galaxy Note9 Unlocked has better second camera sensor size than Xiaomi MI A2. |
| Sensor Name (2nd Camera) | - | Sony Exmor RS IMX486 sensor | |
| Lens Type (2nd Camera) | Telephoto lens | - | |
| Lens Aperture (2nd Camera) | F/2.4 | F/1.75 | Xiaomi MI A2 has better second camera lens aperture than Samsung Galaxy Note9 Unlocked. |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 8 Megapixel | 20 Megapixel | Xiaomi MI A2 has better front camera resolution than Samsung Galaxy Note9 Unlocked. |
| Sensor Size (Front) | 1/3.6" | - | |
| Sensor Name (Front) | - | Sony Exmor RS IMX376 sensor | |
| Lens Type (Front) | Wide-angle lens | - | |
| Lens Aperture (Front) | F/1.7 | F/2.2 | Samsung Galaxy Note9 Unlocked has better front lens aperture than Samsung Galaxy Note9 Unlocked. |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects (Front) | HDR, Grid Line | - | |
| Camera Modes (Front) | Timer mode, wide selfie mode, selfie mode, AR Emoji, selfie focus | - | |
| Face Recognition (Face ID) | - | Face recognition | Xiaomi MI A2 has face detection. |
| Camera Features (Front) | Quick launch, Motion photo, Stamps, location tags, VDIS (Video Digital Image Stabilization), Full view, Flaw detection | AI-powered portrait mode |
| BATTERY AND CHARGING | Samsung Galaxy Note9 Unlocked | Xiaomi MI A2 |
|---|
| Battery Capacity (Battery Size) | 4000 mAh | 3010 mAh | Samsung Galaxy Note9 Unlocked has larger battery capacity than Xiaomi MI A2. |
|---|---|---|---|
| Fast Charging Technology | - | Qualcomm Quick Charge 3.0 | Xiaomi MI A2 has fast charging technology. |
| Wireless Charging | Yes | - | Samsung Galaxy Note9 Unlocked can be charged wirelessly. |
| Wireless Charging Standards | WPC, PMA | - | |
| Talk Time | 2280 minutes | - | |
| Run Time Details | Talk (CDMA): up to 2280 min Active online usage (3G): up to 15 hrs Active online usage (LTE): up to 16 hrs Active online usage (Wi-Fi): up to 16 hrs Playback (audio): up to 60 hrs Playback (audio (Always On Display Off)): up to 95 hrs Playback (video): up to 21 hrs Talk (WCDMA): up to 2280 min |
- | |
| Battery Technology | - | Lithium Ion |
| CELLULAR | Samsung Galaxy Note9 Unlocked | Xiaomi MI A2 |
|---|
| 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 One | |
| Intelligent Assistant | Bixby | Google Assistant | |
| Payment Technology | Samsung Pay | - | |
| Navigation | GPS, GLONASS | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | Samsung Galaxy Note9 Unlocked | Xiaomi MI A2 |
|---|
| Data Transmission | GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-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 | 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 14, Band 17, Band 18, Band 19, Band 20, Band 25, Band 26, Band 28, Band 29, Band 30, Band 38, Band 39, Band 40, Band 41, Band 46, Band 66, Band 71 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 38, 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 700 PS, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 1900+, FDD 850+, FDD 700 APT, FDD 700d, FDD 2300 WCS, TDD 2600, TDD 1900, TDD 2300, TDD 2500, TDD 5150, FDD 1700 - 2110 AWS-3, FDD 600 | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 800 DD, TDD 2600, TDD 2300 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac, ANT+/ANT | Infrared (IrDA), IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 5.0 LE | Bluetooth 5.0 | |
| NFC | Yes | - | Samsung Galaxy Note9 Unlocked has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Samsung Galaxy Note9 Unlocked | Xiaomi MI A2 |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, PCM, AMR, MP3, FLAC, XMF, OGG, MIDI, APE (Monkey's Audio), M4A, apt-X, DSF, DSD, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, DFF, MID, DSD64, DSD128 | WAV, AAC, PCM, MP3, FLAC, AAC +, eAAC+, MIDI, MP4, AMR-WB, AMR-NB | |
|---|---|---|---|
| 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, H.265, ASP | |
| Sound Enhancements | Dolby Digital Plus sound, Dolby Atmos sound technology, Acoustic Overload Point, stereo speakers tuned by AKG, Dolby Digital sound | - |
| FEATURES | Samsung Galaxy Note9 Unlocked | Xiaomi MI A2 |
|---|
| 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, pressure sensor, geomagnetic sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor, hall sensor, vibration sensor | |
| Security Devices | Face recognition, fingerprint reader, eye scan | Fingerprint reader | |
| Additional Phone Features | S Pen multi-input, Face Unlock, Wi-Fi Miracast, Screen Write, Smart Select, MU-MIMO technology, Fast Charging, Samsung KNOX, Face recognition, High AOP Mic, Smart View, Live message, Screen off memo, Samsung DeX support, Bixby Vision, Smart Performance Adjuster, Dual Audio, water-carbon cooling system, S Pen remote function | Wi-Fi Miracast, AI Engine |
| OTHERS | Samsung Galaxy Note9 Unlocked | Xiaomi MI A2 |
|---|
| Included Accessories | Power adapter, tweezer, SIM card removal tool, USB connector, USB-C cable, S Pen, Pen nibs, headset (tuned by AKG) | USB cable, power adapter, SIM card removal tool, clear soft case, Type-C to audio converter | |
|---|---|---|---|
| Compliant Standards | IP68 | - | |
| Max Depth of Water Resistance | 1.5 m | - |
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