Side by side comparison and review of Xiaomi Redmi Note 4x and Samsung Galaxy Note9 Unlocked. 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 Redmi Note 4x | Samsung Galaxy Note9 Unlocked |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | SM-N960U1 | |
| Form Factor | Touch | Touch | |
| Height | 151 mm | 161.9 mm | Samsung Galaxy Note9 Unlocked has greater height than Xiaomi Redmi Note 4x. |
| Width | 76 mm | 76.4 mm | Samsung Galaxy Note9 Unlocked has greater width than Xiaomi Redmi Note 4x. |
| Depth | 8.45 mm | 8.8 mm | Xiaomi Redmi Note 4x is narrower than Xiaomi Redmi Note 4x. |
| Weight | 165 g | 201 g | Xiaomi Redmi Note 4x is lighter than Xiaomi Redmi Note 4x. |
| Body Colour | Platinum silver grey | Ocean blue | |
| Body Material | Metal | - | |
| Protection | - | Dustproof, splashproof, waterproof | |
| Waterproof (Water-resistant) | - | Yes | Samsung Galaxy Note9 Unlocked is waterproof. |
| IP rating | - | IP68 | |
| SAR Value | 0.674 W/kg (body), 0.724 W/kg (head) | 1.59 W/kg (simultaneous), 1.39 W/kg (wireless router), 1.03 W/kg (body), 1.29 W/kg (head) | |
| Integrated Components | - | Heart rate sensor | |
| Connector Type | Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Micro SIM, nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Single-SIM | |
| SIM Card Configuration Details | Micro SIM + nano SIM/microSD | - |
| DISPLAY | Xiaomi Redmi Note 4x | Samsung Galaxy Note9 Unlocked |
|---|
| Display Type | - | OLED display | |
|---|---|---|---|
| Display Technology | - | Quad HD+ Super AMOLED | |
| Screen Size (Display Size) | 5.5" | 6.4" | Samsung Galaxy Note9 Unlocked has larger screen size than Xiaomi Redmi Note 4x. |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 2960 x 1440 pixels | Samsung Galaxy Note9 Unlocked has better screen resolution than Xiaomi Redmi Note 4x. |
| Display Format | Full HD | QHD+ | |
| Pixel Density | 403 ppi | 516 ppi | Samsung Galaxy Note9 Unlocked has better pixel density than Xiaomi Redmi Note 4x. |
| Max Brightness | 450 cd/m² | - | |
| Colour Depth | - | 16.7 million colours | |
| Contrast Ratio | 1000:1 | - | |
| Display Features | 2.5D Glass, Eye protection mode, Colour temperature adjustment | Always-on display, Edge Screen, Infinity Display, Edge-to-Edge screen |
| PROCESSOR | Xiaomi Redmi Note 4x | Samsung Galaxy Note9 Unlocked |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 625 | Qualcomm Snapdragon 845 | |
|---|---|---|---|
| Clock Speed | 2 GHz | 2.8 GHz | Samsung Galaxy Note9 Unlocked has higher clock speed than Xiaomi Redmi Note 4x. |
| Processor Core Qty | - | 8-core | |
| 64-bit Architecture | - | Yes | Samsung Galaxy Note9 Unlocked has 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 506 | Qualcomm ADRENO 630 |
| MEMORY | Xiaomi Redmi Note 4x | Samsung Galaxy Note9 Unlocked |
|---|
| RAM | 3 GB | LPDDR4 SDRAM - 8 GB | Samsung Galaxy Note9 Unlocked has more RAM than Xiaomi Redmi Note 4x. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 512 GB | Samsung Galaxy Note9 Unlocked has more internal memory than Xiaomi Redmi Note 4x. |
| User Memory | - | 463.4 GB | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 128 GB | microSDHC, microSDXC - up to 512 GB |
| CAMERA | Xiaomi Redmi Note 4x | Samsung Galaxy Note9 Unlocked |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 2 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 12 Megapixel | Xiaomi Redmi Note 4x has better camera resolution than Samsung Galaxy Note9 Unlocked. |
| Sensor Size | - | 1/2.55" | |
| Lens Type | - | Wide-angle lens | |
| Lens Aperture | F/2.0 | F/1.5 & f/2.4 | Samsung Galaxy Note9 Unlocked has better lens aperture than Xiaomi Redmi Note 4x. |
| Lens Construction | 5-element | - | |
| 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 | HDR, Bokeh effect, Grid Line | |
| Camera Modes | Burst mode, Panorama, low-light shots | 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 | |
| Face Recognition (Face ID) | Face recognition | Face detection | Both phones have face detection. |
| Light Source | Dual LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p), 1280 x 720 (720p), 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, 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 | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF) | 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 |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 12 Megapixel | |
|---|---|---|---|
| Sensor Size (2nd Camera) | - | 1/3.4" | |
| Lens Type (2nd Camera) | - | Telephoto lens | |
| Lens Aperture (2nd Camera) | - | F/2.4 |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 5 Megapixel | 8 Megapixel | Samsung Galaxy Note9 Unlocked has better front camera resolution than Xiaomi Redmi Note 4x. |
| Sensor Size (Front) | - | 1/3.6" | |
| Lens Type (Front) | Wide-angle lens | Wide-angle lens | |
| Lens Aperture (Front) | F/2.0 | F/1.7 | Samsung Galaxy Note9 Unlocked has better front lens aperture than Xiaomi Redmi Note 4x. |
| Focus Adjustment | - | Automatic | |
| Special Effects (Front) | - | HDR, Grid Line | |
| Camera Modes (Front) | Real time beauty mode, Beautify with 36 smart beauty profiles | Timer mode, wide selfie mode, selfie mode, AR Emoji, selfie focus | |
| Face Recognition (Face ID) | Face recognition | - | Xiaomi Redmi Note 4x has face detection. |
| Camera Features (Front) | Selfie countdown | Quick launch, Motion photo, Stamps, location tags, VDIS (Video Digital Image Stabilization), Full view, Flaw detection |
| BATTERY AND CHARGING | Xiaomi Redmi Note 4x | Samsung Galaxy Note9 Unlocked |
|---|
| Battery Capacity (Battery Size) | 4100 mAh | 4000 mAh | Xiaomi Redmi Note 4x has larger battery capacity than Samsung Galaxy Note9 Unlocked. |
|---|---|---|---|
| Wireless Charging | - | Yes | Samsung Galaxy Note9 Unlocked can be charged wirelessly. |
| Wireless Charging Standards | - | WPC, PMA | |
| Standby Time | 264 hours | - | |
| Talk Time | 3060 minutes | 2280 minutes | Xiaomi Redmi Note 4x has longer battery life when making calls than Samsung Galaxy Note9 Unlocked. |
| Run Time Details | Talk (2G): up to 3060 min Playback (video): up to 18 hrs Gaming: up to 15 hrs Standby (4G): up to 264 hrs Playback (audio): up to 162 hrs Reading: up to 22 hrs |
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 |
| CELLULAR | Xiaomi Redmi Note 4x | Samsung Galaxy Note9 Unlocked |
|---|
| Technology | CDMA2000 1X / GSM / WCDMA (UMTS) / TD-SCDMA | CDMA2000 1X / GSM / WCDMA (UMTS) / TD-SCDMA | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | - | Android 8.1 Oreo | |
| User Interface | MIUI 8 | - | |
| Intelligent Assistant | - | Bixby | |
| Payment Technology | - | Samsung Pay | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, GLONASS |
| COMMUNICATIONS | Xiaomi Redmi Note 4x | Samsung Galaxy Note9 Unlocked |
|---|
| Data Transmission | GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, 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 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 5, Band 7, Band 38, Band 39, Band 40, Band 41 | 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 | |
| 4G LTE Frequency | FDD 2100, FDD 1800+, FDD 850, FDD 2600, TDD 2600, TDD 1900, TDD 2300, TDD 2500 | 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 | |
| Wireless Interface | Infrared (IrDA), IEEE 802.11b/g/n | IEEE 802.11a/b/g/n/ac, ANT+/ANT | |
| Bluetooth | Bluetooth 4.2 | Bluetooth 5.0 LE | |
| Bluetooth Profiles | HID | - | |
| NFC | - | Yes | Samsung Galaxy Note9 Unlocked has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Xiaomi Redmi Note 4x | Samsung Galaxy Note9 Unlocked |
|---|
| Supported Digital Audio Standards | WAV, AAC, PCM, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), DSD, AMR-WB, AMR-NB | 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 | |
|---|---|---|---|
| Supported Digital Video Standards | VC-1, XviD, MPEG-4, H.264, M4V, HEVC, H.265, ASP | MKV, FLV, AVI, MPEG-4, WMV, ASF, 3GP, M4V, WebM, 3G2 | |
| Sound Enhancements | - | Dolby Digital Plus sound, Dolby Atmos sound technology, Acoustic Overload Point, stereo speakers tuned by AKG, Dolby Digital sound |
| FEATURES | Xiaomi Redmi Note 4x | Samsung Galaxy Note9 Unlocked |
|---|
| 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, gyro sensor, hall sensor, distance sensor | Accelerometer, proximity sensor, barometer, gyro sensor, hall sensor, RGB sensor, pressure sensor, geomagnetic sensor | |
| Security Devices | - | Face recognition, fingerprint reader, eye scan | |
| Additional Phone Features | Infrared remote control | 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 |
| OTHERS | Xiaomi Redmi Note 4x | Samsung Galaxy Note9 Unlocked |
|---|
| Included Accessories | USB cable, power adapter, SIM card removal tool | Power adapter, tweezer, SIM card removal tool, USB connector, USB-C cable, S Pen, Pen nibs, headset (tuned by AKG) | |
|---|---|---|---|
| Compliant Standards | - | IP68 | |
| Max Depth of Water Resistance | - | 1.5 m |
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