In depth comparison and review of Samsung Galaxy S9+ and Xiaomi Redmi Note 9. 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 S9+ | Xiaomi Redmi Note 9 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | SM-G965F | - | |
| Form Factor | Touch | Touch | |
| Height | 158.1 mm | 162.3 mm | Xiaomi Redmi Note 9 has greater height than Samsung Galaxy S9+. |
| Width | 73.8 mm | 77.2 mm | Xiaomi Redmi Note 9 has greater width than Samsung Galaxy S9+. |
| Depth | 8.5 mm | 8.9 mm | Samsung Galaxy S9+ is narrower than Samsung Galaxy S9+. |
| Weight | 189 g | 199 g | Samsung Galaxy S9+ is lighter than Samsung Galaxy S9+. |
| Body Colour | Lilac purple | Forest green | |
| Body Material | Metal frame | - | |
| Protection | Dustproof, splashproof, waterproof | Splashproof | |
| Waterproof (Water-resistant) | Yes | - | Samsung Galaxy S9+ is waterproof. |
| IP rating | IP68 | - | |
| SAR Value | 1.35 W/kg (body), 0.294 W/kg (head) | 2.262 W/kg (limb), 1.138 W/kg (body), 0.795 W/kg (head) | |
| Integrated Components | - | Ultra-linear speaker | |
| Connector Type | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Single-SIM | Dual-SIM | |
| SIM Card Configuration Details | - | Nano SIM + nano SIM/microSD |
| DISPLAY | Samsung Galaxy S9+ | Xiaomi Redmi Note 9 |
|---|
| Display Type | OLED display | - | |
|---|---|---|---|
| Display Technology | Quad HD+ Super AMOLED | - | |
| Screen Size (Display Size) | 6.2" | 6.53" | Xiaomi Redmi Note 9 has larger screen size than Samsung Galaxy S9+. |
| Screen Resolution (Display Resolution) | 2960 x 1440 pixels | 2340 x 1080 pixels | Samsung Galaxy S9+ has better screen resolution than Xiaomi Redmi Note 9. |
| Display Format | QHD+ | Full HD+ | |
| Pixel Density | 529 ppi | - | |
| Aspect Ratio | 18.5:9 | 19.5:9 | |
| Max Brightness | - | 450 cd/m² | |
| Colour Depth | 16.7 million colours | - | |
| Contrast Ratio | - | 1500:1 | |
| HDR | Yes | - | Samsung Galaxy S9+ has HDR. |
| Display Features | Always-on display, Infinity Display, Curved Dual-Edge Screen | Reading mode 2.0, Dot Display, Full Screen gestures | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 5 (scratch resistant glass) | Corning Gorilla Glass 5 (scratch resistant glass) |
| PROCESSOR | Samsung Galaxy S9+ | Xiaomi Redmi Note 9 |
|---|
| Processor Type (CPU) | Samsung Exynos | MediaTek Helio G85 | |
|---|---|---|---|
| Processor Number | 9810 | - | |
| Clock Speed | 2.7 GHz | 2 GHz | Samsung Galaxy S9+ has higher clock speed than Xiaomi Redmi Note 9. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | - | Samsung Galaxy S9+ has 64-bit architecture. |
| Graphics System (GPU) | - | ARM G52 MC2 |
| MEMORY | Samsung Galaxy S9+ | Xiaomi Redmi Note 9 |
|---|
| RAM | LPDDR4 SDRAM - 6 GB | 3 GB | Samsung Galaxy S9+ has more RAM than Xiaomi Redmi Note 9. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 64 GB | Both phones have the same internal memory capacity. |
| User Memory | 50.3 GB | - | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 512 GB | microSD |
| CAMERA | Samsung Galaxy S9+ | Xiaomi Redmi Note 9 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 4 | |
|---|---|---|---|
| Sensor Resolution | 12 Megapixel | 48 Megapixel | Xiaomi Redmi Note 9 has better camera resolution than Samsung Galaxy S9+. |
| Sensor Size | 1/2.55" | 1/2" | Samsung Galaxy S9+ has better camera sensor size than Xiaomi Redmi Note 9. |
| Lens Type | Wide-angle lens | - | |
| Lens Aperture | F/1.5 and f/2.4 | F/1.79 | Samsung Galaxy S9+ has better lens aperture than Samsung Galaxy S9+. |
| Lens Construction | - | 6-element | |
| Field of View (FoV) | - | 79.4 degree(s) | |
| Pixel Size | - | 0.8 μm | |
| Optical Image Stabiliser (OIS) | Dual OIS (Optical Image Stabilisation) | - | Samsung Galaxy S9+ has optical stabilisation. |
| Focus Adjustment | Automatic, manual | Automatic | |
| Optical Zoom | 2x | - | |
| Digital Zoom | 10x | - | |
| Special Effects | Motion effect, HDR, Stamp, Bokeh effect, Grid Line, Stickers | HDR, Kaleidoscope | |
| Camera Modes | Panorama, Slow motion mode, Pro mode, Timer mode, HYPERLAPSE, Auto mode, low-light shots, Food mode, Super Slow-mo, AR Emoji | Burst mode, Panorama, night mode, Smart ultra-wide angle mode, Photo timer, Custom watermark, Documents, Beautify, Levelling, Cinematic portraits | |
| Face Recognition (Face ID) | Face detection | Face recognition | Both phones have face detection. |
| White Balance | Custom, automatic | - | |
| Light Source | LED flash | Flash | |
| 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, Slo-mo video 1280 x 720 (720p) at 120 fps | |
| Camera Features (Functions) | Selective Focus, Quick Launch, Playback zoom, Tracking Focus, Dual Pixel technology, Motion photo, Exposure, Shutter speed, geotagging, Continuous Auto Focus (CAF), RAW image capture, VDIS (Video Digital Image Stabilisation), Dual Capture, High CRI LED flash, Tracking AF, 9MP still photos recording 4K video, Video location tags, Stamps, location tags, Continuous autofocus video, Hyperlapse video support 1080p, Live focus with bokeh filters, Super Speed Dual Pixel | 4-in-1 Super Pixel, AI scene detection, Portrait mode with background blurring, Ultra wide-angle edge distortion correction, Steady handheld night photography, full screen frame, AI watermark |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 12 Megapixel | 8 Megapixel | Samsung Galaxy S9+ has better second camera resolution than Xiaomi Redmi Note 9. |
|---|---|---|---|
| Sensor Size (2nd Camera) | 1/3.4" | 1/4" | Xiaomi Redmi Note 9 has better second camera sensor size than Samsung Galaxy S9+. |
| Lens Type (2nd Camera) | Telephoto lens | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | F/2.4 | F/2.2 | Xiaomi Redmi Note 9 has better second camera lens aperture than Samsung Galaxy S9+. |
| Lens Element Qty (2nd Camera) | - | 5-element | |
| Field of View (2nd Camera) | - | 118 degree(s) | |
| Pixel Size (2nd Camera) | - | 1.2 μm | |
| Camera Features (2nd Camera) | - | 5-piece lens |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | - | F/2.4 | |
| Pixel Size (3rd Camera) | - | 1.75 μm | |
| Camera Functions (3rd Camera) | - | Macro camera | |
| Camera Features (3rd Camera) | - | AF (2cm-10cm) |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Sensor Size (4th Camera) | - | 1/5" | |
| Lens Aperture (4th Camera) | - | F/2.4 | |
| Lens Element Qty (4th Camera) | - | 3-element | |
| Pixel Size (4th Camera) | - | 1.75 μm | |
| Camera Functions (4th Camera) | - | Depth camera |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 8 Megapixel | 13 Megapixel | Xiaomi Redmi Note 9 has better front camera resolution than Samsung Galaxy S9+. |
| Sensor Size (Front) | 1/3.6" | 1/3.06" | Samsung Galaxy S9+ has better front camera sensor size than Xiaomi Redmi Note 9. |
| Lens Aperture (Front) | F/1.7 | F/2.25 | Samsung Galaxy S9+ has better front lens aperture than Samsung Galaxy S9+. |
| Lens Element Qty (Front) | - | 5-element | |
| Field of View (Front) | - | 74 degree(s) | |
| Pixel Size (Front) | - | 1.12 μm | |
| Focus Adjustment | Automatic | - | |
| Special Effects (Front) | HDR, Grid Line | HDR | |
| Camera Modes (Front) | Timer mode, wide selfie mode, selfie mode, AR Emoji, selfie focus | Panoramic selfies, AI portrait mode, AI Beautify | |
| Face Recognition (Face ID) | - | Face recognition | Xiaomi Redmi Note 9 has face detection. |
| Light Source (Front) | - | Display flash | |
| Camera Features (Front) | Quick launch, Motion photo, Stamps, Smart Auto Focus, location tags, VDIS (Video Digital Image Stabilization) | Palm shutter, AI silhouette detection |
| BATTERY AND CHARGING | Samsung Galaxy S9+ | Xiaomi Redmi Note 9 |
|---|
| Battery Capacity (Battery Size) | 3500 mAh | 5020 mAh | Xiaomi Redmi Note 9 has larger battery capacity than Samsung Galaxy S9+. |
|---|---|---|---|
| Wireless Charging | Yes | - | Samsung Galaxy S9+ can be charged wirelessly. |
| Wireless Charging Standards | WPC, PMA | - | |
| Talk Time | 1500 minutes | 1980 minutes | Xiaomi Redmi Note 9 has longer battery life when making calls than Samsung Galaxy S9+. |
| Run Time Details | Active online usage (LTE): up to 15 hrs Active online usage (3G): up to 13 hrs Talk (3G): up to 1500 min Playback (audio): up to 54 hrs Playback (Always On Display Off): up to 94 hrs Playback (video): up to 18 hrs Active online usage (Wi-Fi): up to 15 hrs |
Talk: up to 1980 min Gaming: up to 16 hrs Playback (Music): up to 147 hrs Navigation: up to 16 hrs |
|
| Battery Technology | - | Lithium polymer |
| CELLULAR | Samsung Galaxy S9+ | Xiaomi Redmi Note 9 |
|---|
| Technology | TD-SCDMA / WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 8.0 Oreo | - | |
| Intelligent Assistant | Bixby | - | |
| Payment Technology | Samsung Pay | - | |
| Navigation | GPS, GLONASS, BeiDou, Galileo | GPS, A-GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Samsung Galaxy S9+ | Xiaomi Redmi Note 9 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE, VoWiFi | VoLTE, FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM, 800 CDMA2000 1X, 1900 CDMA2000 1X, 2100 CDMA2000 1X (AWS) | 850 GSM, 900 GSM, 1900 GSM, 2100 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 20, Band 28, Band 38, 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 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 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | |
| 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 | |
| Bluetooth Profiles | HFP, HSP, OPP, PAN, A2DP, AVRCP, HID, PBAP, MAP, HOGP | - | |
| NFC | Yes | - | Samsung Galaxy S9+ has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | Samsung Galaxy S9+ | Xiaomi Redmi Note 9 |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, PCM, AMR, MP3, FLAC, AAC-LC, XMF, AAC +, OGG, eAAC+, MIDI, APE (Monkey's Audio), M4A, apt-X, DSF, DSD, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, OPUS, DFF, MID, AMR-WB, AMR-NB, Vorbis, DSD64, DSD128 | WAV, AAC, AMR, MP3, FLAC, APE (Monkey's Audio) | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, VC-1, FLV, AVC, AVI, MPEG-4, WMV, ASF, 3GP, H.264, H.263, M4V, WebM, HEVC, MP43, 3G2, WMV8, VP8, VP9, H.265, WMV7 | MKV, XviD, M4V, MP4 | |
| Sound Enhancements | Dolby Digital Plus sound, Dolby Atmos sound technology, Surround sound, stereo speakers tuned by AKG, Dolby Digital sound | - | |
| Audio Amplifier | - | Smart PA |
| FEATURES | Samsung Galaxy S9+ | Xiaomi Redmi Note 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, proximity sensor, digital compass, gyro sensor, infrared (IR) sensor | |
| Security Devices | Face recognition, fingerprint reader, eye scan | Face recognition, fingerprint reader | |
| Additional Phone Features | Multitasking, Face Unlock, Wi-Fi Miracast, Multi Window, MU-MIMO technology, Fast Charging, Samsung KNOX, High AOP Mic, Samsung DeX support, Bixby Vision, Intelligent Scan | Infrared remote control, HyperEngine technology |
| OTHERS | Samsung Galaxy S9+ | Xiaomi Redmi Note 9 |
|---|
| Included Accessories | Power adapter, SIM card removal tool, USB Connector (USB-C), micro-USB connector, USB-C cable, headset (tuned by AKG) | Protective cover, power adapter, SIM card removal tool, USB-C cable | |
|---|---|---|---|
| Compliant Standards | IP68 | TUV Rheinland Low Blue Light Certification | |
| Max Depth of Water Resistance | 1.5 m | - |
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