Side by side comparison and review of Xiaomi Redmi Note 9S and Realme 9i. 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 9S | Realme 9i |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 165.75 mm | 164.4 mm | Xiaomi Redmi Note 9S has greater height than Realme 9i. |
| Width | 76.68 mm | 75.7 mm | Xiaomi Redmi Note 9S has greater width than Realme 9i. |
| Depth | 8.8 mm | 8.4 mm | Realme 9i is narrower than Xiaomi Redmi Note 9S. |
| Weight | 209 g | 190 g | Realme 9i is lighter than Xiaomi Redmi Note 9S. |
| Body Colour | Aurora blue | Prism black | Prism blue | |
| Body Material | Curved 3D glass, Gorilla glass 5 | - | |
| Protection | Dustproof, splashproof | - | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 0.98 W/kg (body), 0.72 W/kg (head), 2.35 W/kg (limb) | 1.02 W/kg (body), 2.072 W/kg (limb), 0.788 W/kg (head) | |
| Integrated Components | Ultra-linear speakers | - | |
| 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 | Dual-SIM | |
| SIM Card Configuration Details | Nano SIM + nano SIM/microSD | - |
| DISPLAY | Xiaomi Redmi Note 9S | Realme 9i |
|---|
| Display Type | LCD display | - | |
|---|---|---|---|
| Screen Size (Display Size) | 6.67" | 6.6" | Xiaomi Redmi Note 9S has larger screen size than Realme 9i. |
| Screen Resolution (Display Resolution) | 2400 x 1080 pixels | 2412 x 1080 pixels | Realme 9i has better screen resolution than Xiaomi Redmi Note 9S. |
| Display Format | Full HD+ | Full HD+ | |
| Pixel Density | - | 401 ppi | |
| Max Brightness | - | 480 cd/m² | |
| Contrast Ratio | 1500:1 | - | |
| HDR | Yes | - | Xiaomi Redmi Note 9S has HDR. |
| Display Enhancement Technology | - | Ultra-Smooth | |
| Display Refresh Rate | - | 90 Hz | |
| Touch Sampling Rate | - | 180 Hz | |
| Display Features | Reading mode 2.0, Dot Display | 5-level fresh rates | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 5 (scratch resistant glass) | Dragontrail PRO (scratch resistant glass) |
| PROCESSOR | Xiaomi Redmi Note 9S | Realme 9i |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 720G | Qualcomm Snapdragon 680 | |
|---|---|---|---|
| Clock Speed | 2.3 GHz | 2.4 GHz | Realme 9i has higher clock speed than Xiaomi Redmi Note 9S. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | - | Xiaomi Redmi Note 9S has 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 618 | Qualcomm ADRENO 610 |
| MEMORY | Xiaomi Redmi Note 9S | Realme 9i |
|---|
| RAM | 4 GB | LPDDR4X SDRAM - 4 GB + up to 11 GB virtual extension | Both phones have the same RAM size. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 128 GB | Realme 9i has more internal memory than Xiaomi Redmi Note 9S. |
| Memory Interface | - | UFS 2.1 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 512 GB | microSDHC, microSD, microSDXC - up to 1 TB |
| CAMERA | Xiaomi Redmi Note 9S | Realme 9i |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 4 | 3 | |
|---|---|---|---|
| Sensor Resolution | 48 Megapixel | 50 Megapixel | Realme 9i has better camera resolution than Xiaomi Redmi Note 9S. |
| Sensor Size | 1/2" | - | |
| Lens Aperture | F/1.79 | F/1.8 | Xiaomi Redmi Note 9S has better lens aperture than Xiaomi Redmi Note 9S. |
| Lens Construction | 6-element | 5-element | |
| Field of View (FoV) | 79 degree(s) | - | |
| Pixel Size | 0.8 μm | - | |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | HDR, Kaleidoscope | HDR | |
| Camera Modes | Burst mode, Panorama, night mode, Smart ultra-wide angle mode, Photo timer, Custom watermark, Documents, Beautify, Levelling, Cinematic portraits | Panorama, Slow motion mode, night mode, Expert Mode, portrait mode, Timelapse video, Ultra Macro Mode, 50MP mode, Super Text, Digital Zoom mode | |
| Face Recognition (Face ID) | Face recognition | - | Xiaomi Redmi Note 9S has face detection. |
| Light Source | Dual LED flash | LED 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 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, Slo-mo video 1280 x 720 (720p) at 960 fps | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, 1280 x 720 (720p) at 120 fps | |
| Camera Features (Functions) | 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 | Phase Detect Auto-Focus (PDAF), AI Triple camera |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 8 Megapixel | 2 Megapixel | Xiaomi Redmi Note 9S has better second camera resolution than Realme 9i. |
|---|---|---|---|
| Lens Type (2nd Camera) | Ultra wide-angle lens | - | |
| Lens Aperture (2nd Camera) | F/2.2 | F/2.4 | Xiaomi Redmi Note 9S has better second camera lens aperture than Xiaomi Redmi Note 9S. |
| Field of View (2nd Camera) | 119 degree(s) | - | |
| Pixel Size (2nd Camera) | 1.12 μm | - | |
| Camera Functions (2nd Camera) | - | Macro camera | |
| Camera Features (2nd Camera) | - | 4cm macro photography |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 5 Megapixel | 2 Megapixel | Xiaomi Redmi Note 9S has higher resolution third camera than Realme 9i. |
|---|---|---|---|
| Lens Aperture (3rd Camera) | F/2.4 | F/2.4 | Both phones have the same lens aperture of the third camera. |
| Pixel Size (3rd Camera) | 1.12 μm | - | |
| Camera Functions (3rd Camera) | Macro camera | B&W lens | |
| Camera Features (3rd Camera) | AF (2cm-10cm) | - |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | 2 Megapixel | - | |
|---|---|---|---|
| Lens Aperture (4th Camera) | F/2.4 | - | |
| Pixel Size (4th Camera) | 1.75 μm | - | |
| Camera Functions (4th Camera) | Depth camera | - |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 16 Megapixel | 16 Megapixel | Both phones have the same front camera resolution. |
| Lens Aperture (Front) | F/2.48 | F/2.1 | Realme 9i has better front lens aperture than Xiaomi Redmi Note 9S. |
| Lens Element Qty (Front) | - | 5-element | |
| Pixel Size (Front) | 1 μm | - | |
| Special Effects (Front) | HDR | HDR | |
| Camera Modes (Front) | Panoramic selfies, AI portrait mode, AI Beautify, Slo-mo Selfie | Panorama, Time-lapse mode, night mode, portrait mode, AI Beauty | |
| Face Recognition (Face ID) | Face recognition | - | Xiaomi Redmi Note 9S has face detection. |
| Light Source (Front) | Display flash | - | |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Front) | AI scene detection, Palm shutter, AI silhouette detection | - |
| BATTERY AND CHARGING | Xiaomi Redmi Note 9S | Realme 9i |
|---|
| Battery Capacity (Battery Size) | 5020 mAh | 5000 mAh | Xiaomi Redmi Note 9S has larger battery capacity than Realme 9i. |
|---|---|---|---|
| Fast Charging Technology | - | Dart Charge | Realme 9i has fast charging technology. |
| Standby Time | - | 995 hours | |
| Talk Time | 1980 minutes | 2904 minutes | Realme 9i has longer battery life when making calls than Xiaomi Redmi Note 9S. |
| Run Time Details | Talk: up to 1980 min Gaming: up to 13 hrs Playback (Music): up to 147 hrs Navigation: up to 16 hrs |
Standby: up to 995 hrs Talk: up to 2904 min WhatsApp: up to 20.7 hrs Playback (Music): up to 116.3 hrs |
|
| Battery Technology | Lithium Ion | - |
| CELLULAR | Xiaomi Redmi Note 9S | Realme 9i |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | - | Android 11 | |
| User Interface | MIUI 10 | Realme UI 2.0 | |
| Payment Technology | Google Pay | - | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou, Galileo | GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Xiaomi Redmi Note 9S | Realme 9i |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE | FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1900 GSM, 2100 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | Band 1, Band 2, Band 4, Band 5, Band 8 | Band 1, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 900 | 2100, 850, 900 | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40 | Band 1, Band 3, 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 800 DD, FDD 700 APT, TDD 2600, TDD 2300 | FDD 2100, FDD 1800+, 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 | Wi-Fi | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.0 | |
| NFC | - | Yes | Realme 9i has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | Xiaomi Redmi Note 9S | Realme 9i |
|---|
| Supported Digital Audio Standards | WAV, AAC, AMR, MP3, FLAC, APE (Monkey's Audio), MP4 | - | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, XviD, M4V, MP4 | - | |
| Audio Amplifier | Smart PA | - |
| FEATURES | Xiaomi Redmi Note 9S | Realme 9i |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | - | |
|---|---|---|---|
| Sensors | Accelerometer, digital compass, gyro sensor, distance sensor, infrared (IR) sensor, In-screen ambient light sensor | Accelerometer, proximity sensor, magnetometer, light sensor | |
| Security Devices | Face recognition, fingerprint reader (side) | Fingerprint reader (side) | |
| Security Technology | A.I. face recognition | - | |
| Additional Phone Features | Infrared remote control, AI face unlock, Qualcomm 5th generation AI Engine, Z-axis linear vibration motor | Dual microphones, Fast Charging, Super power saving mode, dual stereo speakers |
| OTHERS | Xiaomi Redmi Note 9S | Realme 9i |
|---|
| Included Accessories | Protective cover, SIM card removal tool, USB-C cable, 18W charger | Screen protection film, SIM card removal tool, USB-C cable, protective case, 33W charger | |
|---|---|---|---|
| Compliant Standards | TUV Rheinland | - |
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