Detailed comparison and review of Xiaomi Redmi Note 9S and Xiaomi Redmi 9A. With our comprehensive overview, you can simply compare sizes, functions, but also other key features of both phones and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the phone that best fits your needs and expectations.
| DESIGN AND DIMENSIONS | Xiaomi Redmi Note 9S | Xiaomi Redmi 9A |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 165.75 mm | 164.9 mm | Xiaomi Redmi Note 9S has greater height than Xiaomi Redmi 9A. |
| Width | 76.68 mm | 77.07 mm | Xiaomi Redmi 9A has greater width than Xiaomi Redmi Note 9S. |
| Depth | 8.8 mm | 9 mm | Xiaomi Redmi Note 9S is narrower than Xiaomi Redmi Note 9S. |
| Weight | 209 g | 196 g | Xiaomi Redmi 9A is lighter than Xiaomi Redmi Note 9S. |
| Body Colour | Aurora blue | Sky blue | Granite grey | |
| 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) | 0.398 W/kg (head), 1.186 W/kg (body), 2.526 W/kg (limb) | |
| Integrated Components | Ultra-linear speakers | FM radio | |
| Connector Type | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
|
| 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 | Xiaomi Redmi 9A |
|---|
| Display Type | LCD display | - | |
|---|---|---|---|
| Screen Size (Display Size) | 6.67" | 6.53" | Xiaomi Redmi Note 9S has larger screen size than Xiaomi Redmi 9A. |
| Screen Resolution (Display Resolution) | 2400 x 1080 pixels | 1600 x 720 pixels | Xiaomi Redmi Note 9S has better screen resolution than Xiaomi Redmi 9A. |
| Display Format | Full HD+ | HD+ | |
| Aspect Ratio | - | 20:9 | |
| Max Brightness | - | 400 cd/m² | |
| Contrast Ratio | 1500:1 | 1500:1 | Both phones have the same display contrast ratio. |
| HDR | Yes | - | Xiaomi Redmi Note 9S has HDR. |
| Display Enhancement Technology | - | Blue light filter, Sunlight mode | |
| Display Features | Reading mode 2.0, Dot Display | Reading mode, Colour temperature adjustment, Dot Drop display | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 5 (scratch resistant glass) | - |
| PROCESSOR | Xiaomi Redmi Note 9S | Xiaomi Redmi 9A |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 720G | MediaTek Helio G25 | |
|---|---|---|---|
| Clock Speed | 2.3 GHz | 2 GHz | Xiaomi Redmi Note 9S has higher clock speed than Xiaomi Redmi 9A. |
| 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) | Qualcomm ADRENO 618 | PowerVR GE8320 |
| MEMORY | Xiaomi Redmi Note 9S | Xiaomi Redmi 9A |
|---|
| RAM | 4 GB | LPDDR4X SDRAM - 2 GB | Xiaomi Redmi Note 9S has more RAM than Xiaomi Redmi 9A. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 32 GB | Xiaomi Redmi Note 9S has more internal memory than Xiaomi Redmi 9A. |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 512 GB | microSD |
| CAMERA | Xiaomi Redmi Note 9S | Xiaomi Redmi 9A |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 4 | 1 | |
|---|---|---|---|
| Sensor Resolution | 48 Megapixel | 13 Megapixel | Xiaomi Redmi Note 9S has better camera resolution than Xiaomi Redmi 9A. |
| Sensor Size | 1/2" | - | |
| Lens Aperture | F/1.79 | - | |
| Lens Construction | 6-element | - | |
| Field of View (FoV) | 79 degree(s) | - | |
| Pixel Size | 0.8 μm | - | |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | HDR, Kaleidoscope | HDR, Kaleidoscope | |
| Camera Modes | Burst mode, Panorama, night mode, Smart ultra-wide angle mode, Photo timer, Custom watermark, Documents, Beautify, Levelling, Cinematic portraits | AI portrait mode, AI Beautify 5.0 | |
| Face Recognition (Face ID) | Face recognition | Face recognition | Both phones have face detection. |
| Light Source | Dual LED flash | Single tone 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, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 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 scene detection |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 8 Megapixel | - | |
|---|---|---|---|
| Lens Type (2nd Camera) | Ultra wide-angle lens | - | |
| Lens Aperture (2nd Camera) | F/2.2 | - | |
| Field of View (2nd Camera) | 119 degree(s) | - | |
| Pixel Size (2nd Camera) | 1.12 μm | - |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 5 Megapixel | - | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | F/2.4 | - | |
| Pixel Size (3rd Camera) | 1.12 μm | - | |
| Camera Functions (3rd Camera) | Macro camera | - | |
| 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 | 5 Megapixel | Xiaomi Redmi Note 9S has better front camera resolution than Xiaomi Redmi 9A. |
| Lens Aperture (Front) | F/2.48 | F/2.2 | Xiaomi Redmi 9A has better front lens aperture than Xiaomi Redmi Note 9S. |
| Pixel Size (Front) | 1 μm | 1.12 μm | Xiaomi Redmi 9A has larger front camera pixel size than Xiaomi Redmi Note 9S. |
| Special Effects (Front) | HDR | HDR | |
| Camera Modes (Front) | Panoramic selfies, AI portrait mode, AI Beautify, Slo-mo Selfie | AI portrait mode, Portrait, AI Beautify 5.0 | |
| Face Recognition (Face ID) | Face recognition | Face recognition | Both phones have face detection. |
| Light Source (Front) | Display flash | Display flash | |
| Camera Features (Front) | AI scene detection, Palm shutter, AI silhouette detection | Self-timer, Palm shutter |
| BATTERY AND CHARGING | Xiaomi Redmi Note 9S | Xiaomi Redmi 9A |
|---|
| Battery Capacity (Battery Size) | 5020 mAh | 5000 mAh | Xiaomi Redmi Note 9S has larger battery capacity than Xiaomi Redmi 9A. |
|---|---|---|---|
| Standby Time | - | 816 hours | |
| Talk Time | 1980 minutes | 2280 minutes | Xiaomi Redmi 9A 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 816 hrs Playback (audio): up to 168 hrs Talk: up to 2280 min Playback (video): up to 19 hrs Gaming: up to 14 hrs |
|
| Battery Technology | Lithium Ion | - |
| CELLULAR | Xiaomi Redmi Note 9S | Xiaomi Redmi 9A |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| User Interface | MIUI 10 | - | |
| Payment Technology | Google Pay | - | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou, Galileo | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | Xiaomi Redmi Note 9S | Xiaomi Redmi 9A |
|---|
| 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 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 20, Band 28, Band 38, Band 40 | 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 800 DD, FDD 700 APT, TDD 2600, TDD 2300 | 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 | IEEE 802.11b/g/n | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.0 | |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Xiaomi Redmi Note 9S | Xiaomi Redmi 9A |
|---|
| Supported Digital Audio Standards | WAV, AAC, AMR, MP3, FLAC, APE (Monkey's Audio), MP4 | AAC, PCM, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), AMR-WB, AMR-NB | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, XviD, M4V, MP4 | MKV, MPEG4-ASP, MPEG-4 SP, H.264 BP, H.264 MP, H.264 HP | |
| Sound Enhancements | - | 0.64cc Sound Chamber | |
| Audio Amplifier | Smart PA | - |
| FEATURES | Xiaomi Redmi Note 9S | Xiaomi Redmi 9A |
|---|
| 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, digital compass, gyro sensor, distance sensor, infrared (IR) sensor, In-screen ambient light sensor | Accelerometer, ambient light sensor, distance sensor | |
| Security Devices | Face recognition, fingerprint reader (side) | Face recognition | |
| 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 | AI face unlock, HyperEngine technology |
| OTHERS | Xiaomi Redmi Note 9S | Xiaomi Redmi 9A |
|---|
| Included Accessories | Protective cover, SIM card removal tool, USB-C cable, 18W charger | USB cable, SIM card removal tool, 10W charger | |
|---|---|---|---|
| Compliant Standards | TUV Rheinland | - |
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