In depth comparison and review of Xiaomi Redmi Note 9 and Motorola Moto G31. 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 | Xiaomi Redmi Note 9 | Motorola Moto G31 |
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Product Type | Smartphone | Smartphone | |
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Form Factor | Touch | Touch | |
Height | 162.3 mm | 161.89 mm | Xiaomi Redmi Note 9 has greater height than Motorola Moto G31. |
Width | 77.2 mm | 73.87 mm | Xiaomi Redmi Note 9 has greater width than Motorola Moto G31. |
Depth | 8.9 mm | 8.55 mm | Motorola Moto G31 is narrower than Xiaomi Redmi Note 9. |
Weight | 199 g | 181 g | Motorola Moto G31 is lighter than Xiaomi Redmi Note 9. |
Body Colour | Forest green | Mineral grey | Baby blue | |
Body Material | - | Plastic | |
Protection | Splashproof | - | |
Waterproof (Water-resistant) | - | - | |
SAR Value | 2.262 W/kg (limb), 1.138 W/kg (body), 0.795 W/kg (head) | 1.46 W/kg (body), 0.67 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 |
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SIM Card Type (Size) | Nano SIM | Nano SIM | |
SIM Card Qty | Dual-SIM | Dual-SIM | |
SIM Card Configuration Details | Nano SIM + nano SIM/microSD | Nano SIM + nano SIM/microSD |
DISPLAY | Xiaomi Redmi Note 9 | Motorola Moto G31 |
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Display Type | - | OLED display | |
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Display Technology | - | OLED | |
Screen Size (Display Size) | 6.53" | 6.4" | Xiaomi Redmi Note 9 has larger screen size than Motorola Moto G31. |
Screen Resolution (Display Resolution) | 2340 x 1080 pixels | 2400 x 1080 pixels | Motorola Moto G31 has better screen resolution than Xiaomi Redmi Note 9. |
Display Format | Full HD+ | Full HD+ | |
Pixel Density | - | 409 ppi | |
Aspect Ratio | 19.5:9 | 20:9 | |
Max Brightness | 450 cd/m² | - | |
Contrast Ratio | 1500:1 | - | |
Display Refresh Rate | - | 60 Hz | |
Display Features | Reading mode 2.0, Dot Display, Full Screen gestures | Max Vision display | |
Display Protection (Screen Protector) | Corning Gorilla Glass 5 (scratch resistant glass) | - |
PROCESSOR | Xiaomi Redmi Note 9 | Motorola Moto G31 |
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Processor Type (CPU) | MediaTek Helio G85 | MediaTek Helio G85 | |
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Clock Speed | 2 GHz | 2 GHz | Both phones have the same clock speed. |
Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
Graphics System (GPU) | ARM G52 MC2 | ARM Mali-G52 MC2 |
MEMORY | Xiaomi Redmi Note 9 | Motorola Moto G31 |
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RAM | 3 GB | 4 GB | Motorola Moto G31 has more RAM than Xiaomi Redmi Note 9. |
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Internal Memory Size (Storage Capacity) | 64 GB | 64 GB | Both phones have the same internal memory capacity. |
Supported Flash Memory Cards (Expandable Memory) | microSD | microSDHC, microSD, microSDXC - up to 1 TB |
CAMERA | Xiaomi Redmi Note 9 | Motorola Moto G31 |
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MAIN CAMERA |
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Number of Main Cameras | 4 | 4 | |
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Sensor Resolution | 48 Megapixel | 50 Megapixel | Motorola Moto G31 has better camera resolution than Xiaomi Redmi Note 9. |
Sensor Size | 1/2" | - | |
Lens Aperture | F/1.79 | F/1.8 | Xiaomi Redmi Note 9 has better lens aperture than Xiaomi Redmi Note 9. |
Lens Construction | 6-element | - | |
Field of View (FoV) | 79.4 degree(s) | - | |
Pixel Size | 0.8 μm | 1.28 μm | Motorola Moto G31 has larger camera pixel size than Xiaomi Redmi Note 9. |
Focus Adjustment | Automatic | Automatic | |
Self-Timer Delay | - | Yes | |
Special Effects | HDR, Kaleidoscope | HDR, Spot Colour | |
Camera Modes | Burst mode, Panorama, night mode, Smart ultra-wide angle mode, Photo timer, Custom watermark, Documents, Beautify, Levelling, Cinematic portraits | Panorama, Pro mode, Timer mode, BurstShot, Watermark mode, Active photos, Cinemagraph, Portrait, Night Vision, AR stickers, Levelling, Macro Vision, Long exposure mode, Live filter, Capture Dual | |
Face Recognition (Face ID) | Face recognition | Auto smile capture | Both phones have face detection. |
Light Source | Flash | LED flash | |
Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, Slo-mo video 1280 x 720 (720p) at 120 fps | 1920 x 1080 (1080p) at 30 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), Barcode Scanner, Cutout, Quad Pixel technology, smart composition, RAW photo output, shot optimisation, Google Lens, High-res digital zoom (up to 8x), Assistive Grid |
SECOND CAMERA |
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Sensor Resolution (2nd Camera) | 8 Megapixel | 8 Megapixel | Both phones have the same second camera resolution. |
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Sensor Size (2nd Camera) | 1/4" | - | |
Lens Type (2nd Camera) | Ultra wide-angle lens | Ultra wide-angle lens | |
Lens Aperture (2nd Camera) | F/2.2 | F/2.2 | Both phones have the same second camera lens aperture. |
Lens Element Qty (2nd Camera) | 5-element | - | |
Field of View (2nd Camera) | 118 degree(s) | 118 degree(s) | Both phones have the same second camera lens field of view. |
Pixel Size (2nd Camera) | 1.2 μm | 1.12 μm | Xiaomi Redmi Note 9 has larger second camera pixel size than Motorola Moto G31. |
Camera Functions (2nd Camera) | - | Depth camera | |
Camera Features (2nd Camera) | 5-piece lens | - |
THIRD CAMERA |
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Sensor Resolution (3rd Camera) | 2 Megapixel | 2 Megapixel | Both phones have the same third camera resolution. |
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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) | 1.75 μm | 1.75 μm | Both phones have the same third camera pixel size. |
Camera Functions (3rd Camera) | Macro camera | Macro camera | |
Camera Features (3rd Camera) | AF (2cm-10cm) | - |
FOURTH CAMERA |
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Sensor Resolution (4th Camera) | 2 Megapixel | - | |
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Sensor Size (4th Camera) | 1/5" | - | |
Lens Aperture (4th Camera) | F/2.4 | F/2.4 | Both phones have the same lens aperture of the fourth camera. |
Lens Element Qty (4th Camera) | 3-element | - | |
Pixel Size (4th Camera) | 1.75 μm | 1.75 μm | Both phones have the same pixel size of the fourth camera. |
Camera Functions (4th Camera) | Depth camera | Depth camera |
FRONT CAMERA |
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Number of Front Cameras | 1 | 1 | |
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Sensor Resolution (Front) | 13 Megapixel | 13 Megapixel | Both phones have the same front camera resolution. |
Sensor Size (Front) | 1/3.06" | - | |
Lens Aperture (Front) | F/2.25 | F/2.2 | Motorola Moto G31 has better front lens aperture than Xiaomi Redmi Note 9. |
Lens Element Qty (Front) | 5-element | - | |
Field of View (Front) | 74 degree(s) | - | |
Pixel Size (Front) | 1.12 μm | 1.12 μm | Both phones have the same front camera pixel size. |
Special Effects (Front) | HDR | HDR, Spot Colour | |
Camera Modes (Front) | Panoramic selfies, AI portrait mode, AI Beautify | Slow motion video, Pro mode, Timer mode, BurstShot, HYPERLAPSE, Watermark mode, portrait mode, Face Beauty, Timelapse video, Active photos, Cinemagraph, Portrait, Night Vision, Levelling, Gesture selfie, Group selfie, Long exposure mode, Live filter, Low Light AI Selfie, Capture Dual, Gesture Capture | |
Face Recognition (Face ID) | Face recognition | Auto smile capture | Both phones have face detection. |
Light Source (Front) | Display flash | - | |
Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps | |
Camera Features (Front) | Palm shutter, AI silhouette detection | Video image stabilisation, RAW photo, Shot optimisation, Selfie animation, Assistive grid |
BATTERY AND CHARGING | Xiaomi Redmi Note 9 | Motorola Moto G31 |
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Battery Capacity (Battery Size) | 5020 mAh | 5000 mAh | Xiaomi Redmi Note 9 has larger battery capacity than Motorola Moto G31. |
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Talk Time | 1980 minutes | - | |
Run Time Details | Talk: up to 1980 min Gaming: up to 16 hrs Playback (Music): up to 147 hrs Navigation: up to 16 hrs |
Standard usage: up to 36 hrs | |
Battery Technology | Lithium polymer | - |
CELLULAR | Xiaomi Redmi Note 9 | Motorola Moto G31 |
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Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
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Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
Operating System | - | Android 11 | |
Intelligent Assistant | - | Google Assistant | |
Navigation | GPS, A-GPS, GLONASS, BeiDou, Galileo | GPS, A-GPS, GLONASS, Galileo |
COMMUNICATIONS | Xiaomi Redmi Note 9 | Motorola Moto G31 |
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Data Transmission | VoLTE, FDD-LTE, TDD-LTE | LTE | |
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2G Band | 850 GSM, 900 GSM, 1900 GSM, 2100 GSM | - | |
3G UMTS Band | Band 1, Band 2, Band 4, Band 5, Band 8 | - | |
3G UMTS Frequency | 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 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, TDD 2500 | - | |
Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac | |
Bluetooth | Bluetooth 5.0 | Bluetooth 5.0 | |
NFC | - | Yes | Motorola Moto G31 has NFC reader for mobile payments. |
MEDIA | Xiaomi Redmi Note 9 | Motorola Moto G31 |
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Supported Digital Audio Standards | WAV, AAC, AMR, MP3, FLAC, APE (Monkey's Audio) | Dolby Atmos | |
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Supported Digital Video Standards | MKV, XviD, M4V, MP4 | - | |
Audio Amplifier | Smart PA | - |
FEATURES | Xiaomi Redmi Note 9 | Motorola Moto G31 |
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Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | - | |
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Sensors | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor, infrared (IR) sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass, SAR sensor, gyroscope | |
Security Devices | Face recognition, fingerprint reader | Face recognition, fingerprint reader | |
Security Technology | - | Face Unlock | |
Additional Phone Features | Infrared remote control, HyperEngine technology | Dual microphones |
OTHERS | Xiaomi Redmi Note 9 | Motorola Moto G31 |
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Included Accessories | Protective cover, power adapter, SIM card removal tool, USB-C cable | Protective cover, USB cable, SIM card removal tool, 10W charger | |
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Compliant Standards | TUV Rheinland Low Blue Light Certification | - |