In depth comparison and review of Xiaomi Redmi Note 9 and Sony XPERIA 1 IV. 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 | Sony XPERIA 1 IV |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 162.3 mm | 165 mm | Sony XPERIA 1 IV has greater height than Xiaomi Redmi Note 9. |
| Width | 77.2 mm | 71 mm | Xiaomi Redmi Note 9 has greater width than Sony XPERIA 1 IV. |
| Depth | 8.9 mm | 8.2 mm | Sony XPERIA 1 IV is narrower than Xiaomi Redmi Note 9. |
| Weight | 199 g | 187 g | Sony XPERIA 1 IV is lighter than Xiaomi Redmi Note 9. |
| Body Colour | Forest green | Black | Purple | |
| Body Material | - | Corning Gorilla Glass Victus | |
| Protection | Splashproof | Dustproof, water-resistant | |
| Waterproof (Water-resistant) | - | Yes | Sony XPERIA 1 IV is waterproof. |
| IP rating | - | IPX8, IPX5, IP6X | |
| SAR Value | 2.262 W/kg (limb), 1.138 W/kg (body), 0.795 W/kg (head) | 0.92 W/kg (body), 0.88 W/kg (head), 1.56 W/kg (limb) | |
| 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, Electronic SIM card (e-SIM) | |
| SIM Card Qty | Dual-SIM | Dual-SIM | |
| SIM Card Configuration Details | Nano SIM + nano SIM/microSD | - |
| DISPLAY | Xiaomi Redmi Note 9 | Sony XPERIA 1 IV |
|---|
| Display Type | - | OLED display | |
|---|---|---|---|
| Display Technology | - | OLED | |
| Screen Size (Display Size) | 6.53" | 6.5" | Xiaomi Redmi Note 9 has larger screen size than Sony XPERIA 1 IV. |
| Screen Resolution (Display Resolution) | 2340 x 1080 pixels | 3840 x 1644 pixels | Sony XPERIA 1 IV has better screen resolution than Xiaomi Redmi Note 9. |
| Display Format | Full HD+ | 4K | |
| Aspect Ratio | 19.5:9 | 21:9 | |
| Max Brightness | 450 cd/m² | - | |
| Contrast Ratio | 1500:1 | 1000000:1 | Sony XPERIA 1 IV has better display contrast ratio than Xiaomi Redmi Note 9. |
| HDR | - | Yes | Sony XPERIA 1 IV has HDR. |
| Display Enhancement Technology | - | Motion Blur Reduction 240Hz | |
| Display Refresh Rate | - | 120 Hz | |
| Touch Sampling Rate | - | 240 Hz | |
| Display Features | Reading mode 2.0, Dot Display, Full Screen gestures | Creator mode powered by CineAlta, X1 for mobile image processing engine, Dark mode, BT.2020, 10 bit tonal gradation, Illuminant D65 White point, 100% DCI-P3 | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 5 (scratch resistant glass) | Corning Gorilla Glass Victus (scratch resistant glass) |
| PROCESSOR | Xiaomi Redmi Note 9 | Sony XPERIA 1 IV |
|---|
| Processor Type (CPU) | MediaTek Helio G85 | Qualcomm Snapdragon 8 Gen 1 | |
|---|---|---|---|
| Clock Speed | 2 GHz | 3 GHz | Sony XPERIA 1 IV has higher clock speed than Xiaomi Redmi Note 9. |
| Processor Core Qty | 8-core | - | |
| Graphics System (GPU) | ARM G52 MC2 | Qualcomm ADRENO |
| MEMORY | Xiaomi Redmi Note 9 | Sony XPERIA 1 IV |
|---|
| RAM | 3 GB | 12 GB | Sony XPERIA 1 IV has more RAM than Xiaomi Redmi Note 9. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 256 GB | Sony XPERIA 1 IV has more internal memory than Xiaomi Redmi Note 9. |
| Memory Interface | - | UFS | |
| Supported Flash Memory Cards (Expandable Memory) | microSD | microSDHC, microSD, microSDXC - up to 1 TB |
| CAMERA | Xiaomi Redmi Note 9 | Sony XPERIA 1 IV |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 4 | 3 | |
|---|---|---|---|
| Sensor Resolution | 48 Megapixel | 12 Megapixel | Xiaomi Redmi Note 9 has better camera resolution than Sony XPERIA 1 IV. |
| Sensor Size | 1/2" | 1/1.7" | Xiaomi Redmi Note 9 has better camera sensor size than Sony XPERIA 1 IV. |
| Sensor Type | - | Exmor RS CMOS | |
| Lens Aperture | F/1.79 | F/1.7 | Sony XPERIA 1 IV has better lens aperture than Xiaomi Redmi Note 9. |
| Lens Construction | 6-element | - | |
| Field of View (FoV) | 79.4 degree(s) | 82 degree(s) | Sony XPERIA 1 IV has larger lens field of view than Xiaomi Redmi Note 9. |
| Pixel Size | 0.8 μm | - | |
| Optical Image Stabiliser (OIS) | - | Optical Image Stabiliser (OIS) | Sony XPERIA 1 IV has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Minimum Focal Length (Focal Distance) | - | 24 mm | |
| 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 | Burst mode, SteadyShot, Intelligent Active Mode, Vlog mode, Videography Pro, VENICE CS, Soft Monochrome | |
| Face Recognition (Face ID) | Face recognition | - | Xiaomi Redmi Note 9 has 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 | 3840 x 2160 (4K) at 30 fps, 3840 x 2160 (4K) at 60 fps, 3840 x 2160 (4K) at 24 fps, 3840 x 2160 (4K) at 25 fps, 3840 x 2160 (4K) 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 | Object tracking, Stereo Recording, EIS video stabilisation, BIONZ X for mobile, up to 20 fps AF/AE, up to 60 times per second continuous AF / AE calculation, Real-time Eye AF for humans and animals, Cinematography Pro powered by CineAlta, Intelligent wind filter, 5-Axis Stabilisation, 4K HDR video recording, Real-Time Tracking, Optical SteadyShot with FlawlessEye, ZEISS Optics, AI subject detection |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 8 Megapixel | 12 Megapixel | Sony XPERIA 1 IV has better second camera resolution than Xiaomi Redmi Note 9. |
|---|---|---|---|
| Sensor Size (2nd Camera) | 1/4" | 1/3.5" | Xiaomi Redmi Note 9 has better second camera sensor size than Sony XPERIA 1 IV. |
| Sensor Type (2nd Camera) | - | Exmor RS CMOS | |
| Lens Type (2nd Camera) | Ultra wide-angle lens | - | |
| Lens Aperture (2nd Camera) | F/2.2 | F/2.3 - f/2.8 | Xiaomi Redmi Note 9 has better second camera lens aperture than Xiaomi Redmi Note 9. |
| Lens Element Qty (2nd Camera) | 5-element | - | |
| Field of View (2nd Camera) | 118 degree(s) | 28 degree(s) | Xiaomi Redmi Note 9 has larger second camera lens field of view than Sony XPERIA 1 IV. |
| Pixel Size (2nd Camera) | 1.2 μm | - | |
| Camera Features (2nd Camera) | 5-piece lens | - |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 2 Megapixel | 12 Megapixel | Sony XPERIA 1 IV has higher resolution third camera than Xiaomi Redmi Note 9. |
|---|---|---|---|
| Sensor Size (3rd Camera) | - | 1/2.5" | |
| Sensor Name (3rd Camera) | - | Sony Exmor RS sensor | |
| Lens Aperture (3rd Camera) | F/2.4 | F/2.2 | Sony XPERIA 1 IV has better third camera lens aperture than Xiaomi Redmi Note 9. |
| Field of View (3rd Camera) | - | 124 degree(s) | |
| Pixel Size (3rd Camera) | 1.75 μm | - | |
| Minimum Focal Length (3rd Camera) | - | 16 mm | |
| 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) | 13 Megapixel | 12 Megapixel | Xiaomi Redmi Note 9 has better front camera resolution than Sony XPERIA 1 IV. |
| Sensor Size (Front) | 1/3.06" | 1/2.9" | Xiaomi Redmi Note 9 has better front camera sensor size than Sony XPERIA 1 IV. |
| Sensor Name (Front) | - | Sony Exmor RS sensor | |
| Lens Aperture (Front) | F/2.25 | F/2.0 | Sony XPERIA 1 IV has better front lens aperture than Xiaomi Redmi Note 9. |
| Lens Element Qty (Front) | 5-element | - | |
| Field of View (Front) | 74 degree(s) | 83 degree(s) | Sony XPERIA 1 IV has larger front lens field of view than Xiaomi Redmi Note 9. |
| Pixel Size (Front) | 1.12 μm | - | |
| Special Effects (Front) | HDR | HDR | |
| Camera Modes (Front) | Panoramic selfies, AI portrait mode, AI Beautify | SteadyShot, Intelligent Active Mode, Selfie portrait | |
| Face Recognition (Face ID) | Face recognition | - | Xiaomi Redmi Note 9 has face detection. |
| Light Source (Front) | Display flash | Display flash | |
| Camera Features (Front) | Palm shutter, AI silhouette detection | Hand Shutter |
| BATTERY AND CHARGING | Xiaomi Redmi Note 9 | Sony XPERIA 1 IV |
|---|
| Battery Capacity (Battery Size) | 5020 mAh | 5000 mAh | Xiaomi Redmi Note 9 has larger battery capacity than Sony XPERIA 1 IV. |
|---|---|---|---|
| Fast Charging Technology | - | Xperia-Adaptive Charging, Power Delivery | Sony XPERIA 1 IV has fast charging technology. |
| Wireless Charging | - | Yes | Sony XPERIA 1 IV can be charged wirelessly. |
| Wireless Charging Standards | - | Qi | |
| 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 |
- | |
| Battery Technology | Lithium polymer | - |
| CELLULAR | Xiaomi Redmi Note 9 | Sony XPERIA 1 IV |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 5G | Sony XPERIA 1 IV has more advanced generation mobile network. |
| Operating System | - | Android 12 | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou, Galileo | A-GPS, GLONASS, BeiDou, Galileo, QZSS |
| COMMUNICATIONS | Xiaomi Redmi Note 9 | Sony XPERIA 1 IV |
|---|
| Data Transmission | VoLTE, FDD-LTE, TDD-LTE | LTE, 5G NR FR1 | |
|---|---|---|---|
| 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 6, Band 8, Band 19 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 900 | 2100, 1900, 1700, 850, 800, 900, 800 | |
| 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 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 17, Band 19, Band 20, Band 25, Band 26, Band 28, Band 29, Band 32, Band 34, Band 38, Band 39, Band 40, Band 41, Band 46, Band 66 | |
| 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 | 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 upper, FDD 800 DD, FDD 1900+, FDD 850+, FDD 700 APT, FDD 700d, FDD 1500 L, TDD 2000, TDD 2600, TDD 1900, TDD 2300, TDD 2500, TDD 5150, FDD 1700 - 2110 AWS-3 | |
| 5G NR Band | - | N1, n3, n5, n7, n8, n20, n28, n38, n41, n77, n78, n40 | |
| 5G NR Frequency | - | FDD 2100, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 2500, TDD TD 3700, TDD TD 3500, TDD 2300 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac/ax, Wi-Fi 6E | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.2 LE | |
| NFC | - | Yes | Sony XPERIA 1 IV has NFC reader for mobile payments. |
| MEDIA | Xiaomi Redmi Note 9 | Sony XPERIA 1 IV |
|---|
| Supported Digital Audio Standards | WAV, AAC, AMR, MP3, FLAC, APE (Monkey's Audio) | PCM, MP3, FLAC, AAC-LC, AAC +, eAAC+, MIDI, DSD, LDAC, ALAC, OPUS, AMR-WB, AMR-NB, Vorbis, AAC-ELD, Dolby Atmos, Dolby-AC4, 360 Reality Audio Music Format | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, XviD, M4V, MP4 | MPEG-4, H.264, H.263, VP8, VP9, H.265, AV1 | |
| Sound Enhancements | - | Dolby Atmos sound technology, Hi-Res audio, DSEE Ultimate, Hi-Res audio wireless, Qualcomm aptX Adaptive, 360 Reality Audio Certified, 360 Reality Audio Upmix, Music Pro, PS Remote Play | |
| Audio Amplifier | Smart PA | - |
| FEATURES | Xiaomi Redmi Note 9 | Sony XPERIA 1 IV |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | - | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor, infrared (IR) sensor | - | |
| Security Devices | Face recognition, fingerprint reader | Fingerprint reader | |
| Additional Phone Features | Infrared remote control, HyperEngine technology | TTY compatible, Text-to-Speech (text recognition), multitasking, Battery Care, STAMINA Mode, TalkBack, Dynamic vibration system, Game Enhancer, DUALSHOCK 4 control compatibility, Google Cast, Qualcomm Snapdragon Elite Gaming, Battery Share function, DualSense control compatibility, full-stage stereo speakers |
| OTHERS | Xiaomi Redmi Note 9 | Sony XPERIA 1 IV |
|---|
| Included Accessories | Protective cover, power adapter, SIM card removal tool, USB-C cable | - | |
|---|---|---|---|
| Compliant Standards | TUV Rheinland Low Blue Light Certification | IPX5, HAC (Hearing Aid Compatible), IPX8, IP6X, ITU-R BT.2020, USB Power Delivery |
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