In depth comparison and review of OPPO Reno4 5G and Xiaomi Redmi Note 9T. 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 | OPPO Reno4 5G | Xiaomi Redmi Note 9T |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | CPH2091 | - | |
| Form Factor | Touch | Touch | |
| Height | 159.3 mm | 161.9 mm | Xiaomi Redmi Note 9T has greater height than OPPO Reno4 5G. |
| Width | 74 mm | 77.3 mm | Xiaomi Redmi Note 9T has greater width than OPPO Reno4 5G. |
| Depth | 7.8 mm | 9.05 mm | OPPO Reno4 5G is narrower than OPPO Reno4 5G. |
| Weight | 183 g | 199 g | OPPO Reno4 5G is lighter than OPPO Reno4 5G. |
| Body Colour | Space black | Galactic blue | Daybreak purple | |
| Protection | - | Splashproof | |
| Waterproof (Water-resistant) | - | - | |
| IP rating | IP54 | - | |
| SAR Value | 0.886 W/kg (head), 1.155 W/kg (body), 2.165 W/kg (limb) | 0.937 W/kg (body), 0.592 W/kg (head), 1.981 W/kg (limb) | |
| Connector Type | USB Type-C - 24 pin USB-C | - | |
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | OPPO Reno4 5G | Xiaomi Redmi Note 9T |
|---|
| Display Type | OLED display | - | |
|---|---|---|---|
| Display Technology | AMOLED | - | |
| Screen Size (Display Size) | 6.4" | 6.53" | Xiaomi Redmi Note 9T has larger screen size than OPPO Reno4 5G. |
| Screen Resolution (Display Resolution) | 2400 x 1080 pixels | 2340 x 1080 pixels | OPPO Reno4 5G has better screen resolution than Xiaomi Redmi Note 9T. |
| Display Format | Full HD+ | Full HD+ | |
| Pixel Density | 409 ppi | 395 ppi | OPPO Reno4 5G has better pixel density than Xiaomi Redmi Note 9T. |
| Aspect Ratio | 20:9 | 19.5:9 | |
| Max Brightness | 800 cd/m² | 450 cd/m² | OPPO Reno4 5G has better display brightness than Xiaomi Redmi Note 9T. |
| Colour Depth | 16.7 million colours | - | |
| Contrast Ratio | 800000:1 | 1500:1 | OPPO Reno4 5G has better display contrast ratio than Xiaomi Redmi Note 9T. |
| Display Refresh Rate | 60 Hz | - | |
| Display Features | DCI-P3 Wide colour gamut, Dark mode, 180Hz sampling rate | Reading mode, night mode, Dot Display | |
| Display Protection (Screen Protector) | Corning Gorilla Glass (scratch resistant glass) | Corning Gorilla Glass 5 (scratch resistant glass) |
| PROCESSOR | OPPO Reno4 5G | Xiaomi Redmi Note 9T |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 765G | MediaTek Dimensity 800U | |
|---|---|---|---|
| Clock Speed | 2.4 GHz | 2.3 GHz | OPPO Reno4 5G has higher clock speed than Xiaomi Redmi Note 9T. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| Graphics System (GPU) | Qualcomm ADRENO 620 | Mali-G57 |
| MEMORY | OPPO Reno4 5G | Xiaomi Redmi Note 9T |
|---|
| RAM | LPDDR4X SDRAM - 8 GB | LPDDR4X SDRAM - 4 GB | OPPO Reno4 5G has more RAM than Xiaomi Redmi Note 9T. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 64 GB | OPPO Reno4 5G has more internal memory than Xiaomi Redmi Note 9T. |
| Memory Interface | UFS 2.1 | UFS 2.2 | |
| Supported Flash Memory Cards (Expandable Memory) | - | microSD |
| CAMERA | OPPO Reno4 5G | Xiaomi Redmi Note 9T |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 3 | 3 | |
|---|---|---|---|
| Sensor Resolution | 48 Megapixel | 48 Megapixel | Both phones have the same camera resolution. |
| Sensor Size | 1/2" | 1/2" | Both phones have the same camera sensor size. |
| Sensor Name | Sony Exmor RS IMX586 sensor | - | |
| Lens Aperture | F/1.7 | F/1.79 | OPPO Reno4 5G has better lens aperture than OPPO Reno4 5G. |
| Lens Construction | 6-element | - | |
| Pixel Size | 0.8 μm | 0.8 μm | Both phones have the same camera pixel size. |
| Focus Adjustment | Automatic | Automatic | |
| Laser Auto Focus | Yes | - | |
| Minimum Focal Length (Focal Distance) | 26 mm | - | |
| Special Effects | HDR, Bokeh effect | - | |
| Camera Modes | Time-lapse mode, night mode, Expert Mode, Text, AI Beautify, AI Portait, Pano mode, Dazzle Colour Mode | - | |
| Light Source | LED flash | 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, 1280 x 720 (720p) at 60 fps | 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 | |
| Camera Features (Functions) | Noise reduction, Phase Detect Auto-Focus (PDAF), Electronic Image Stabiliser (EIS), Closed loop processing, 4-in-1 Pixel technology, Ultra Steady Video, contrast detection auto-focus (CDAF), laser detection auto focus (LDAF) | 4-in-1 Super Pixel |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 8 Megapixel | 2 Megapixel | OPPO Reno4 5G has better second camera resolution than Xiaomi Redmi Note 9T. |
|---|---|---|---|
| Lens Type (2nd Camera) | Ultra wide-angle lens | - | |
| Lens Aperture (2nd Camera) | F/2.2 | F/2.4 | OPPO Reno4 5G has better second camera lens aperture than OPPO Reno4 5G. |
| Lens Element Qty (2nd Camera) | 5-element | - | |
| Field of View (2nd Camera) | 119 degree(s) | - | |
| Pixel Size (2nd Camera) | - | 1.75 μm | |
| Minimum Focal Length (2nd Camera) | 16 mm | - | |
| Camera Functions (2nd Camera) | Monochrome | Macro camera | |
| Camera Modes (2nd Camera) | Ultra Night Mode 3.0 | - | |
| Camera Features (2nd Camera) | 5-piece lens, Ultra Steady Video Pro | - |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 2 Megapixel | 2 Megapixel | Both phones have the same third camera resolution. |
|---|---|---|---|
| Lens Aperture (3rd Camera) | F/2.4 | F/2.4 | Both phones have the same lens aperture of the third camera. |
| Lens Element Qty (3rd Camera) | 3-element | - | |
| Pixel Size (3rd Camera) | - | 1.75 μm | |
| Camera Functions (3rd Camera) | - | Depth camera |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 2 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 32 Megapixel | 13 Megapixel | OPPO Reno4 5G has better front camera resolution than Xiaomi Redmi Note 9T. |
| Sensor Name (Front) | Sony Exmor RS IMX616 sensor | - | |
| Lens Aperture (Front) | F/2.4 | F/2.25 | Xiaomi Redmi Note 9T has better front lens aperture than OPPO Reno4 5G. |
| Lens Element Qty (Front) | 5-element | - | |
| Pixel Size (Front) | 0.8 μm | - | |
| Camera Modes (Front) | Panorama, Time-lapse mode, Slow motion mode, night mode, Expert Mode, AI Beauty, Portrait | - | |
| Face Recognition (Face ID) | - | Face recognition | Xiaomi Redmi Note 9T has face detection. |
| Light Source (Front) | Display flash | - | |
| Still Image Resolutions (Front) | 6560 x 4928 | - | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) 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 (Front) | Electronic Image Stabiliser (EIS), 5P lens | - |
| SECOND FRONT CAMERA |
|---|
| Sensor Resolution (2nd Front) | 2 Megapixel | - | |
|---|---|---|---|
| Lens Aperture (2nd Front) | F/2.4 | - | |
| Pixel Size (2nd Front) | 1.75 μm | - | |
| Camera Functions (2nd Front) | Portait camera | - | |
| Camera Features (2nd Front) | 3-piece lens | - |
| BATTERY AND CHARGING | OPPO Reno4 5G | Xiaomi Redmi Note 9T |
|---|
| Battery Capacity (Battery Size) | 4020 mAh | 5000 mAh | Xiaomi Redmi Note 9T has larger battery capacity than OPPO Reno4 5G. |
|---|---|---|---|
| Fast Charging Technology | SuperVOOC 2.0 Flash Charge | - | OPPO Reno4 5G has fast charging technology. |
| Recharge Time (Charging Time) | 36 min | - | |
| Standby Time | 390 hours | - | |
| Talk Time | 1560 minutes | - | |
| Run Time Details | Standby: up to 390 hrs Talk: up to 1560 min Playback (Music): up to 37 hrs Playback (video): up to 17.1 hrs |
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| CELLULAR | OPPO Reno4 5G | Xiaomi Redmi Note 9T |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 5G | 5G | Both phones have the same mobile network generation. |
| Operating System | ColorOS 7.2 (based on Android 10) | Android 10 | |
| User Interface | - | MIUI 12 | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou, Galileo, QZSS | GPS, GLONASS, Galileo |
| COMMUNICATIONS | OPPO Reno4 5G | Xiaomi Redmi Note 9T |
|---|
| Data Transmission | FDD-LTE, TDD-LTE, 5G NR FR1 | FDD-LTE, TDD-LTE, 5G NR FR1 | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | - | |
| 3G UMTS Band | Band 1, Band 2, Band 4, Band 5, Band 6, Band 8, Band 19 | Band 1, Band 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 800, 900, 800 | 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 17, Band 18, Band 19, Band 20, 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 12, Band 17, Band 18, Band 19, Band 20, Band 26, Band 28, Band 32, Band 38, Band 40, Band 41, Band 42 | |
| 4G LTE Frequency | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, 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 700a, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 850+, FDD 700 APT, FDD 1500 L, TDD 2600, TDD 2300, TDD 2500, TDD 3500 | |
| 5G NR Band | N1, n3, n5, n7, n8, n20, n28, n38, n41, n77, n78, n40 | N1, n3, n5, n7, n8, n20, n28, n38, n41, n77, n78, n79 | |
| 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 | 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 TD 4500 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 5.1 | Bluetooth 5.1 | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| MEDIA | OPPO Reno4 5G | Xiaomi Redmi Note 9T |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, AMR, MP3, FLAC, OGG, APE (Monkey's Audio), apt-X, LDAC, MID, SBC, apt-X HD, APTX-TWS+ | AAC, LDAC, LHDC | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, FLV, AVI, MOV, WMV, 3GP, MP4 | - | |
| Sound Enhancements | Dolby Atmos sound technology | - |
| FEATURES | OPPO Reno4 5G | Xiaomi Redmi Note 9T |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | - | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, pedometer, gyro sensor, geomagnetic sensor, gravity sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor, infrared (IR) sensor | |
| Security Devices | Fingerprint reader (under display) | Face recognition, fingerprint reader (side) | |
| Security Technology | - | AI face unlock | |
| Additional Phone Features | MU-MIMO technology, Google Lens | Infrared remote control, linear motor, WriteBooster technology, Host Performance Booster (HPB) technology |
| OTHERS | OPPO Reno4 5G | Xiaomi Redmi Note 9T |
|---|
| Included Accessories | Headphones, power adapter, SIM card removal tool, USB-C cable, protective case | Protective cover, power adapter, SIM card removal tool, USB-C cable | |
|---|---|---|---|
| Compliant Standards | IP54, TUV Rheinland Certified Safe Fast-Charge System | TUV Rheinland Low Blue Light Certification |
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