Detailed comparison and review of Xiaomi Redmi Note 9S and OPPO Reno4 Z 5G. 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 | OPPO Reno4 Z 5G |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | CPH2065 | |
| Form Factor | Touch | Touch | |
| Height | 165.75 mm | 163.8 mm | Xiaomi Redmi Note 9S has greater height than OPPO Reno4 Z 5G. |
| Width | 76.68 mm | 75.5 mm | Xiaomi Redmi Note 9S has greater width than OPPO Reno4 Z 5G. |
| Depth | 8.8 mm | 8.1 mm | OPPO Reno4 Z 5G is narrower than Xiaomi Redmi Note 9S. |
| Weight | 209 g | 184 g | OPPO Reno4 Z 5G is lighter than Xiaomi Redmi Note 9S. |
| Body Colour | Aurora blue | Ink black | Dew white | |
| 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) | 0.905 W/kg (head), 0.88 W/kg (head), 2.686 W/kg (limb) | |
| 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 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 | OPPO Reno4 Z 5G |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | - | LTPS | |
| Screen Size (Display Size) | 6.67" | 6.57" | Xiaomi Redmi Note 9S has larger screen size than OPPO Reno4 Z 5G. |
| Screen Resolution (Display Resolution) | 2400 x 1080 pixels | 2400 x 1080 pixels | Both phones have the same screen resolution. |
| Display Format | Full HD+ | Full HD+ | |
| Pixel Density | - | 401 ppi | |
| Max Brightness | - | 480 cd/m² | |
| Colour Depth | - | 16.7 million colours | |
| Contrast Ratio | 1500:1 | 1500:1 | Both phones have the same display contrast ratio. |
| HDR | Yes | - | Xiaomi Redmi Note 9S has HDR. |
| Display Refresh Rate | - | 120 Hz | |
| Touch Sampling Rate | - | 120 Hz | |
| Display Features | Reading mode 2.0, Dot Display | Dark mode | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 5 (scratch resistant glass) | Corning Gorilla Glass 3 (scratch resistant glass) |
| PROCESSOR | Xiaomi Redmi Note 9S | OPPO Reno4 Z 5G |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 720G | MediaTek Dimensity 800 5G | |
|---|---|---|---|
| Processor Number | - | MT6873V | |
| Clock Speed | 2.3 GHz | 2 GHz | Xiaomi Redmi Note 9S has higher clock speed than OPPO Reno4 Z 5G. |
| 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 | Mali-G57 MC4 |
| MEMORY | Xiaomi Redmi Note 9S | OPPO Reno4 Z 5G |
|---|
| RAM | 4 GB | LPDDR4X SDRAM - 8 GB | OPPO Reno4 Z 5G has more RAM than Xiaomi Redmi Note 9S. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 128 GB | OPPO Reno4 Z 5G 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 | - |
| CAMERA | Xiaomi Redmi Note 9S | OPPO Reno4 Z 5G |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 4 | 4 | |
|---|---|---|---|
| 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. |
| Lens Aperture | F/1.79 | F/1.7 | OPPO Reno4 Z 5G has better lens aperture than Xiaomi Redmi Note 9S. |
| Lens Construction | 6-element | 6-element | |
| Field of View (FoV) | 79 degree(s) | - | |
| Pixel Size | 0.8 μm | 0.8 μm | Both phones have the same camera pixel size. |
| Focus Adjustment | Automatic | Automatic | |
| Minimum Focal Length (Focal Distance) | - | 25 mm | |
| Special Effects | HDR, Kaleidoscope | Live HDR, Bokeh effect, Stickers | |
| Camera Modes | Burst mode, Panorama, night mode, Smart ultra-wide angle mode, Photo timer, Custom watermark, Documents, Beautify, Levelling, Cinematic portraits | Panorama, Time-lapse mode, Slow motion mode, Expert Mode, Portrait, Night, Dazzle Colour Mode, Ultra dark 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 | 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, 3840 x 2160 (4K) 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), EIS video stabilisation, Ultra Steady Video, contrast detection auto-focus (CDAF), 4-in-1 pixel binning |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 8 Megapixel | 8 Megapixel | Both phones have the same second camera resolution. |
|---|---|---|---|
| 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) | 119 degree(s) | 119 degree(s) | Both phones have the same second camera lens field of view. |
| Pixel Size (2nd Camera) | 1.12 μm | 1.12 μm | Both phones have the same second camera pixel size. |
| Minimum Focal Length (2nd Camera) | - | 16 mm | |
| Camera Features (2nd Camera) | - | 5-piece lens |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 5 Megapixel | 2 Megapixel | Xiaomi Redmi Note 9S has higher resolution third camera than OPPO Reno4 Z 5G. |
|---|---|---|---|
| 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) | 1.12 μm | 1.75 μm | OPPO Reno4 Z 5G has larger third camera pixel size than Xiaomi Redmi Note 9S. |
| Camera Functions (3rd Camera) | Macro camera | - | |
| Camera Features (3rd Camera) | AF (2cm-10cm) | - |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | 2 Megapixel | 2 Megapixel | Both phones have the same resolution of the fourth camera. |
|---|---|---|---|
| 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 | Monochrome |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 2 | |
|---|---|---|---|
| Sensor Resolution (Front) | 16 Megapixel | 16 Megapixel | Both phones have the same front camera resolution. |
| Lens Aperture (Front) | F/2.48 | F/2.0 | OPPO Reno4 Z 5G has better front lens aperture than Xiaomi Redmi Note 9S. |
| Pixel Size (Front) | 1 μm | 1 μm | Both phones have the same front camera pixel size. |
| Special Effects (Front) | HDR | HDR | |
| Camera Modes (Front) | Panoramic selfies, AI portrait mode, AI Beautify, Slo-mo Selfie | Panorama, Time-lapse mode, Slow motion mode, night mode, Expert Mode, Portrait | |
| Face Recognition (Face ID) | Face recognition | - | Xiaomi Redmi Note 9S has face detection. |
| Light Source (Front) | Display flash | Display flash | |
| Still Image Resolutions (Front) | - | 4608 x 3456 | |
| 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 | 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) | - | 3D depth camera | |
| Camera Features (2nd Front) | - | 3-piece lens |
| BATTERY AND CHARGING | Xiaomi Redmi Note 9S | OPPO Reno4 Z 5G |
|---|
| Battery Capacity (Battery Size) | 5020 mAh | 4000 mAh | Xiaomi Redmi Note 9S has larger battery capacity than OPPO Reno4 Z 5G. |
|---|---|---|---|
| Recharge Time (Charging Time) | - | 116 min | |
| Talk Time | 1980 minutes | - | |
| Run Time Details | Talk: up to 1980 min Gaming: up to 13 hrs Playback (Music): up to 147 hrs Navigation: up to 16 hrs |
- | |
| Battery Technology | Lithium Ion | Lithium Ion |
| CELLULAR | Xiaomi Redmi Note 9S | OPPO Reno4 Z 5G |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 5G | OPPO Reno4 Z 5G has more advanced generation mobile network. |
| Operating System | - | ColorOS 7.1 (based on Android 10) | |
| User Interface | MIUI 10 | - | |
| Payment Technology | Google Pay | - | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou, Galileo | GPS, A-GPS, GLONASS, BeiDou, Galileo, QZSS |
| COMMUNICATIONS | Xiaomi Redmi Note 9S | OPPO Reno4 Z 5G |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-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 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 38, Band 39, Band 40, Band 41, 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 | 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, TDD 2600, TDD 1900, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | |
| 5G NR Band | - | N1, n3, n5, n7, n8, n20, n28, n38, n41, n77, n78, n79, 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 TD 4500, TDD 2300 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.1 | |
| NFC | - | Yes | OPPO Reno4 Z 5G has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | Xiaomi Redmi Note 9S | OPPO Reno4 Z 5G |
|---|
| Supported Digital Audio Standards | WAV, AAC, AMR, MP3, FLAC, APE (Monkey's Audio), MP4 | WAV, WMA, AAC, AMR, MP3, FLAC, OGG, APE (Monkey's Audio), apt-X, LDAC, MID, SBC, apt-X HD | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, XviD, M4V, MP4 | MKV, FLV, AVI, WMV, ASF, 3GP, H.264, H.265, MP4 | |
| Sound Enhancements | - | Hi-Res audio certified, Dirac 2.0 sound effect | |
| Audio Amplifier | Smart PA | - |
| FEATURES | Xiaomi Redmi Note 9S | OPPO Reno4 Z 5G |
|---|
| 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, proximity sensor, geomagnetic sensor, gravity sensor | |
| Security Devices | Face recognition, fingerprint reader (side) | Face recognition, 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 | Multitasking, Fast Charging, OPPO Relax |
| OTHERS | Xiaomi Redmi Note 9S | OPPO Reno4 Z 5G |
|---|
| Included Accessories | Protective cover, SIM card removal tool, USB-C cable, 18W charger | Headphones, power adapter, SIM card removal tool, USB-C cable, protective case | |
|---|---|---|---|
| Compliant Standards | TUV Rheinland | TUV Rheinland Low Blue Light Certification |
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