Xiaomi Redmi Note 9 vs. OPPO Reno4 Z 5G

Phone Comparison, Reviews and Tests

In depth comparison and review of Xiaomi Redmi Note 9 and OPPO Reno4 Z 5G. 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.

Phone Specifications Comparison

Xiaomi Redmi Note 9 vs. OPPO Reno4 Z 5G Comparison Chart
DESIGN AND DIMENSIONS Xiaomi Redmi Note 9 OPPO Reno4 Z 5G
Product Type Smartphone Smartphone
Manufacturer Model Number - CPH2065
Form Factor Touch Touch
Height 162.3 mm 163.8 mm OPPO Reno4 Z 5G has greater height than Xiaomi Redmi Note 9.
Width 77.2 mm 75.5 mm Xiaomi Redmi Note 9 has greater width than OPPO Reno4 Z 5G.
Depth 8.9 mm 8.1 mm OPPO Reno4 Z 5G is narrower than Xiaomi Redmi Note 9.
Weight 199 g 184 g OPPO Reno4 Z 5G is lighter than Xiaomi Redmi Note 9.
Body Colour Forest green Ink black | Dew white
Protection Splashproof -
Waterproof (Water-resistant) - -
SAR Value 2.262 W/kg (limb), 1.138 W/kg (body), 0.795 W/kg (head) 0.905 W/kg (head), 0.88 W/kg (head), 2.686 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
SIM Card Qty Dual-SIM Dual-SIM
SIM Card Configuration Details Nano SIM + nano SIM/microSD -
DISPLAY Xiaomi Redmi Note 9 OPPO Reno4 Z 5G
Display Type - LCD display
Display Technology - LTPS
Screen Size (Display Size) 6.53" 6.57" OPPO Reno4 Z 5G has larger screen size than Xiaomi Redmi Note 9.
Screen Resolution (Display Resolution) 2340 x 1080 pixels 2400 x 1080 pixels OPPO Reno4 Z 5G has better screen resolution than Xiaomi Redmi Note 9.
Display Format Full HD+ Full HD+
Pixel Density - 401 ppi
Aspect Ratio 19.5:9 -
Max Brightness 450 cd/m² 480 cd/m² OPPO Reno4 Z 5G has better display brightness than Xiaomi Redmi Note 9.
Colour Depth - 16.7 million colours
Contrast Ratio 1500:1 1500:1 Both phones have the same display contrast ratio.
Display Refresh Rate - 120 Hz
Touch Sampling Rate - 120 Hz
Display Features Reading mode 2.0, Dot Display, Full Screen gestures Dark mode
Display Protection (Screen Protector) Corning Gorilla Glass 5 (scratch resistant glass) Corning Gorilla Glass 3 (scratch resistant glass)
PROCESSOR Xiaomi Redmi Note 9 OPPO Reno4 Z 5G
Processor Type (CPU) MediaTek Helio G85 MediaTek Dimensity 800 5G
Processor Number - MT6873V
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 Mali-G57 MC4
MEMORY Xiaomi Redmi Note 9 OPPO Reno4 Z 5G
RAM 3 GB LPDDR4X SDRAM - 8 GB OPPO Reno4 Z 5G has more RAM than Xiaomi Redmi Note 9.
Internal Memory Size (Storage Capacity) 64 GB 128 GB OPPO Reno4 Z 5G has more internal memory than Xiaomi Redmi Note 9.
Memory Interface - UFS 2.1
Supported Flash Memory Cards (Expandable Memory) microSD -
CAMERA Xiaomi Redmi Note 9 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 9.
Lens Construction 6-element 6-element
Field of View (FoV) 79.4 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 9 has face detection.
Light Source Flash LED flash
Still Image Resolutions - 8000 x 6000
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, 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.
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 5-element
Field of View (2nd Camera) 118 degree(s) 119 degree(s) OPPO Reno4 Z 5G has larger second camera lens field of view than Xiaomi Redmi Note 9.
Pixel Size (2nd Camera) 1.2 μm 1.12 μm Xiaomi Redmi Note 9 has larger second camera pixel size than OPPO Reno4 Z 5G.
Minimum Focal Length (2nd Camera) - 16 mm
Camera Features (2nd Camera) 5-piece lens 5-piece lens
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 1.75 μm Both phones have the same third camera pixel size.
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.
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 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) 13 Megapixel 16 Megapixel OPPO Reno4 Z 5G has better front camera resolution than Xiaomi Redmi Note 9.
Sensor Size (Front) 1/3.06" -
Lens Aperture (Front) F/2.25 F/2.0 OPPO Reno4 Z 5G 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 μm Xiaomi Redmi Note 9 has larger front camera pixel size than OPPO Reno4 Z 5G.
Special Effects (Front) HDR HDR
Camera Modes (Front) Panoramic selfies, AI portrait mode, AI Beautify Panorama, Time-lapse mode, Slow motion mode, night mode, Expert Mode, Portrait
Face Recognition (Face ID) Face recognition - Xiaomi Redmi Note 9 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) 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 9 OPPO Reno4 Z 5G
Battery Capacity (Battery Size) 5020 mAh 4000 mAh Xiaomi Redmi Note 9 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 16 hrs
Playback (Music): up to 147 hrs
Navigation: up to 16 hrs
-
Battery Technology Lithium polymer Lithium Ion
CELLULAR Xiaomi Redmi Note 9 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)
Navigation GPS, A-GPS, GLONASS, BeiDou, Galileo GPS, A-GPS, GLONASS, BeiDou, Galileo, QZSS
COMMUNICATIONS Xiaomi Redmi Note 9 OPPO Reno4 Z 5G
Data Transmission 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 41 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, TDD 2500 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.
MEDIA Xiaomi Redmi Note 9 OPPO Reno4 Z 5G
Supported Digital Audio Standards WAV, AAC, AMR, MP3, FLAC, APE (Monkey's Audio) 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 9 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, ambient light sensor, proximity sensor, digital compass, gyro sensor, infrared (IR) sensor Accelerometer, ambient light sensor, proximity sensor, geomagnetic sensor, gravity sensor
Security Devices Face recognition, fingerprint reader Face recognition, fingerprint reader (side)
Additional Phone Features Infrared remote control, HyperEngine technology Multitasking, Fast Charging, OPPO Relax
OTHERS Xiaomi Redmi Note 9 OPPO Reno4 Z 5G
Included Accessories Protective cover, power adapter, SIM card removal tool, USB-C cable Headphones, power adapter, SIM card removal tool, USB-C cable, protective case
Compliant Standards TUV Rheinland Low Blue Light Certification TUV Rheinland Low Blue Light Certification
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