Samsung Galaxy J7 Duo vs. OPPO Reno4 Z 5G

Phone Comparison, Reviews and Tests

Detailed comparison and review of Samsung Galaxy J7 Duo 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.

Phone Specifications Comparison

Samsung Galaxy J7 Duo vs. OPPO Reno4 Z 5G Comparison Chart
DESIGN AND DIMENSIONS Samsung Galaxy J7 Duo OPPO Reno4 Z 5G
Product Type Smartphone Smartphone
Manufacturer Model Number SM-J720F CPH2065
Form Factor Touch Touch
Height 153.5 mm 163.8 mm OPPO Reno4 Z 5G has greater height than Samsung Galaxy J7 Duo.
Width 77.2 mm 75.5 mm Samsung Galaxy J7 Duo has greater width than OPPO Reno4 Z 5G.
Depth 8.2 mm 8.1 mm OPPO Reno4 Z 5G is narrower than Samsung Galaxy J7 Duo.
Weight 174 g 184 g Samsung Galaxy J7 Duo is lighter than Samsung Galaxy J7 Duo.
Body Colour Black Ink black | Dew white
Waterproof (Water-resistant) - -
SAR Value 1.397 W/kg (body), 0.543 W/kg (head) 0.905 W/kg (head), 0.88 W/kg (head), 2.686 W/kg (limb)
Connector Type Micro-USB - 5 pin Micro-USB Type B
Headset jack - mini-phone 3.5mm
USB Type-C - 24 pin USB-C
Headset jack - mini-phone 3.5mm
SIM Card Type (Size) Micro SIM Nano SIM
SIM Card Qty Single-SIM Dual-SIM
DISPLAY Samsung Galaxy J7 Duo OPPO Reno4 Z 5G
Display Type OLED display LCD display
Display Technology HD Super AMOLED LTPS
Screen Size (Display Size) 5.5" 6.57" OPPO Reno4 Z 5G has larger screen size than Samsung Galaxy J7 Duo.
Screen Resolution (Display Resolution) 1280 x 720 pixels 2400 x 1080 pixels OPPO Reno4 Z 5G has better screen resolution than Samsung Galaxy J7 Duo.
Display Format HD Full HD+
Pixel Density - 401 ppi
Max Brightness - 480 cd/m²
Colour Depth 16.7 million colours 16.7 million colours Both phones have the same color depth.
Contrast Ratio - 1500:1
Display Refresh Rate - 120 Hz
Touch Sampling Rate - 120 Hz
Display Features - Dark mode
Display Protection (Screen Protector) - Corning Gorilla Glass 3 (scratch resistant glass)
PROCESSOR Samsung Galaxy J7 Duo OPPO Reno4 Z 5G
Processor Type (CPU) - MediaTek Dimensity 800 5G
Processor Number - MT6873V
Clock Speed 1.6 GHz 2 GHz OPPO Reno4 Z 5G has higher clock speed than Samsung Galaxy J7 Duo.
Processor Core Qty 8-core 8-core Both phones have the same number of phone cores.
Graphics System (GPU) - Mali-G57 MC4
MEMORY Samsung Galaxy J7 Duo OPPO Reno4 Z 5G
RAM 3 GB LPDDR4X SDRAM - 8 GB OPPO Reno4 Z 5G has more RAM than Samsung Galaxy J7 Duo.
Internal Memory Size (Storage Capacity) 32 GB 128 GB OPPO Reno4 Z 5G has more internal memory than Samsung Galaxy J7 Duo.
User Memory 21.9 GB -
Memory Interface - UFS 2.1
Supported Flash Memory Cards (Expandable Memory) microSDHC, microSDXC - up to 256 GB -
CAMERA Samsung Galaxy J7 Duo OPPO Reno4 Z 5G
MAIN CAMERA
Number of Main Cameras 2 4
Sensor Resolution 13 Megapixel 48 Megapixel OPPO Reno4 Z 5G has better camera resolution than Samsung Galaxy J7 Duo.
Sensor Size - 1/2"
Lens Aperture F/1.9 F/1.7 OPPO Reno4 Z 5G has better lens aperture than Samsung Galaxy J7 Duo.
Lens Construction - 6-element
Pixel Size - 0.8 μm
Focus Adjustment Automatic Automatic
Minimum Focal Length (Focal Distance) - 25 mm
Special Effects - Live HDR, Bokeh effect, Stickers
Camera Modes - Panorama, Time-lapse mode, Slow motion mode, Expert Mode, Portrait, Night, Dazzle Colour Mode, Ultra dark mode
Light Source LED flash LED flash
Still Image Resolutions - 8000 x 6000
Video Resolutions 1920 x 1080 (1080p) at 30 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) - 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) 5 Megapixel 8 Megapixel OPPO Reno4 Z 5G has better second camera resolution than Samsung Galaxy J7 Duo.
Lens Type (2nd Camera) - Ultra wide-angle lens
Lens Aperture (2nd Camera) F/1.9 F/2.2 Samsung Galaxy J7 Duo has better second camera lens aperture than Samsung Galaxy J7 Duo.
Lens Element Qty (2nd Camera) - 5-element
Field of View (2nd Camera) - 119 degree(s)
Pixel Size (2nd Camera) - 1.12 μm
Minimum Focal Length (2nd Camera) - 16 mm
Camera Features (2nd Camera) - 5-piece lens
THIRD CAMERA
Sensor Resolution (3rd Camera) - 2 Megapixel
Lens Aperture (3rd Camera) - F/2.4
Lens Element Qty (3rd Camera) - 3-element
Pixel Size (3rd Camera) - 1.75 μm
FOURTH CAMERA
Sensor Resolution (4th Camera) - 2 Megapixel
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) - Monochrome
FRONT CAMERA
Number of Front Cameras 1 2
Sensor Resolution (Front) 8 Megapixel 16 Megapixel OPPO Reno4 Z 5G has better front camera resolution than Samsung Galaxy J7 Duo.
Lens Aperture (Front) F/1.9 F/2.0 Samsung Galaxy J7 Duo has better front lens aperture than Samsung Galaxy J7 Duo.
Pixel Size (Front) - 1 μm
Special Effects (Front) - HDR
Camera Modes (Front) - Panorama, Time-lapse mode, Slow motion mode, night mode, Expert Mode, Portrait
Light Source (Front) - 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) - 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 Samsung Galaxy J7 Duo OPPO Reno4 Z 5G
Battery Capacity (Battery Size) 3000 mAh 4000 mAh OPPO Reno4 Z 5G has larger battery capacity than Samsung Galaxy J7 Duo.
Recharge Time (Charging Time) - 116 min
Talk Time 1200 minutes -
Run Time Details Active online usage (WCDMA): up to 11 hrs
Active online usage (LTE): up to 13 hrs
Active online usage (Wi-Fi): up to 13 hrs
Playback (video): up to 17 hrs
Playback (audio): up to 66 hrs
Talk (WCDMA): up to 1200 min
-
Battery Technology - Lithium Ion
CELLULAR Samsung Galaxy J7 Duo 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 Google Android ColorOS 7.1 (based on Android 10)
Intelligent Assistant Bixby -
Navigation GPS, GLONASS, BeiDou GPS, A-GPS, GLONASS, BeiDou, Galileo, QZSS
COMMUNICATIONS Samsung Galaxy J7 Duo OPPO Reno4 Z 5G
Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE GPRS, EDGE, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE, 5G NR FR1
2G Band 850 GSM, 900 GSM, 1800 GSM, 1900 GSM 850 GSM, 900 GSM, 1800 GSM, 1900 GSM
3G UMTS Band Band 1, Band 2, Band 5, Band 8 Band 1, Band 2, Band 4, Band 5, Band 6, Band 8, Band 19
3G UMTS Frequency 2100, 1900, 850, 900 2100, 1900, 1700, 850, 800, 900, 800
4G LTE Band Band 1, Band 3, Band 5, Band 7, Band 8, Band 20, 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 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, 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, ANT+/ANT 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 Samsung Galaxy J7 Duo OPPO Reno4 Z 5G
Supported Digital Audio Standards WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID WAV, WMA, AAC, AMR, MP3, FLAC, OGG, APE (Monkey's Audio), apt-X, LDAC, MID, SBC, apt-X HD
Supported Digital Video Standards MKV, FLV, AVI, MPEG-4, WMV, ASF, 3GP, M4V, WebM, 3G2 MKV, FLV, AVI, WMV, ASF, 3GP, H.264, H.265, MP4
Sound Enhancements - Hi-Res audio certified, Dirac 2.0 sound effect
FEATURES Samsung Galaxy J7 Duo 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, proximity 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 - Multitasking, Fast Charging, OPPO Relax
OTHERS Samsung Galaxy J7 Duo OPPO Reno4 Z 5G
Included Accessories Power adapter Headphones, power adapter, SIM card removal tool, USB-C cable, protective case
Compliant Standards - TUV Rheinland Low Blue Light Certification
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