Samsung Galaxy J4 vs. OPPO A9 2020

Phone Comparison, Reviews and Tests

In depth comparison and review of Samsung Galaxy J4 and OPPO A9 2020. 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

Samsung Galaxy J4 vs. OPPO A9 2020 Comparison Chart
DESIGN AND DIMENSIONS Samsung Galaxy J4 OPPO A9 2020
Product Type Smartphone Smartphone
Manufacturer Model Number SM-J400F/DS CPH1941
Form Factor Touch Touch
Height 151 mm 163.6 mm OPPO A9 2020 has greater height than Samsung Galaxy J4.
Width 77.2 mm 75.6 mm Samsung Galaxy J4 has greater width than OPPO A9 2020.
Depth 8.1 mm 9.1 mm Samsung Galaxy J4 is narrower than Samsung Galaxy J4.
Weight 175 g 195 g Samsung Galaxy J4 is lighter than Samsung Galaxy J4.
Body Colour Black Marine green | Space purple
Body Material - 3D glass
Waterproof (Water-resistant) - -
SAR Value 1.492 W/kg (body), 0.356 W/kg (head) 0.976 W/kg (body), 0.847 W/kg (head), 2.118 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
Handset jack - mini-phone 3.5mm
SIM Card Type (Size) Micro SIM Nano SIM
SIM Card Qty Dual-SIM Dual-SIM
DISPLAY Samsung Galaxy J4 OPPO A9 2020
Display Type OLED display LCD display
Display Technology HD Super AMOLED TFT
Screen Size (Display Size) 5.5" 6.5" OPPO A9 2020 has larger screen size than Samsung Galaxy J4.
Screen Resolution (Display Resolution) 1280 x 720 pixels 1600 x 720 pixels OPPO A9 2020 has better screen resolution than Samsung Galaxy J4.
Display Format HD -
Pixel Density - 269 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 Enhancement Technology - Blue light filter
Display Features - In-Cell Display Technology, Sunlight screen
PROCESSOR Samsung Galaxy J4 OPPO A9 2020
Processor Type (CPU) - Qualcomm Snapdragon 665
Clock Speed 1.4 GHz -
Processor Core Qty Quad-core -
Graphics System (GPU) - Qualcomm ADRENO 610
MEMORY Samsung Galaxy J4 OPPO A9 2020
RAM 2 GB LPDDR4X SDRAM - 4 GB OPPO A9 2020 has more RAM than Samsung Galaxy J4.
Internal Memory Size (Storage Capacity) 16 GB 128 GB OPPO A9 2020 has more internal memory than Samsung Galaxy J4.
User Memory 9.6 GB -
Memory Interface - UFS 2.1
Supported Flash Memory Cards (Expandable Memory) microSDHC, microSDXC - up to 256 GB microSDHC, microSDXC - up to 256 GB
CAMERA Samsung Galaxy J4 OPPO A9 2020
MAIN CAMERA
Number of Main Cameras 1 4
Sensor Resolution 13 Megapixel 48 Megapixel OPPO A9 2020 has better camera resolution than Samsung Galaxy J4.
Sensor Size - 1/2.25"
Sensor Type - CMOS
Lens Aperture F/1.9 F/1.8 OPPO A9 2020 has better lens aperture than Samsung Galaxy J4.
Pixel Size - 0.8 μm
Focus Adjustment Automatic Automatic
Camera Modes - Panorama, Time-lapse mode, Slow motion mode, Beauty mode, Expert Mode, Portrait, Night, Ultra Night Mode 2.0
Light Source Flash LED flash
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) - Electronic Image Stabiliser (EIS)
SECOND CAMERA
Sensor Resolution (2nd Camera) - 8 Megapixel
Sensor Size (2nd Camera) - 1/4.0"
Lens Type (2nd Camera) - Ultra wide-angle lens
Lens Aperture (2nd Camera) - F/2.25
Field of View (2nd Camera) - 119 degree(s)
Pixel Size (2nd Camera) - 1.12 μm
THIRD CAMERA
Sensor Resolution (3rd Camera) - 2 Megapixel
Sensor Size (3rd Camera) - 1/5"
Lens Aperture (3rd Camera) - F/2.4
Pixel Size (3rd Camera) - 1.75 μm
FOURTH CAMERA
Sensor Resolution (4th Camera) - 2 Megapixel
Sensor Size (4th Camera) - 1/5"
Lens Aperture (4th Camera) - F/2.4
Pixel Size (4th Camera) - 1.75 μm
FRONT CAMERA
Number of Front Cameras 1 1
Sensor Resolution (Front) 5 Megapixel 16 Megapixel OPPO A9 2020 has better front camera resolution than Samsung Galaxy J4.
Sensor Size (Front) - 1/3.1"
Lens Aperture (Front) F/2.2 F/2.0 OPPO A9 2020 has better front lens aperture than Samsung Galaxy J4.
Pixel Size (Front) - 1 μm
Camera Modes (Front) - AI Beauty
Light Source (Front) LED flash -
Video Resolutions (Front) - 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps
BATTERY AND CHARGING Samsung Galaxy J4 OPPO A9 2020
Battery Capacity (Battery Size) 3000 mAh 5000 mAh OPPO A9 2020 has larger battery capacity than Samsung Galaxy J4.
Standby Time - 450 hours
Talk Time 1200 minutes 2700 minutes OPPO A9 2020 has longer battery life when making calls than Samsung Galaxy J4.
Run Time Details Active online usage (3G): 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 18 hrs
Playback (audio): up to 80 hrs
Talk (WCDMA): up to 1200 min
Standby: up to 450 hrs
Talk: up to 2700 min
CELLULAR Samsung Galaxy J4 OPPO A9 2020
Technology WCDMA (UMTS) / GSM WCDMA (UMTS) / GSM
Mobile Broadband Generation 4G 4G Both phones have the same mobile network generation.
Operating System Google Android ColorOS 6.0.1 (based on Android 9)
Navigation GPS, GLONASS, BeiDou GPS, A-GPS, GLONASS, BeiDou, Galileo
COMMUNICATIONS Samsung Galaxy J4 OPPO A9 2020
Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE
2G Band 850 GSM, 900 GSM, 1800 GSM 850 GSM, 900 GSM, 1800 GSM, 1900 GSM
3G UMTS Band Band 1, Band 5, Band 8 Band 1, Band 2, Band 4, Band 5, Band 6, Band 8, Band 19
3G UMTS Frequency 2100, 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 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 18, Band 19, Band 20, Band 26, Band 28, Band 38, Band 39, Band 40, Band 41
4G LTE Frequency FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, TDD 2600, TDD 2300 FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 850+, FDD 700 APT, TDD 2600, TDD 1900, TDD 2300, TDD 2500
Wireless Interface IEEE 802.11b/g/n IEEE 802.11a/b/g/n/ac
Bluetooth Bluetooth 4.2 Bluetooth 5.0
NFC - Yes OPPO A9 2020 has NFC reader for mobile payments.
Messaging Services SMS, MMS SMS, MMS
MEDIA Samsung Galaxy J4 OPPO A9 2020
Supported Digital Audio Standards WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID -
Supported Digital Video Standards MKV, FLV, AVI, MPEG-4, WMV, ASF, 3GP, M4V, WebM, 3G2 -
Sound Enhancements - Dolby Atmos sound technology, Hi-Res audio
FEATURES Samsung Galaxy J4 OPPO A9 2020
Phone Functions Speakerphone, call timer, conference call, flight mode, 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, gyro sensor, geomagnetic sensor
Security Devices - Face recognition
Additional Phone Features Multitasking, Dual Messenger, Secure Folder function Multitasking, Game Boost 2.0
OTHERS Samsung Galaxy J4 OPPO A9 2020
Included Accessories Power adapter Headphones, power adapter, SIM card removal tool, cover, USB-C cable, screen protector (pre-applied)
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