In depth comparison and review of OPPO A9 2020 and Samsung Galaxy Z Fold4. 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 A9 2020 | Samsung Galaxy Z Fold4 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | CPH1941 | SM-F936B/DS | |
| Form Factor | Touch | Folder - touch screen, dual screen | |
| Height | 163.6 mm | 155.1 mm | OPPO A9 2020 has greater height than Samsung Galaxy Z Fold4. |
| Width | 75.6 mm | 67.1 mm | OPPO A9 2020 has greater width than Samsung Galaxy Z Fold4. |
| Depth | 9.1 mm | 15.8 mm | OPPO A9 2020 is narrower than OPPO A9 2020. |
| Weight | 195 g | 263 g | OPPO A9 2020 is lighter than OPPO A9 2020. |
| Dimensions Details | - | Folded - 67.1 mm x 15.8 mm x 155.1 mm Unfolded - 130.1 mm x 6.3 mm x 155.1 mm |
|
| Body Colour | Marine green | Space purple | Burgundy | Greygreen | Beige | Phantom black | |
| Body Material | 3D glass | Corning Gorilla Glass Victus, Armour Aluminium frame | |
| Protection | - | Water-resistant | |
| Waterproof (Water-resistant) | - | Yes | Samsung Galaxy Z Fold4 is waterproof. |
| IP rating | - | IPX8 | |
| SAR Value | 0.976 W/kg (body), 0.847 W/kg (head), 2.118 W/kg (limb) | 2.83 W/kg (limb), 1.506 W/kg (body), 1.301 W/kg (head) | |
| Connector Type | USB Type-C - 24 pin USB-C Handset jack - mini-phone 3.5mm |
USB Type-C - 24 pin USB-C | |
| SIM Card Type (Size) | Nano SIM | Nano SIM, Electronic SIM card (e-SIM) | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | OPPO A9 2020 | Samsung Galaxy Z Fold4 |
|---|
| Display Type | LCD display | OLED display | |
|---|---|---|---|
| Display Technology | TFT | Dynamic AMOLED 2X | |
| Foldable Display | - | Yes | |
| Display Design | - | Inward folding | |
| Screen Size (Display Size) | 6.5" | 7.6" | Samsung Galaxy Z Fold4 has larger screen size than OPPO A9 2020. |
| Screen Resolution (Display Resolution) | 1600 x 720 pixels | 2176 x 1812 pixels | Samsung Galaxy Z Fold4 has better screen resolution than OPPO A9 2020. |
| Display Format | - | QXGA+ | |
| Pixel Density | 269 ppi | 374 ppi | Samsung Galaxy Z Fold4 has better pixel density than OPPO A9 2020. |
| Aspect Ratio | - | 21.6:18 | |
| 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 | - | |
| HDR | - | Yes | Samsung Galaxy Z Fold4 has HDR. |
| HDR Technology | - | HDR10+ | |
| Display Enhancement Technology | Blue light filter | - | |
| Display Refresh Rate | - | 120 Hz | |
| Display Features | In-Cell Display Technology, Sunlight screen | AOD(Always On Display), Edge Lighting, Video Wallpaper | |
| Display Protection (Screen Protector) | - | Samsung Ultra Thin Glass |
| SECOND DISPLAY |
|---|
| Second Display Type | - | OLED display - colour | |
|---|---|---|---|
| Second Display Screen Size | - | 6.2" | |
| Second Display Resolution | - | 2316 x 904 pixels | |
| Second Display Colour Depth | - | 16.7 million colours |
| UNFOLDED DISPLAY |
|---|
| Unfolded Display Screen Size | - | 7.6 in | |
|---|---|---|---|
| Unfolded Display Resolution | - | 2176 x 1812 pixels |
| PROCESSOR | OPPO A9 2020 | Samsung Galaxy Z Fold4 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 665 | Qualcomm Snapdragon 8+ Gen 1 | |
|---|---|---|---|
| Processor Number | - | SM8475 | |
| Clock Speed | - | 3.18 GHz | |
| Processor Core Qty | - | 8-core | |
| Graphics System (GPU) | Qualcomm ADRENO 610 | - |
| MEMORY | OPPO A9 2020 | Samsung Galaxy Z Fold4 |
|---|
| RAM | LPDDR4X SDRAM - 4 GB | 12 GB | Samsung Galaxy Z Fold4 has more RAM than OPPO A9 2020. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 256 GB | Samsung Galaxy Z Fold4 has more internal memory than OPPO A9 2020. |
| User Memory | - | 216.3 GB | |
| Memory Interface | UFS 2.1 | UFS 3.1 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 256 GB | - |
| CAMERA | OPPO A9 2020 | Samsung Galaxy Z Fold4 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 4 | 3 | |
|---|---|---|---|
| Sensor Resolution | 48 Megapixel | 50 Megapixel | Samsung Galaxy Z Fold4 has better camera resolution than OPPO A9 2020. |
| Sensor Size | 1/2.25" | - | |
| Sensor Type | CMOS | - | |
| Lens Type | - | Wide-angle lens | |
| Lens Aperture | F/1.8 | F/1.8 | Both phones have the same camera lens aperture. |
| Field of View (FoV) | - | 85 degree(s) | |
| Pixel Size | 0.8 μm | 1 μm | Samsung Galaxy Z Fold4 has larger camera pixel size than OPPO A9 2020. |
| Optical Image Stabiliser (OIS) | - | Dual OIS (Optical Image Stabilisation) | Samsung Galaxy Z Fold4 has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Optical Zoom | - | 3x | |
| Digital Zoom | - | 12x | |
| Self-Timer Delay | - | Yes | |
| Special Effects | - | Face retouch, Grid Line, selfie colour tone | |
| HDR Mode | - | Super HDR | |
| Camera Modes | Panorama, Time-lapse mode, Slow motion mode, Beauty mode, Expert Mode, Portrait, Night, Ultra Night Mode 2.0 | Panorama, Slow motion mode, Pro mode, HYPERLAPSE, Super Slow-mo, Flowers, Greenery, Trees, Sky, Beaches, Watersides, Snow, Backlit, Text, Food, Face, Baby, Person, Dog, Cat, People, Sunset, Sunrise, City, Waterfall, Scenery, Stage, Vehicles, Drinks, Animal, Shoes, Indoor, Night view, Portrait, Night, Mountain, Filter mode, Single Take, Pro Video, Portrait video, Director's View, Capture View | |
| Face Recognition (Face ID) | - | Face detection | Samsung Galaxy Z Fold4 has face detection. |
| Light Source | LED flash | High CRI LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, 3840 x 2160 (4K) at 30 fps | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, 3840 x 2160 (4K) at 30 fps, 3840 x 2160 (4K) at 60 fps, Super slow motion video 1280 x 720 (720p) at 960 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps, Hyperlapse 4K video support at 30 fps, Super Steady 1080p video support at 30 fps, 7680 x 4320 (8K UHD) at 24 fps | |
| Camera Features (Functions) | Electronic Image Stabiliser (EIS) | Playback zoom, Motion photo, QR-code scanner, RAW image capture, VDIS (Video Digital Image Stabilisation), Tracking AF, Video location tags, AR sticker, Scene Optimiser, Flaw detection, AI Super Resolution, Shot suggestions, AR Emoji, HDR10+ recording, Super steady, Zoom-In Mic, HEIF image capture, AR Doodle, Microphone Control, HEVC (High Efficiency Video coding), Dual preview, Auto framing, Capture View mode, Corning Gorilla Glass DX (protective lens glass), Auto FPS, AR Emoji Studio, Deco PIC, 30x Space Zoom, iDCG (Intra-scene Dual Conversion Gain), Super Night Solution |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 8 Megapixel | 12 Megapixel | Samsung Galaxy Z Fold4 has better second camera resolution than OPPO A9 2020. |
|---|---|---|---|
| Sensor Size (2nd Camera) | 1/4.0" | - | |
| Lens Type (2nd Camera) | Ultra wide-angle lens | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | F/2.25 | F/2.2 | Samsung Galaxy Z Fold4 has better second camera lens aperture than OPPO A9 2020. |
| Field of View (2nd Camera) | 119 degree(s) | 123 degree(s) | Samsung Galaxy Z Fold4 has larger second camera lens field of view than OPPO A9 2020. |
| Pixel Size (2nd Camera) | 1.12 μm | 1.12 μm | Both phones have the same second camera pixel size. |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 2 Megapixel | 10 Megapixel | Samsung Galaxy Z Fold4 has higher resolution third camera than OPPO A9 2020. |
|---|---|---|---|
| Sensor Size (3rd Camera) | 1/5" | - | |
| Lens Type (3rd Camera) | - | Telephoto lens | |
| Lens Aperture (3rd Camera) | F/2.4 | F/2.4 | Both phones have the same lens aperture of the third camera. |
| Field of View (3rd Camera) | - | 36 degree(s) | |
| Pixel Size (3rd Camera) | 1.75 μm | 1 μm | OPPO A9 2020 has larger third camera pixel size than Samsung Galaxy Z Fold4. |
| 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 | 2 | |
|---|---|---|---|
| Sensor Resolution (Front) | 16 Megapixel | 10 Megapixel | OPPO A9 2020 has better front camera resolution than Samsung Galaxy Z Fold4. |
| Sensor Size (Front) | 1/3.1" | - | |
| Lens Aperture (Front) | F/2.0 | F/2.2 | OPPO A9 2020 has better front lens aperture than OPPO A9 2020. |
| Field of View (Front) | - | 85 degree(s) | |
| Pixel Size (Front) | 1 μm | 1.22 μm | Samsung Galaxy Z Fold4 has larger front camera pixel size than OPPO A9 2020. |
| Camera Modes (Front) | AI Beauty | - | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | - |
| SECOND FRONT CAMERA |
|---|
| Sensor Resolution (2nd Front) | - | 4 Megapixel | |
|---|---|---|---|
| Lens Aperture (2nd Front) | - | F/1.8 | |
| Field of View (2nd Front) | - | 80 degree(s) | |
| Pixel Size (2nd Front) | - | 2 μm | |
| Camera Features (2nd Front) | - | Under display camera |
| BATTERY AND CHARGING | OPPO A9 2020 | Samsung Galaxy Z Fold4 |
|---|
| Battery Capacity (Battery Size) | 5000 mAh | 4400 mAh | OPPO A9 2020 has larger battery capacity than Samsung Galaxy Z Fold4. |
|---|---|---|---|
| Fast Charging Technology | - | Qualcomm Quick Charge 2.0, Adaptive Fast Charging | Samsung Galaxy Z Fold4 has fast charging technology. |
| Wireless Charging | - | Yes | Samsung Galaxy Z Fold4 can be charged wirelessly. |
| Wireless Charging Standards | - | WPC, Qi, Fast Wireless Charging 2.0, Wireless PowerShare | |
| Standby Time | 450 hours | - | |
| Talk Time | 2700 minutes | 2340 minutes | OPPO A9 2020 has longer battery life when making calls than Samsung Galaxy Z Fold4. |
| Run Time Details | Standby: up to 450 hrs Talk: up to 2700 min |
Active online usage (LTE): up to 16 hrs Active online usage (Wi-Fi): up to 16 hrs Playback (wireless video): up to 20 hrs Playback (wireless audio): up to 72 hrs Talk (4G): up to 2340 min |
| CELLULAR | OPPO A9 2020 | Samsung Galaxy Z Fold4 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 5G | Samsung Galaxy Z Fold4 has more advanced generation mobile network. |
| Operating System | ColorOS 6.0.1 (based on Android 9) | Android 12L | |
| User Interface | - | One UI 4.1.1 | |
| Intelligent Assistant | - | Bixby | |
| Payment Technology | - | Samsung Pay | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou, Galileo | GPS, GLONASS, BeiDou, Galileo, QZSS |
| COMMUNICATIONS | OPPO A9 2020 | Samsung Galaxy Z Fold4 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | FDD-LTE, TDD-LTE, LAA, 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 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 18, Band 19, Band 20, Band 26, Band 28, Band 38, Band 39, Band 40, Band 41 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 17, Band 18, Band 19, Band 20, Band 25, Band 26, Band 28, Band 32, 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 lower, FDD 800 upper, FDD 800 DD, FDD 850+, FDD 700 APT, TDD 2600, TDD 1900, TDD 2300, TDD 2500 | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700c, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 1900+, FDD 850+, FDD 700 APT, FDD 1500 L, TDD 2600, TDD 1900, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | |
| 5G NR Band | - | N1, n2, n3, n5, n7, n8, n20, n28, n38, n41, n66, n75, n77, n78, n40, n25, n12 | |
| 5G NR Frequency | - | FDD 2100, FDD 1900PCS, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 2500, FDD AWS-3, SDL DL 1500+, TDD TD 3700, TDD TD 3500, TDD 2300, FDD 1900, n12 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac/ax, Wi-Fi 6E | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.2 | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Ultra-Wideband (UWB) | - | Yes | Samsung Galaxy Z Fold4 has UWB wireless technology. |
| Modem | - | Snapdragon X65 5G | |
| Messaging Services | SMS, MMS | - |
| MEDIA | OPPO A9 2020 | Samsung Galaxy Z Fold4 |
|---|
| Supported Digital Audio Standards | - | WAV, WMA, AAC, PCM, AMR, MP3, FLAC, XMF, OGG, MIDI, APE (Monkey's Audio), M4A, DSF, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, DFF, MID, DSD64, DSD128 | |
|---|---|---|---|
| Supported Digital Video Standards | - | MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4 | |
| Sound Enhancements | Dolby Atmos sound technology, Hi-Res audio | Dolby Digital Plus sound, Dolby Atmos sound technology, Surround sound, Dolby Digital sound |
| FEATURES | OPPO A9 2020 | Samsung Galaxy Z Fold4 |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | - | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, gyro sensor, geomagnetic sensor | Accelerometer, proximity sensor, barometer, gyro sensor, hall sensor, geomagnetic sensor, light sensor | |
| Security Devices | Face recognition | Face recognition, fingerprint reader (side) | |
| Additional Phone Features | Multitasking, Game Boost 2.0 | Multitasking, Air View, MIMO technology, Screen Write, Smart Select, Samsung KNOX, High AOP Mic, Smart View, Live message, Screen off memo, Samsung DeX support, Bixby Vision, Secure Folder function, TalkBack, Dual Audio, Bixby Routines, Intelligent Performance Enhancer, Samsung Smart Switch, dual battery, AR Doodle, PENUP, Flex mode, Multi Active Window, S Pen support, Multi View, Samsung Seamless Codec |
| OTHERS | OPPO A9 2020 | Samsung Galaxy Z Fold4 |
|---|
| Included Accessories | Headphones, power adapter, SIM card removal tool, cover, USB-C cable, screen protector (pre-applied) | SIM card removal tool, USB-C cable | |
|---|---|---|---|
| Compliant Standards | - | VDE, IPX8, IEC 61960 | |
| Max Depth of Water Resistance | - | 1.5 m |
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