In depth comparison and review of OnePlus 9 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 | OnePlus 9 | Samsung Galaxy Z Fold4 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | SM-F936B/DS | |
| Form Factor | Touch | Folder - touch screen, dual screen | |
| Height | 160 mm | 155.1 mm | OnePlus 9 has greater height than Samsung Galaxy Z Fold4. |
| Width | 74.2 mm | 67.1 mm | OnePlus 9 has greater width than Samsung Galaxy Z Fold4. |
| Depth | 8.7 mm | 15.8 mm | OnePlus 9 is narrower than OnePlus 9. |
| Weight | 192 g | 263 g | OnePlus 9 is lighter than OnePlus 9. |
| 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 | Astral black | Arctic sky | Burgundy | Greygreen | Beige | Phantom black | |
| Body Material | - | 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 | - | 2.83 W/kg (limb), 1.506 W/kg (body), 1.301 W/kg (head) | |
| Connector Type | USB Type-C - 24 pin USB-C | 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 | OnePlus 9 | Samsung Galaxy Z Fold4 |
|---|
| Display Type | OLED display | OLED display | |
|---|---|---|---|
| Display Technology | Fluid Amoled | Dynamic AMOLED 2X | |
| Foldable Display | - | Yes | |
| Display Design | - | Inward folding | |
| Screen Size (Display Size) | 6.55" | 7.6" | Samsung Galaxy Z Fold4 has larger screen size than OnePlus 9. |
| Screen Resolution (Display Resolution) | 2400 x 1080 pixels | 2176 x 1812 pixels | Samsung Galaxy Z Fold4 has better screen resolution than OnePlus 9. |
| Display Format | Full HD+ | QXGA+ | |
| Pixel Density | 402 ppi | 374 ppi | OnePlus 9 has better pixel density than Samsung Galaxy Z Fold4. |
| Aspect Ratio | 20:9 | 21.6:18 | |
| Max Brightness | 1100 cd/m² | - | |
| Colour Depth | 16.7 million colours | 16.7 million colours | Both phones have the same color depth. |
| HDR | Yes | Yes | Both phones have HDR. |
| HDR Technology | HDR10+ | HDR10+ | |
| Display Enhancement Technology | Vibrant Color Effect | - | |
| Display Refresh Rate | 120 Hz | 120 Hz | Both phones have the same refresh rate. |
| Display Features | Always-on display, Reading mode, night mode, Wide colour display (P3), sRGB support | AOD(Always On Display), Edge Lighting, Video Wallpaper | |
| Display Protection (Screen Protector) | Corning Gorilla Glass (scratch resistant glass) | 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 | OnePlus 9 | Samsung Galaxy Z Fold4 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 888 | Qualcomm Snapdragon 8+ Gen 1 | |
|---|---|---|---|
| Processor Number | - | SM8475 | |
| Clock Speed | - | 3.18 GHz | |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| Graphics System (GPU) | Qualcomm ADRENO 660 | - |
| MEMORY | OnePlus 9 | Samsung Galaxy Z Fold4 |
|---|
| RAM | LPDDR5 SDRAM - 8 GB | 12 GB | Samsung Galaxy Z Fold4 has more RAM than OnePlus 9. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 256 GB | Samsung Galaxy Z Fold4 has more internal memory than OnePlus 9. |
| User Memory | - | 216.3 GB | |
| Memory Interface | UFS 3.1 | UFS 3.1 |
| CAMERA | OnePlus 9 | Samsung Galaxy Z Fold4 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 3 | 3 | |
|---|---|---|---|
| Sensor Resolution | 48 Megapixel | 50 Megapixel | Samsung Galaxy Z Fold4 has better camera resolution than OnePlus 9. |
| Sensor Size | 1/1.43" | - | |
| Sensor Name | Sony Exmor RS IMX689 sensor | - | |
| Lens Type | - | Wide-angle lens | |
| Lens Aperture | F/1.8 | F/1.8 | Both phones have the same camera lens aperture. |
| Lens Construction | 7-element | - | |
| Field of View (FoV) | - | 85 degree(s) | |
| Pixel Size | 1.12 μm | 1 μm | OnePlus 9 has larger camera pixel size than Samsung Galaxy Z Fold4. |
| Optical Image Stabiliser (OIS) | - | Dual OIS (Optical Image Stabilisation) | Samsung Galaxy Z Fold4 has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Laser Auto Focus | Yes | - | |
| Minimum Focal Length (Focal Distance) | 23 mm | - | |
| Optical Zoom | - | 3x | |
| Digital Zoom | - | 12x | |
| Self-Timer Delay | - | Yes | |
| Special Effects | HDR | Face retouch, Grid Line, selfie colour tone | |
| HDR Mode | - | Super HDR | |
| Camera Modes | Panorama, Time-lapse mode, Pro mode, HYPERLAPSE, Nightscape capture mode, Portrait, Filter mode, Super Macro, Portrait video, UltraShot HDR, Smart Scene Recognition, Tilt-shift mode, Focus Peaking, Cat/Dog Face Focus, Super Stable, Video Nightscape | 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 | Dual LED flash | High CRI LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 3840 x 2160 (4K) at 30 fps, 3840 x 2160 (4K) at 60 fps, Super slow motion video 1920 x 1080 (1080p) at 240 fps, Super slow motion video 1280 x 720 (720p) at 480 fps, 7680 x 4320 (8K) at 30fps | 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) | Tracking Focus, Phase Detect Auto-Focus (PDAF), Continuous Auto Focus (CAF), RAW image capture, Dual Native ISO, 2x2 On-Chip Lens (OCL), Hasselblad Camera, Natural Color Calibration, 12-bit RAW | 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) | 50 Megapixel | 12 Megapixel | OnePlus 9 has better second camera resolution than Samsung Galaxy Z Fold4. |
|---|---|---|---|
| Sensor Size (2nd Camera) | 1/1.56" | - | |
| Sensor Name (2nd Camera) | Sony Exmor RS IMX766 sensor | - | |
| 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) | 7-element | - | |
| Field of View (2nd Camera) | 119 degree(s) | 123 degree(s) | Samsung Galaxy Z Fold4 has larger second camera lens field of view than OnePlus 9. |
| Pixel Size (2nd Camera) | - | 1.12 μm | |
| Minimum Focal Length (2nd Camera) | 14 mm | - | |
| Camera Features (2nd Camera) | 2x2 On-Chip Lens (OCL), Freeform Lens | - |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 2 Megapixel | 10 Megapixel | Samsung Galaxy Z Fold4 has higher resolution third camera than OnePlus 9. |
|---|---|---|---|
| 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. |
| Lens Element Qty (3rd Camera) | 3-element | - | |
| Field of View (3rd Camera) | - | 36 degree(s) | |
| Pixel Size (3rd Camera) | - | 1 μm | |
| Camera Functions (3rd Camera) | Monochrome | - |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 2 | |
|---|---|---|---|
| Sensor Resolution (Front) | 16 Megapixel | 10 Megapixel | OnePlus 9 has better front camera resolution than Samsung Galaxy Z Fold4. |
| Sensor Name (Front) | Sony Exmor RX IMX471 sensor | - | |
| Lens Aperture (Front) | F/2.4 | F/2.2 | Samsung Galaxy Z Fold4 has better front lens aperture than OnePlus 9. |
| 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 OnePlus 9. |
| Focus Adjustment | Focus free | - | |
| Special Effects (Front) | HDR, face retouch | - | |
| Camera Modes (Front) | Time-lapse mode | - | |
| Light Source (Front) | Display flash | - | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) at 30 fps | - | |
| Camera Features (Front) | Electronic Image Stabiliser (EIS) | - |
| 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 | OnePlus 9 | Samsung Galaxy Z Fold4 |
|---|
| Battery Capacity (Battery Size) | 4500 mAh | 4400 mAh | OnePlus 9 has larger battery capacity than Samsung Galaxy Z Fold4. |
|---|---|---|---|
| Fast Charging Technology | Qualcomm Quick Charge, Warp Charge 65T technology | Qualcomm Quick Charge 2.0, Adaptive Fast Charging | Both phones have fast charging technology. |
| Recharge Time (Charging Time) | 29 min | - | |
| Wireless Charging | Yes | Yes | Both phones can be charged wirelessly. |
| Wireless Charging Standards | Qi | WPC, Qi, Fast Wireless Charging 2.0, Wireless PowerShare | |
| Talk Time | - | 2340 minutes | |
| Run Time Details | - | 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 | OnePlus 9 | Samsung Galaxy Z Fold4 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 5G | 5G | Both phones have the same mobile network generation. |
| Operating System | OxygenOS (based on Android 11) | 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 | OnePlus 9 | Samsung Galaxy Z Fold4 |
|---|
| Data Transmission | FDD-LTE, TDD-LTE, 5G NR FR1 | 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 8, Band 9, Band 19 | Band 1, Band 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 900, 1700, 800 | 2100, 1900, 1700, 850, 900 | |
| 4G LTE Band | 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 | 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 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 | 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, n3, n5, n7, n8, n20, n28, n38, n41, n66, n78, n40 | N1, n2, n3, n5, n7, n8, n20, n28, n38, n41, n66, n75, n77, n78, n40, n25, n12 | |
| 5G NR Frequency | FDD 2100, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 2500, FDD AWS-3, TDD TD 3500, TDD 2300 | 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/ax | IEEE 802.11a/b/g/n/ac/ax, Wi-Fi 6E | |
| Bluetooth | Bluetooth 5.2 | 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 X55 5G | Snapdragon X65 5G |
| MEDIA | OnePlus 9 | Samsung Galaxy Z Fold4 |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, MP3, FLAC, AC-3, AAC +, OGG, APE (Monkey's Audio), M4A, LDAC, IMY, EAC3, MID, AMR-WB, AMR-NB, EAC3-JOC, AC-4 | 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, MOV, WMV, 3GP, TS, WebM, H.265 HEVC, MP4 | MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4 | |
| Sound Enhancements | Qualcomm aptX audio, Qualcomm aptX HD audio, Dolby Atmos Surround Sound | Dolby Digital Plus sound, Dolby Atmos sound technology, Surround sound, Dolby Digital sound |
| FEATURES | OnePlus 9 | 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, digital compass, gyro sensor, flicker sensor, sensor core | Accelerometer, proximity sensor, barometer, gyro sensor, hall sensor, geomagnetic sensor, light sensor | |
| Security Devices | Fingerprint reader (under display), face recognition | Face recognition, fingerprint reader (side) | |
| Additional Phone Features | Noise Cancellation Technology, MIMO technology, Gesture Controls, OnePlus Switch, Alert Slider, dual stereo speakers, Zen mode 2.0, OnePlus Games | 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 | OnePlus 9 | Samsung Galaxy Z Fold4 |
|---|
| Included Accessories | SIM card removal tool, sticker, screen protector, USB-C to USB-C cable, protective case, Warp Charge 65 power adapter | SIM card removal tool, USB-C cable | |
|---|---|---|---|
| Compliant Standards | SGS | VDE, IPX8, IEC 61960 | |
| Max Depth of Water Resistance | - | 1.5 m |
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