In depth comparison and review of Samsung Galaxy Z Fold2 5G and Vivo V21 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.
| DESIGN AND DIMENSIONS | Samsung Galaxy Z Fold2 5G | Vivo V21 5G |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | SM-F916B | V2050 | |
| Form Factor | Folder - touch screen, dual screen | Touch | |
| Height | 159.2 mm | 159.68 mm | Vivo V21 5G has greater height than Samsung Galaxy Z Fold2 5G. |
| Width | 68 mm | 73.9 mm | Vivo V21 5G has greater width than Samsung Galaxy Z Fold2 5G. |
| Depth | 16.8 mm | 7.29 mm | Vivo V21 5G is narrower than Samsung Galaxy Z Fold2 5G. |
| Weight | 282 g | 176 g | Vivo V21 5G is lighter than Samsung Galaxy Z Fold2 5G. |
| Dimensions Details | Folded - 68 mm x 16.8 mm x 159.2 mm Unfolded - 128.2 mm x 6.9 mm x 159.2 mm |
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| Body Colour | Thom Browne Gray | Mystic black, metallic blue hinge | Mystic bronze, metallic blue hinge | Mystic black, metallic gold hinge | Mystic bronze, metallic gold hinge | Mystic black, metallic red hinge | Mystic bronze, metallic red hinge | Mystic black, metallic silver hinge | Mystic bronze, metallic silver hinge | Mystic black | Mystic bronze | Dusk blue | Sunset dazzle | |
| Body Material | Gorilla glass 6 | Matte glass | |
| Waterproof (Water-resistant) | - | - | |
| IP rating | - | IP52 | |
| SAR Value | 0.291 W/kg (head, LTE), 0.859 W/kg (head, 5G), 1.453 W/kg (body) | 1.09 W/kg (body), 3.19 W/kg (limb), 0.91 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, Electronic SIM card (e-SIM) | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM | |
| SIM Card Configuration Details | - | Nano SIM + nano SIM/microSD |
| DISPLAY | Samsung Galaxy Z Fold2 5G | Vivo V21 5G |
|---|
| Display Type | OLED display | OLED display | |
|---|---|---|---|
| Display Technology | Infinity Flex Dynamic AMOLED 2X | AMOLED | |
| Foldable Display | Yes | - | |
| Display Design | Inward folding | - | |
| Screen Size (Display Size) | 7.6" | 6.44" | Samsung Galaxy Z Fold2 5G has larger screen size than Vivo V21 5G. |
| Screen Resolution (Display Resolution) | 2208 x 1768 pixels | 2404 x 1080 pixels | Samsung Galaxy Z Fold2 5G has better screen resolution than Vivo V21 5G. |
| Display Format | QXGA+ | Full HD+ | |
| Pixel Density | 373 ppi | - | |
| Aspect Ratio | 22.5:18 | 20:9 | |
| Max Brightness | - | 800 cd/m² | |
| Colour Depth | 16.7 million colours | - | |
| Contrast Ratio | - | 6000000:1 | |
| HDR | Yes | Yes | Both phones have HDR. |
| HDR Technology | HDR10+ | HDR10+ | |
| Display Refresh Rate | 120 Hz | 90 Hz | Samsung Galaxy Z Fold2 5G has better refresh rate than Vivo V21 5G. |
| Display Features | Flex screen | - | |
| Display Protection (Screen Protector) | Samsung Ultra Thin Glass, Corning Gorilla Glass Victus (scratch resistant glass) | - |
| SECOND DISPLAY |
|---|
| Second Display Type | OLED display - colour | - | |
|---|---|---|---|
| Second Display Screen Size | 6.2" | - | |
| Second Display Resolution | 2260 x 816 pixels | - | |
| Second Display Colour Depth | 16.7 million colours | - |
| UNFOLDED DISPLAY |
|---|
| Unfolded Display Screen Size | 7.6 in | - | |
|---|---|---|---|
| Unfolded Display Resolution | 2208 x 1768 pixels | - |
| PROCESSOR | Samsung Galaxy Z Fold2 5G | Vivo V21 5G |
|---|
| Processor Type (CPU) | - | MediaTek Dimensity 800U | |
|---|---|---|---|
| Clock Speed | 3.09 GHz | 2.4 GHz | Samsung Galaxy Z Fold2 5G has higher clock speed than Vivo V21 5G. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| MEMORY | Samsung Galaxy Z Fold2 5G | Vivo V21 5G |
|---|
| RAM | 12 GB | 8 GB | Samsung Galaxy Z Fold2 5G has more RAM than Vivo V21 5G. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 256 GB | 128 GB | Samsung Galaxy Z Fold2 5G has more internal memory than Vivo V21 5G. |
| User Memory | 220.6 GB | - | |
| Memory Interface | UFS 3.1 | UFS 2.2 | |
| Supported Flash Memory Cards (Expandable Memory) | - | microSDHC, microSD, microSDXC - up to 1 TB |
| CAMERA | Samsung Galaxy Z Fold2 5G | Vivo V21 5G |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 3 | 3 | |
|---|---|---|---|
| Sensor Resolution | 12 Megapixel | 64 Megapixel | Vivo V21 5G has better camera resolution than Samsung Galaxy Z Fold2 5G. |
| Lens Type | Ultra wide-angle lens | - | |
| Lens Aperture | F/2.2 | F/1.79 | Vivo V21 5G has better lens aperture than Samsung Galaxy Z Fold2 5G. |
| Field of View (FoV) | 123 degree(s) | - | |
| Pixel Size | 1.12 μm | - | |
| Optical Image Stabiliser (OIS) | Dual OIS (Optical Image Stabilisation) | 4-axis OIS (Optical Image Stabilisation) | Both phones have optical image stabilization. |
| Focus Adjustment | Automatic | Automatic | |
| Optical Zoom | 2x | - | |
| Digital Zoom | 10x | 10x | Both phones have the same digital zoom. |
| Self-Timer Delay | Yes | - | |
| Special Effects | HDR, Grid Line, Motion photos | Bokeh effect | |
| Camera Modes | Panorama, Slow motion mode, Pro mode, selfie mode, HYPERLAPSE, Live Focus mode, 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, Clothes, Night view, Live focus video, Night, Mountain, Single Take, Pro Video, NIGHT HYPERLAPSE | Beauty mode, Night, Filter mode, Portrait video, Dual video mode, ultra stable video, kid's face beauty, double exposure | |
| Face Recognition (Face ID) | Face detection | - | Samsung Galaxy Z Fold2 5G has face detection. |
| Light Source | High CRI LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) 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 | 3840 x 2160 (4K), 1920 x 1080 (1080p) at 120 fps, 1280 x 720 (720p) at 120 fps | |
| Camera Features (Functions) | Quick Launch, Playback zoom, blink detection, VDIS (Video Digital Image Stabilisation), Tracking AF, Video location tags, location tags, Hyperlapse video support 1080p, Scene Optimiser, Lens smudge, Full view, Flaw detection, Shot suggestions, blur detection, HDR10+ recording, Floating shutter button, Super steady, Zoom-In Mic, AR Doodle, Microphone Control, HEVC (High Efficiency Video coding), Dual preview, Auto framing, Flex mode, Capture View mode | Eye Autofocus |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 12 Megapixel | 8 Megapixel | Samsung Galaxy Z Fold2 5G has better second camera resolution than Vivo V21 5G. |
|---|---|---|---|
| Lens Type (2nd Camera) | Wide-angle lens | Wide-angle lens | |
| Lens Aperture (2nd Camera) | F/1.8 | F/2.2 | Samsung Galaxy Z Fold2 5G has better second camera lens aperture than Samsung Galaxy Z Fold2 5G. |
| Field of View (2nd Camera) | 83 degree(s) | 120 degree(s) | Vivo V21 5G has larger second camera lens field of view than Samsung Galaxy Z Fold2 5G. |
| Pixel Size (2nd Camera) | 1.8 μm | - | |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | - | Samsung Galaxy Z Fold2 5G has optical stabilisation of the second camera. |
| Camera Features (2nd Camera) | Super Speed Dual Pixel AF | - |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 12 Megapixel | 2 Megapixel | Samsung Galaxy Z Fold2 5G has higher resolution third camera than Vivo V21 5G. |
|---|---|---|---|
| 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) | 45 degree(s) | - | |
| Pixel Size (3rd Camera) | 1 μm | - | |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | - | Samsung Galaxy Z Fold2 5G has optical stabilisation of the third camera. |
| Camera Functions (3rd Camera) | - | Super macro camera | |
| Camera Features (3rd Camera) | Phase Detect Auto-Focus (PDAF) | 4cm macro photography |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 2 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 10 Megapixel | 44 Megapixels | Vivo V21 5G has better front camera resolution than Samsung Galaxy Z Fold2 5G. |
| Lens Aperture (Front) | F/2.2 | F/2.0 | Vivo V21 5G has better front lens aperture than Samsung Galaxy Z Fold2 5G. |
| Field of View (Front) | 80 degree(s) | - | |
| Pixel Size (Front) | 1.22 μm | - | |
| Special Effects (Front) | HDR, Grid Line | HDR | |
| Camera Modes (Front) | - | Beauty mode, Night, Filter mode, Dual video mode, ultra stable video, kid's face beauty, double exposure, AI night portrait | |
| Light Source (Front) | - | Dual LED flash | |
| Video Resolutions (Front) | - | 3840 x 2160 (4K) | |
| Camera Features (Front) | - | Optical Image Stabilisation (OIS), 2 x digital zoom, Eye Autofocus |
| SECOND FRONT CAMERA |
|---|
| Sensor Resolution (2nd Front) | 10 Megapixel | - | |
|---|---|---|---|
| Lens Aperture (2nd Front) | F/2.2 | - | |
| Field of View (2nd Front) | 80 degree(s) | - | |
| Pixel Size (2nd Front) | 1.22 μm | - |
| BATTERY AND CHARGING | Samsung Galaxy Z Fold2 5G | Vivo V21 5G |
|---|
| Battery Capacity (Battery Size) | 4500 mAh | 4000 mAh | Samsung Galaxy Z Fold2 5G has larger battery capacity than Vivo V21 5G. |
|---|---|---|---|
| Fast Charging Technology | Qualcomm Quick Charge 2.0, Samsung Super Fast Charging | - | Samsung Galaxy Z Fold2 5G has fast charging technology. |
| Wireless Charging | Yes | - | Samsung Galaxy Z Fold2 5G can be charged wirelessly. |
| Wireless Charging Standards | WPC, PMA, Qi, Fast Wireless Charging, Wireless PowerShare | - | |
| Talk Time | 1860 minutes | - | |
| Run Time Details | Active online usage (LTE): up to 11 hrs Active online usage (Wi-Fi): up to 11 hrs Playback (wireless video): up to 18 hrs Playback (wireless audio): up to 83 hrs Talk (4G): up to 1860 min |
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| CELLULAR | Samsung Galaxy Z Fold2 5G | Vivo V21 5G |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 5G | 5G | Both phones have the same mobile network generation. |
| Operating System | Android 10 | Funtouch OS 11.1 (based on Android 11) | |
| Intelligent Assistant | Bixby | - | |
| Payment Technology | Samsung Pay | - | |
| Navigation | GPS, GLONASS, BeiDou, Galileo | GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Samsung Galaxy Z Fold2 5G | Vivo V21 5G |
|---|
| Data Transmission | FDD-LTE, TDD-LTE, LAA, 5G NR FR1 | 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 4, Band 5, Band 8 | Band 1, Band 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 900 | 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 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 17, Band 18, Band 19, Band 20, 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, 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 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, 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, n28, n41, n77, n78, n40 | N1, n3, n7, n8, n28, n41, n78, n40 | |
| 5G NR Frequency | FDD 2100, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 700APT, TDD TD 2500, TDD TD 3700, TDD TD 3500, TDD 2300 | FDD 2100, FDD 1800, FDD 2600, FDD 900, FDD 700APT, TDD TD 2500, TDD TD 3500, TDD 2300 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac, IEEE 802.11a/b/g/n/ac/ax | Wi-Fi | |
| Bluetooth | Bluetooth 5.0 LE | Bluetooth 5.1 | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Ultra-Wideband (UWB) | Yes | - | Samsung Galaxy Z Fold2 5G has UWB wireless technology. |
| Messaging Services | SMS, MMS | - |
| MEDIA | Samsung Galaxy Z Fold2 5G | Vivo V21 5G |
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| 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 | WAV, MPEG 2 Audio, MP3, FLAC, MIDI, APE (Monkey's Audio), Vorbis | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4 | MKV, FLV, 3GP, MP4 | |
| Sound Enhancements | Dolby Digital Plus sound, Dolby Atmos sound technology, Surround sound, stereo speakers tuned by AKG, Dolby Digital sound | - |
| FEATURES | Samsung Galaxy Z Fold2 5G | Vivo V21 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, barometer, gyro sensor, hall sensor, geomagnetic sensor, light sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyroscope | |
| Security Devices | Face recognition, fingerprint reader (side) | Fingerprint reader (under display) | |
| Additional Phone Features | Multitasking, MU-MIMO technology, Fast Charging, Samsung KNOX, High AOP Mic, Smart View, Samsung DeX support, Bixby Vision, Secure Folder function, Dual Audio, Bixby Routines, Intelligent Performance Enhancer, dual battery, Flex mode, Multi Active Window, Bluetooth Scalable Codec, Hinge CAM technology, App Pair, Split Screen Capture | Fast Charging, 3 GB of external memory space for RAM |
| OTHERS | Samsung Galaxy Z Fold2 5G | Vivo V21 5G |
|---|
| Included Accessories | Power adapter, SIM card removal tool, USB-C cable, protective case, Samsung Galaxy Buds Live | Headset, headset adapter, SIM card removal tool, pre-installed screen protection film, USB-C cable, protective case | |
|---|---|---|---|
| Compliant Standards | VDE, SGS Eye Care Display Certification | IP52 |
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