Samsung Galaxy Z Fold2 5G vs. Vivo X51 5G

Phone Comparison, Reviews and Tests

In depth comparison and review of Samsung Galaxy Z Fold2 5G and Vivo X51 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.

Phone Specifications Comparison

Samsung Galaxy Z Fold2 5G vs. Vivo X51 5G Comparison Chart
DESIGN AND DIMENSIONS Samsung Galaxy Z Fold2 5G Vivo X51 5G
Product Type Smartphone Smartphone
Manufacturer Model Number SM-F916B V2006
Form Factor Folder - touch screen, dual screen Touch
Height 159.2 mm 158.46 mm Samsung Galaxy Z Fold2 5G has greater height than Vivo X51 5G.
Width 68 mm 72.8 mm Vivo X51 5G has greater width than Samsung Galaxy Z Fold2 5G.
Depth 16.8 mm 8.04 mm Vivo X51 5G is narrower than Samsung Galaxy Z Fold2 5G.
Weight 282 g 181.5 g Vivo X51 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 Alpha grey
Body Material Gorilla glass 6 -
Waterproof (Water-resistant) - -
IP rating - IP53
SAR Value 0.291 W/kg (head, LTE), 0.859 W/kg (head, 5G), 1.453 W/kg (body) 1.205 W/kg (head), 1.239 W/kg (body), 3.086 W/kg (limb)
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
DISPLAY Samsung Galaxy Z Fold2 5G Vivo X51 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" 6.56" Samsung Galaxy Z Fold2 5G has larger screen size than Vivo X51 5G.
Screen Resolution (Display Resolution) 2208 x 1768 pixels 2376 x 1080 pixels Samsung Galaxy Z Fold2 5G has better screen resolution than Vivo X51 5G.
Display Format QXGA+ -
Pixel Density 373 ppi 398 ppi Vivo X51 5G has better pixel density than Samsung Galaxy Z Fold2 5G.
Aspect Ratio 22.5:18 19.8:9
Max Brightness - 500 cd/m²
Colour Depth 16.7 million colours 16.7 million colours Both phones have the same color depth.
HDR Yes - Samsung Galaxy Z Fold2 5G has HDR.
HDR Technology HDR10+ -
Display Refresh Rate 120 Hz -
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 X51 5G
Processor Type (CPU) - Qualcomm Snapdragon 765G
Clock Speed 3.09 GHz 2.4 GHz Samsung Galaxy Z Fold2 5G has higher clock speed than Vivo X51 5G.
Processor Core Qty 8-core 8-core Both phones have the same number of phone cores.
MEMORY Samsung Galaxy Z Fold2 5G Vivo X51 5G
RAM 12 GB 8 GB Samsung Galaxy Z Fold2 5G has more RAM than Vivo X51 5G.
Internal Memory Size (Storage Capacity) 256 GB 256 GB Both phones have the same internal memory capacity.
User Memory 220.6 GB -
Memory Interface UFS 3.1 -
CAMERA Samsung Galaxy Z Fold2 5G Vivo X51 5G
MAIN CAMERA
Number of Main Cameras 3 4
Sensor Resolution 12 Megapixel 48 Megapixel Vivo X51 5G has better camera resolution than Samsung Galaxy Z Fold2 5G.
Lens Type Ultra wide-angle lens -
Lens Aperture F/2.2 F/1.6 Vivo X51 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) - Samsung Galaxy Z Fold2 5G has optical stabilisation.
Focus Adjustment Automatic Automatic
Laser Auto Focus - Yes
Optical Zoom 2x -
Digital Zoom 10x -
Self-Timer Delay Yes -
Special Effects HDR, Grid Line, Motion photos HDR
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 Panorama, Time-lapse mode, Pro mode, Live Photos, AI makeup, Portrait, Super Night mode, astro mode, pro sports mode, DOC mode
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 -
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 60x Hyper Zoom, Gimbal Super Night Master, Gimbal Super Sport Expert
SECOND CAMERA
Sensor Resolution (2nd Camera) 12 Megapixel 13 Megapixel Vivo X51 5G has better second camera resolution than Samsung Galaxy Z Fold2 5G.
Lens Type (2nd Camera) Wide-angle lens -
Lens Aperture (2nd Camera) F/1.8 F/2.46 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) -
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 8 Megapixel Samsung Galaxy Z Fold2 5G has higher resolution third camera than Vivo X51 5G.
Lens Type (3rd Camera) Telephoto lens Wide-angle lens
Lens Aperture (3rd Camera) F/2.4 F/2.2 Vivo X51 5G has better third camera lens aperture than Samsung Galaxy Z Fold2 5G.
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 Features (3rd Camera) Phase Detect Auto-Focus (PDAF) -
FOURTH CAMERA
Sensor Resolution (4th Camera) - 8 Megapixel
Lens Type (4th Camera) - Telephoto lens
Lens Aperture (4th Camera) - F/3.4
FRONT CAMERA
Number of Front Cameras 2 1
Sensor Resolution (Front) 10 Megapixel 32 Megapixel Vivo X51 5G has better front camera resolution than Samsung Galaxy Z Fold2 5G.
Lens Aperture (Front) F/2.2 F/2.45 Samsung Galaxy Z Fold2 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) - Live Photos, Portrait
Camera Features (Front) - 2 x digital zoom
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 X51 5G
Battery Capacity (Battery Size) 4500 mAh 4315 mAh Samsung Galaxy Z Fold2 5G has larger battery capacity than Vivo X51 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 X51 5G
Technology WCDMA (UMTS) / GSM CDMA2000 1X / GSM / WCDMA (UMTS)
Mobile Broadband Generation 5G 5G Both phones have the same mobile network generation.
Operating System Android 10 Funtouch OS 10 (based on Android 10)
Intelligent Assistant Bixby -
Payment Technology Samsung Pay -
Navigation GPS, GLONASS, BeiDou, Galileo GPS, GLONASS, BeiDou, Galileo
COMMUNICATIONS Samsung Galaxy Z Fold2 5G Vivo X51 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, 800 CDMA2000 1X
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, n38, n41, n77, n78
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 2600, TDD TD 2500, TDD TD 3700, TDD TD 3500
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 X51 5G
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), AMR-WB, AMR-NB, Vorbis
Supported Digital Video Standards MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4 MKV, AVI, 3GP, TS, MP4
Sound Enhancements Dolby Digital Plus sound, Dolby Atmos sound technology, Surround sound, stereo speakers tuned by AKG, Dolby Digital sound -
Audio Amplifier - AK4377A
FEATURES Samsung Galaxy Z Fold2 5G Vivo X51 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
Security Devices Face recognition, fingerprint reader (side) Fingerprint reader
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 -
OTHERS Samsung Galaxy Z Fold2 5G Vivo X51 5G
Included Accessories Power adapter, SIM card removal tool, USB-C cable, protective case, Samsung Galaxy Buds Live Headset, USB cable, power adapter, SIM card removal tool, USB-C to 3.5 jack adapter, protective case, protective film
Compliant Standards VDE, SGS Eye Care Display Certification IP53
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