In depth comparison and review of Samsung Galaxy A51 5G and Samsung Galaxy Z Fold2 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 A51 5G | Samsung Galaxy Z Fold2 5G |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | SM-A516B/DS | SM-F916B | |
| Form Factor | Touch | Folder - touch screen, dual screen | |
| Height | 158.9 mm | 159.2 mm | Samsung Galaxy Z Fold2 5G has greater height than Samsung Galaxy A51 5G. |
| Width | 73.6 mm | 68 mm | Samsung Galaxy A51 5G has greater width than Samsung Galaxy Z Fold2 5G. |
| Depth | 8.7 mm | 16.8 mm | Samsung Galaxy A51 5G is narrower than Samsung Galaxy A51 5G. |
| Weight | 187 g | 282 g | Samsung Galaxy A51 5G is lighter than Samsung Galaxy A51 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 |
|
| Body Colour | Prism cube black | Prism cube white | 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 | |
| Body Material | - | Gorilla glass 6 | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.555 W/kg (body), 0.496 W/kg (head) | 0.291 W/kg (head, LTE), 0.859 W/kg (head, 5G), 1.453 W/kg (body) | |
| Connector Type | USB Type-C - 24 pin USB-C Headset 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 | |
| SIM Card Configuration Details | Nano SIM + nano SIM/microSD | - |
| DISPLAY | Samsung Galaxy A51 5G | Samsung Galaxy Z Fold2 5G |
|---|
| Display Type | OLED display | OLED display | |
|---|---|---|---|
| Display Technology | Infinity-O Super AMOLED | Infinity Flex Dynamic AMOLED 2X | |
| Foldable Display | - | Yes | |
| Display Design | - | Inward folding | |
| Screen Size (Display Size) | 6.5" | 7.6" | Samsung Galaxy Z Fold2 5G has larger screen size than Samsung Galaxy A51 5G. |
| Screen Resolution (Display Resolution) | 2400 x 1080 pixels | 2208 x 1768 pixels | Samsung Galaxy Z Fold2 5G has better screen resolution than Samsung Galaxy A51 5G. |
| Display Format | Full HD+ | QXGA+ | |
| Pixel Density | - | 373 ppi | |
| Aspect Ratio | - | 22.5:18 | |
| 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 | Edge-to-Edge screen | 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 A51 5G | Samsung Galaxy Z Fold2 5G |
|---|
| Clock Speed | 2.2 GHz | 3.09 GHz | Samsung Galaxy Z Fold2 5G has higher clock speed than Samsung Galaxy A51 5G. |
|---|---|---|---|
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | - | Samsung Galaxy A51 5G has 64-bit architecture. |
| MEMORY | Samsung Galaxy A51 5G | Samsung Galaxy Z Fold2 5G |
|---|
| RAM | 6 GB | 12 GB | Samsung Galaxy Z Fold2 5G has more RAM than Samsung Galaxy A51 5G. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 256 GB | Samsung Galaxy Z Fold2 5G has more internal memory than Samsung Galaxy A51 5G. |
| User Memory | 105.3 GB | 220.6 GB | |
| Memory Interface | - | UFS 3.1 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 1 TB | - |
| CAMERA | Samsung Galaxy A51 5G | Samsung Galaxy Z Fold2 5G |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 4 | 3 | |
|---|---|---|---|
| Sensor Resolution | 48 Megapixel | 12 Megapixel | Samsung Galaxy A51 5G has better camera resolution than Samsung Galaxy Z Fold2 5G. |
| Lens Type | - | Ultra wide-angle lens | |
| Lens Aperture | F/2.0 | F/2.2 | Samsung Galaxy A51 5G has better lens aperture than Samsung Galaxy A51 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 | |
| Optical Zoom | - | 2x | |
| Digital Zoom | 8x | 10x | Samsung Galaxy Z Fold2 5G has better digital zoom than Samsung Galaxy A51 5G. |
| Self-Timer Delay | - | Yes | |
| Special Effects | Bokeh effect | HDR, Grid Line, Motion photos | |
| Camera Modes | Slow motion video | 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 | |
| Face Recognition (Face ID) | - | Face detection | Samsung Galaxy Z Fold2 5G has face detection. |
| Light Source | LED flash | High CRI LED flash | |
| Video Resolutions | Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps, Slo-mo video 1280 x 720 (720p) at 480 fps | 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) | Live Focus, background blur | 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 |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 12 Megapixel | 12 Megapixel | Both phones have the same second camera resolution. |
|---|---|---|---|
| Lens Type (2nd Camera) | Ultra wide-angle lens | Wide-angle lens | |
| Lens Aperture (2nd Camera) | F/2.2 | F/1.8 | Samsung Galaxy Z Fold2 5G has better second camera lens aperture than Samsung Galaxy A51 5G. |
| Field of View (2nd Camera) | 123 degree(s) | 83 degree(s) | Samsung Galaxy A51 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) | 5 Megapixel | 12 Megapixel | Samsung Galaxy Z Fold2 5G has higher resolution third camera than Samsung Galaxy A51 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) | Macro camera | - | |
| Camera Features (3rd Camera) | - | Phase Detect Auto-Focus (PDAF) |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | 5 Megapixel | - | |
|---|---|---|---|
| Lens Aperture (4th Camera) | F/2.2 | - | |
| Camera Functions (4th Camera) | Depth camera | - |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 2 | |
|---|---|---|---|
| Sensor Resolution (Front) | 32 Megapixel | 10 Megapixel | Samsung Galaxy A51 5G has better front camera resolution than Samsung Galaxy Z Fold2 5G. |
| Lens Aperture (Front) | F/2.2 | F/2.2 | Both phones have the same front camera lens aperture. |
| Field of View (Front) | - | 80 degree(s) | |
| Pixel Size (Front) | - | 1.22 μm | |
| Focus Adjustment | Focus free | - | |
| Special Effects (Front) | - | HDR, Grid Line |
| 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 A51 5G | Samsung Galaxy Z Fold2 5G |
|---|
| Battery Capacity (Battery Size) | 4500 mAh | 4500 mAh | Both phones have the same battery capacity. |
|---|---|---|---|
| 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 | 1380 minutes | 1860 minutes | Samsung Galaxy Z Fold2 5G has longer battery life when making calls than Samsung Galaxy A51 5G. |
| Run Time Details | Talk (4G): up to 1380 min Active online usage (LTE): up to 16 hrs Active online usage (Wi-Fi): up to 17 hrs Playback (video): up to 19 hrs Playback (audio): up to 86 hrs |
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 |
| CELLULAR | Samsung Galaxy A51 5G | Samsung Galaxy Z Fold2 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 | |
| Intelligent Assistant | Bixby | Bixby | |
| Payment Technology | - | Samsung Pay | |
| Navigation | GPS, GLONASS, BeiDou, Galileo | GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Samsung Galaxy A51 5G | Samsung Galaxy Z Fold2 5G |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, 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 5, Band 8 | Band 1, Band 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 850, 900 | 2100, 1900, 1700, 850, 900 | |
| 4G LTE Band | Band 1, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 20, Band 28, Band 38, 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 38, Band 39, Band 40, Band 41, Band 66 | |
| 4G LTE Frequency | FDD 2100, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 800 DD, FDD 700 APT, TDD 2600, 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, TDD 2600, TDD 1900, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | |
| 5G NR Band | N41, n78 | N1, n3, n5, n7, n8, n28, n41, n77, n78, n40 | |
| 5G NR Frequency | TDD TD 2500, TDD TD 3500 | FDD 2100, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 700APT, TDD TD 2500, TDD TD 3700, TDD TD 3500, TDD 2300 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac, ANT+ | IEEE 802.11a/b/g/n/ac, IEEE 802.11a/b/g/n/ac/ax | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.0 LE | |
| 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 | SMS, MMS |
| MEDIA | Samsung Galaxy A51 5G | Samsung Galaxy Z Fold2 5G |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID | 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 | MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4 | |
| Sound Enhancements | - | Dolby Digital Plus sound, Dolby Atmos sound technology, Surround sound, stereo speakers tuned by AKG, Dolby Digital sound |
| FEATURES | Samsung Galaxy A51 5G | Samsung Galaxy Z Fold2 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, ambient light sensor, gyro sensor, hall sensor, geomagnetic sensor | Accelerometer, proximity sensor, barometer, gyro sensor, hall sensor, geomagnetic sensor, light sensor | |
| Security Devices | Fingerprint reader (under display) | Face recognition, fingerprint reader (side) | |
| Additional Phone Features | Fast Charging, Samsung KNOX, Bixby Vision, Bixby Routines, Virtual Proximity Sensing | 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 A51 5G | Samsung Galaxy Z Fold2 5G |
|---|
| Included Accessories | Power adapter | Power adapter, SIM card removal tool, USB-C cable, protective case, Samsung Galaxy Buds Live | |
|---|---|---|---|
| Compliant Standards | - | VDE, SGS Eye Care Display Certification |
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