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Samsung Galaxy M51 (SM-M515F/DSN 8GB RAM) vs Samsung Galaxy Z Flip 4 (SM-F721U 128GB)

Side by side comparison between Samsung Galaxy M51 vs Samsung Galaxy Z Flip 4 phones, differences, pros, cons and full specifications. What's the better?

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Compare Samsung Galaxy Z Flip 4 X Samsung Galaxy M51 (SM-M515F/DSN 8GB RAM) 08Points
6.7"
AMOLED

1080x2340

64
MP

32mp

8GB
RAM

Octa-core

7000
mAh

(Non removable)

vs
23Points Samsung Galaxy Z Flip 4 (SM-F721U 128GB) Compare Samsung Galaxy M51 X
6.7"
AMOLED

1080x2640

12.2
MP

10mp

8GB
RAM

Octa-core

3700
mAh

(Non removable)

What's the better phone? Samsung Galaxy Z Flip 4 (SM-F721U 128GB)

The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!

Galaxy M51 (SM-M515F/DSN 8GB RAM)} 8 Advantages Samsung Galaxy M51 (SM-M515F/DSN 8GB RAM) vs Galaxy Z Flip 4 (SM-F721U 128GB)} 23 Advantages Samsung Galaxy Z Flip 4 (SM-F721U 128GB)
+Until 1TB microSD, microSDXCAdvantage
More external storage for files using memory cards
vsNot supported
+(quad camera) 64MP + 12MP + 5MP + 5MP3 times
Higher resolution main camera
vs(dual camera) 12.2MP + 12MP
+1/1.73" inches2%
The larger sensor camera lets you take photos with better depth.
vs1/1.76" inches
+(front) 32MP2 times
Higher resolution secondary camera to take pictures and selfies
vs(front) 10MP
+7000 mAh89%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
vs3700 mAh
+3.5mm jackAdvantage
Headsets with 3.5mm Jack size are more common and easy to find in stores
vsType-C reversible connector
+FMAdvantage
The radio lets you listen to your songs and sports in general
vsNot supported
+Gorilla Glass 3Advantage
Protection against scratches on the screen lets you carry your phone with your keys
vsNot supported
2.2GHz 64bit Octa-core (8nm)vs+3.19GHz 64bit Octa-core (4nm)41%
More powerful processor, you can open your applications faster
8GB LPDDR4Xvs+8GB LPDDR5Advantage
This RAM type is better and more efficient.
eMMC 5.1vs+UFS 3.1Advantage
Fastest write and read storage.
213 grams (7.46 ounces)vs+187 grams (6.55 ounces)14%
Lighter
9.5 millimeters (0.37 inches)vs+6.9 millimeters (0.27 inches)38%
Thinner
Plastic body, glass frontvs+Aluminum frame, flexible plastic screen, glass backAdvantage
More resistant material
Not supportedvs+HDR10+Advantage
The HDR10+ display provides vibrant colors and more details
60Hzvs+120Hz100%
The display reproduces more frames per second because the frequency (Hertz) is higher, improves fluidity and tires your eyes less.
1080x2340 pixelsvs+1080x2640 pixels13%
Higher resolution screen
385 PPIvs+426 PPI11%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
EIS: Digital stabilizationvs+OIS: Optical stabilizationAdvantage
Image stabilization prevents blurry photos and helps in recording motion video
Not supportedvs+BSI sensorAdvantage
The BSI sensor allows the entry of more light generating photos with more detail and brightness
(front) Full HD (1920x1080)vs+(front) 4K UHD (3840x2160)3 times
More image quality for recording videos with the secondary camera
Android 11vs+Android 15Advantage
Android 15 is newer and safer
4G LTE-Avs+5G mmWaveAdvantage
The 5G mmWave network is newer and faster
(4G LTE-A) 400 Mbpsvs+(5G mmWave) 5000 Mbps12 times
Faster for surfing the internet and download files
Not supportedvs+BarometerAdvantage
Sensors help you use the device
Not supportedvs+Qi Wireless charging (Qi/WPC)Advantage
Wireless charging is another way to charge the battery.
2 slots (Dual-SIM)
(dedicated slot)
vs+1 slot (Single-SIM) + e-SIM (Eletronic)Advantage
You can have more mobile carriers/operators on the same device.
802.11 a/b/g/n/ac [wifi5]vs+802.11 a/b/g/n/ac/ax [wifi6]Advantage
WiFi 802.11 a/b/g/n/ac/ax [wifi6] is newer and faster
Not supportedvs+DLNAAdvantage
With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.
5.0 + A2DP/LEvs+5.2 + A2DP/LEAdvantage
Bluetooth 5.2 + A2DP/LE is newer and faster
Not supportedvs+IPX8 certifiedAdvantage
Protection against water allows you talk to your friends in the rain, for example

29 Common items in both devices
128GB (106GB available) / 128GB (99GB available)
Super AMOLED Plus / Dynamic AMOLED
16 million
6.7"
LED flash
Only digital zoom
PDAF: phase detection autofocus
+22 specs and more in the table below

Check the comparison table below for more items that are not evaluated in comparison score above.

Highlight differences Clear highlight

📱 Model features

Galaxy M51 (SM-M515F/DSN 8GB RAM)Galaxy Z Flip 4 (SM-F721U 128GB)
ModelGalaxy M51 (SM-M515F/DSN 8GB RAM)Galaxy Z Flip 4 (SM-F721U 128GB)
Other model namesSamsung Galaxy M51 SM-M515F/DSN (8GB RAM)Galaxy Z Flip4 5G (SM-F721U1)
Country or region availableIndiaMalaysiaTurkey
India, Malaysia, Turkey
USA
USA
BrandSamsungSamsung
Release date9/11/20208/25/2022, Announced: 8/10/2022
Depth9.5 millimeters (0.37 inches)6.9 millimeters (0.27 inches)
Size (width x height)76.3 x 163.9 millimeters (3 x 6.45 in)71.9 x 165.2 millimeters (2.83 x 6.5 in)
Weight213 grams (7.46 ounces)187 grams (6.55 ounces)
Build, materialsPlastic body, glass frontAluminum frame, flexible plastic screen, glass back
Back: Gorilla Glass Victus+
Folded: 15.9 x 71.9 x 84.9 mm
Protection against water and othersNot supportedIPX8 certified: water resistant up to 1.5 meters and 30min

📲 Display

Galaxy M51 (SM-M515F/DSN 8GB RAM)Galaxy Z Flip 4 (SM-F721U 128GB)
Display typeSuper AMOLED PlusDynamic AMOLED
Screen size6.7" inches6.7" inches
Screen-to-body ratio~88.1% (screen-to-body ratio)~85.4% (screen-to-body ratio)
Display resolution1080x2340 pixels (19.5:9)1080x2640 pixels
TouchscreenCapacitive MultitouchCapacitive Multitouch
Pixel density (dot pitch)385 PPI426 PPI
Colors16 million16 million
Scratch-resistant glassGorilla Glass 3Not supported
Refresh rate60Hz120Hz
Display featuresNot supported1200nits[peak]
HDR10+
Always-On Display
Extra display: Super AMOLED 1.9" (260x512), Gorilla Glass Victus+

🤖 Operating System

Galaxy M51 (SM-M515F/DSN 8GB RAM)Galaxy Z Flip 4 (SM-F721U 128GB)
System versionAndroid 10Android 12
Firmware updateAndroid 11Android 15
User Interfacefeature not registeredOne UI 4.1 / 5.1 / 6.0 / 7.0

⚙️ Processor

Galaxy M51 (SM-M515F/DSN 8GB RAM)Galaxy Z Flip 4 (SM-F721U 128GB)
Chipset64bit: Qualcomm Snapdragon 730G (SM7150-AB) (8nm)64bit: Qualcomm Snapdragon 8+ Gen 1 (SM8475) (4nm)
CPUOcta-core, 2 processors:
2x 2.2GHz Kryo 470 Gold (Dual-core)
6x 1.8GHz Kryo 470 Silver (Hexa-core)
Octa-core, 3 processors:
1x 3.19GHz ARM Cortex-X2 (Single-core)
3x 2.75GHz ARM Cortex-A710 (Triple-core)
4x 2GHz ARM Cortex-A510 (Quad-core)
GPU graphical controllerQualcomm Adreno 618 (700MHz)Qualcomm Adreno 730 (818MHz)
Performance (benchmark)feature not registeredAnTuTu: 685765 (v8), 800001 (v9)
Geekbench: 3913 (v5.1)
GFXBench: 74fps (ES 3.1 onscreen)

💽 Memory and storage

Galaxy M51 (SM-M515F/DSN 8GB RAM)Galaxy Z Flip 4 (SM-F721U 128GB)
RAM memory8GB LPDDR4X8GB LPDDR5
Internal storage128GB (106GB available)
eMMC 5.1
128GB (99GB available)
UFS 3.1
External storageUntil 1TB microSD, microSDXC
(dedicated slot)
Not supported

📶 Mobile networks

Galaxy M51 (SM-M515F/DSN 8GB RAM)Galaxy Z Flip 4 (SM-F721U 128GB)
Dual-SIMDual-SIM Standby - Call active on one sim card
(dedicated slot)
Dual-SIM Standby - Call active on one sim card
SIM card2 slots (Dual-SIM)
nano-SIM (4FF)
1 slot (Single-SIM)
nano-SIM (4FF) + e-SIM
Maximum Download / Upload400/50 Mbps5000/1024 Mbps
Network technology2G, 3G, 4G2G, 3G, 4G, 5G
Frequency, bands Expand band details Collapse details
GSM MHz bandQuad-Band 850/900/1800/1900Quad-Band 850/900/1800/1900
Primary 2G networkGSM 850/900/1800/1900CDMA 800/1900, GSM 850/900/1800/1900
Primary 3G networkUMTS 850/900/1700/1900/2100CDMA2000 1xEV-DO
UMTS 850/900/1700/1900/2100
Primary 4G networkLTE Cat6 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 66)
TD-LTE (38, 40, 41)
VoLTE
LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 66, 71)
TD-LTE (38, 39, 40, 41, 46, 48)
VoLTE
Primary 5G networkNot supportedSA/NSA/Sub6 (2, 5, 25, 41, 66, 71)
mmWave (260, 261)
Primary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-AGPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6, mmWave
Secondary 2G networkGSM 850/900/1800/1900CDMA 800/1900, GSM 850/900/1800/1900
Secondary 3G networkNot supportedCDMA2000 1xEV-DO
UMTS 850/900/1700/1900/2100
Secondary 4G networkNot supportedLTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 66, 71)
TD-LTE (38, 39, 40, 41, 46, 48)
VoLTE
Secondary data networkGPRS, EDGEGPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6, mmWave

📷 Camera

Galaxy M51 (SM-M515F/DSN 8GB RAM)Galaxy Z Flip 4 (SM-F721U 128GB)
Back camera (main camera)(quad camera)
64 megapixels
12MP ultrawide f/2.2123°
5MP macro f/2.4
5MP depth f/2.4
(dual camera)
12.2 megapixels
12MP ultrawide f/2.2123°1.12µm
Main camera resolution10120x6328 pixels4032x3024 pixels
Video recording (primary)4K UHD (3840x2160) 30 fps4K UHD (3840x2160) 60 fps
FlashLED flashLED flash
Focal aperturef/1.8 (aperture)f/1.8 (aperture)
Focal length26mm (lens)24mm (lens)
Sensor size1/1.73" inches1/1.76" inches
Pixel size0.8µm pixel1.8µm pixel
AutofocusPDAF: phase detection autofocusPDAF: phase detection autofocus
Touch focusSupportedSupported
Image stabilizationEIS: Digital stabilizationOIS: Optical stabilization
ZoomOnly digital zoomOnly digital zoom
Face/smile detectionFace detection, Smile detectionFace detection, Smile detection
BSI sensorNot supportedSupported
HDRHDR photo on both camerasHDR photo/video on both cameras
Camera extrasfeature not registered4K@30/60fps
1080p@30/60/240fps
720p@960fps
HDR10+
Slow motion

📸 Front camera

Galaxy M51 (SM-M515F/DSN 8GB RAM)Galaxy Z Flip 4 (SM-F721U 128GB)
Front camera (secondary)32 megapixels10 megapixels
Front camera resolution6528x4896 pixels3872x2592 pixels
Video recording (secondary)Full HD (1920x1080)4K UHD (3840x2160)
Front flashNot supportedNot supported
Focal aperturef/2.0 (aperture)f/2.4 (aperture)
Focal length26mm (lens)26mm (lens)
Sensor size1/2.8" inches1/3" inches
Pixel size0.8µm pixel1.22µm pixel

🔉 Sound and multimedia

Galaxy M51 (SM-M515F/DSN 8GB RAM)Galaxy Z Flip 4 (SM-F721U 128GB)
LoudspeakerSupportedStereo sound
32-bit/384kHz
Dolby Atmos
Tuned by AKG
Active noise cancellation2 microphones or more2 microphones or more
RadioFMNot supported
TVNot supportedNot supported
Video formatsMP4, H.265, H.264, H.263, XviD, MKVMP4, H.265, H.264, H.263, XviD, MKV
Audio formatsMP3, WAV, WMA, eAAC+, FLACMP3, WAV, WMA, eAAC+, FLAC

🔌 Connectivity

Galaxy M51 (SM-M515F/DSN 8GB RAM)Galaxy Z Flip 4 (SM-F721U 128GB)
USBUSB 2.0 Type-C reversible connectorUSB 2.0 Type-C, USB OTG On-The-Go
Audio output3.5mm jackType-C reversible connector
TV outputNot supportedUSB Type-C (reversible)
Bluetooth5.0 + A2DP/LE5.2 + A2DP/LE
WiFi802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO
WiFi Direct, hotspot
802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO
WiFi Direct, hotspot
DLNANot supportedSupported
GPSA-GPS, GeoTagging, GLONASS, GALILEO, BeiDouA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFCSupportedSupported
Infrared portNot supportedNot supported

🧭 Sensors

Galaxy M51 (SM-M515F/DSN 8GB RAM)Galaxy Z Flip 4 (SM-F721U 128GB)
SensorsAccelerometer
Ambient light sensor
Compass
Face unlock
Fingerprint sensor (side-mounted)
Gyroscope
Proximity sensor
Accelerometer
Ambient light sensor
Barometer
Compass
Face unlock
Fingerprint sensor (side-mounted)
Gyroscope
Hall effect
Proximity sensor
Vibrating alertSupportedSupported

🔋 Battery

Galaxy M51 (SM-M515F/DSN 8GB RAM)Galaxy Z Flip 4 (SM-F721U 128GB)
Battery typeLiPo: li-ion polymer (Non removable)LiPo: li-ion polymer (Non removable)
Battery capacity7000 mAh3700 mAh
Charger, watts25W Wired fast charging
Reverse charging by cable
25W Wired fast charging
Reverse charging by cable
USB Power Delivery 3.0
Inductive / wireless chargingNot supported15W Qi Wireless charging (Qi/WPC)
4.5W Reverse wireless charging
Talk time autonomy64 hours (2.7 days)34 hours (1.4 days)
Standbyfeature not registeredfeature not registered

➕ Other features

Galaxy M51 (SM-M515F/DSN 8GB RAM)Galaxy Z Flip 4 (SM-F721U 128GB)
Call controlVoice dialing, Voice recorder, Voice commandsVoice dialing, Voice recorder, Voice commands
MessagingSMS (T9), MMS, E-mail, Push mailSMS (T9), MMS, E-mail, Push mail
Hands-free callingSupportedSupported
Video callingSupportedSupported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserHTML, XHTML, HTML5HTML, XHTML, HTML5
AntennaInternal antennaInternal antenna
Qwerty physical keyboardNot supportedNot supported
Miscellaneous• Colors: Celestial Black, Electric Blue
• One UI 2.1, 3.1
• Colors: Graphite, White, Bora Purple, Pink Gold, Blue, Yellow, Navy, Khaki, Red
• Samsung Pay (Visa, MasterCard)

☢️ Radiation rate

Galaxy M51 (SM-M515F/DSN 8GB RAM)Galaxy Z Flip 4 (SM-F721U 128GB)
SAR 1.6W/kg (USA, Mexico, etc.)feature not registered1.02W/kg (head), 0.94W/kg (body)
SAR 2W/kg (Europe, UK, etc.)0.609W/kg (head), 1.446W/kg (body)feature not registered
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