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Xiaomi Black Shark 4S (128GB/12GB) vs Samsung Galaxy A51 (SM-A515F/DSN)

Side by side comparison between Xiaomi Black Shark 4S vs Samsung Galaxy A51 phones, differences, pros, cons and full specifications. What's the better?

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Compare Samsung Galaxy A51 XXiaomi Black Shark 4S (128GB/12GB)17Points
Xiaomi Black Shark 4S (128GB/12GB)
6.67"
AMOLED

1080x2400

48
MP

20mp

12GB
RAM

64bit Octa

4500
mAh

(Non removable)

vs
10PointsSamsung Galaxy A51 (SM-A515F/DSN)Compare Xiaomi Black Shark 4S X
Samsung Galaxy A51 (SM-A515F/DSN)
6.5"
AMOLED

1080x2400

48
MP

32mp

6GB
RAM

64bit Octa

4000
mAh

(Non removable)

What's the better phone? Xiaomi Black Shark 4S (128GB/12GB)

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!

Black Shark 4S (128GB/12GB)17 Advantages Xiaomi Black Shark 4S (128GB/12GB)vsGalaxy A51 (SM-A515F/DSN)10 Advantages Samsung Galaxy A51 (SM-A515F/DSN)
+3.2GHz 64bit Octa-Core45%
More powerful processor, you can open your applications faster
vs2.3GHz 64bit Octa-Core
+12GB LPDDR5100%
More RAM memory. Typically more responsive and better for multitasking.
vs6GB LPDDR4X
+UFS 3.1Advantage
Fastest write and read storage.
vseMMC 5.1
+Aluminum body, glass front, plastic backAdvantage
More resistant material
vsPlastic body, glass front
+HDR10+Advantage
The HDR10+ display provides vibrant colors and more details
vsNot supported
+144Hz140%
The display reproduces more frames per second because the frequency (Hertz) is higher, improves fluidity and tires your eyes less.
vs60Hz
+6.67"3%
Larger screen
vs6.5"
+BSI sensorAdvantage
The BSI sensor allows the entry of more light generating photos with more detail and brightness
vsNot supported
+f/1.8 (aperture)11%
Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
vsf/2.0 (aperture)
+5G SA/NSAAdvantage
The 5G SA/NSA network is newer and faster
vs4G+ LTE-A
+(5G SA/NSA) 2000 Mbps2 times
Faster for surfing the internet and download files
vs(4G+ LTE-A) 600 Mbps
+BarometerAdvantage
Sensors help you use the device
vsNot supported
+Proximity sensorAdvantage
Sensors help you use the device
vsVirtual proximity sensor
+4500 mAh13%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
vs4000 mAh
+120W7 times
More power (watts) to charge the battery faster. Sometimes, the charger that comes with the device doesn't have the same power supported by the device. Check before you buy it.
vs15W
+802.11 a/b/g/n/ac/ax wifi6 (2.4Ghz, 5Ghz) + MIMOAdvantage
WiFi 802.11 a/b/g/n/ac/ax wifi6 (2.4Ghz, 5Ghz) + MIMO is newer and faster
vs802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO
+5.2 + A2DP/LEAdvantage
Bluetooth 5.2 + A2DP/LE is newer and faster
vs5.0 + A2DP/LE
Not supportedvs+Until 1TB microSD, microSDXCAdvantage
More external storage for files using memory cards
210 grams (7.35 ounces)vs+172 grams (6.02 ounces)22%
Lighter
9.9 millimeters (0.39 inches)vs+7.9 millimeters (0.31 inches)25%
Thinner
395 PPIvs+405 PPI3%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
(triple camera) 48MP + 8MP + 5MPvs+(quad camera) 48MP + 12MP + 5MP + 5MP15%
Higher resolution main camera
(front) 20MPvs+(front) 32MP61%
Higher resolution secondary camera to take pictures and selfies
(front) Full HD (1920x1080)vs+(front) 4K UHD (3840x2160)3 times
More image quality for recording videos with the secondary camera
Not supportedvs+ANT+Advantage
Sensors help you use the device
Not supportedvs+FM (RDS)Advantage
The radio lets you listen to your songs and sports in general
Not supportedvs+Gorilla Glass 3Advantage
Protection against scratches on the screen lets you carry your phone with your keys

31 Common items in both devices
128GB (103GB available) / 128GB (107GB available)
Super AMOLED
16 million
1080x2400 pixels
LED flash
Only digital zoom
PDAF: phase detection autofocus
+24 specs and more in the table below

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

Highlight differencesClear highlight

📱 Model features

Xiaomi Black Shark 4S (128GB/12GB)Samsung Galaxy A51 (SM-A515F/DSN)
ModelBlack Shark 4S (128GB/12GB)Galaxy A51 (SM-A515F/DSN)
Other model namesBlack Shark 4S (128GB+12GB RAM), 黑鲨4SSamsung Galaxy A51 SM-A515F/DSN
Country or region available(Global, International)
(Global, International)
(Europe)(Global, International)United Arab EmiratesPakistanTaiwan
(Europe), (Global, International), United Arab Emirates, Pakistan, Taiwan
BrandXiaomiSamsung
Release date10/16/2021, Announced: 10/13/202112/16/2019, Announced: 12/12/2019
Depth9.9 millimeters (0.39 inches)7.9 millimeters (0.31 inches)
Size (width x height)76.21 x 163.69 millimeters (3 x 6.44 in)73.6 x 158.5 millimeters (2.9 x 6.24 in)
Weight210 grams (7.35 ounces)172 grams (6.02 ounces)
Build, materialsAluminum body, glass front, plastic backPlastic body, glass front
Protection against water and othersNot supportedNot supported

🤖 Operating System

Xiaomi Black Shark 4S (128GB/12GB)Samsung Galaxy A51 (SM-A515F/DSN)
System versionAndroid 11Android 10
Firmware updatefeature not registeredAndroid 11
User InterfaceJoy UI 12feature not registered

⚙️ Processor

Xiaomi Black Shark 4S (128GB/12GB)Samsung Galaxy A51 (SM-A515F/DSN)
Chipset64bit - Qualcomm Snapdragon 870 (SM8250-AC) (7nm)64bit - Samsung Exynos 9611 (10nm)
CPUOcta-Core, 3 processors:
3.2GHz Single-Core Kryo 585
2.42GHz Triple-Core Kryo 585
1.8GHz Quad-Core Kryo 585
Octa-Core, 2 processors:
2.3GHz Quad-Core ARM Cortex-A73
1.7GHz Quad-Core ARM Cortex-A53
GPU graphical controllerQualcomm Adreno 650 (670MHz)ARM Mali-G72 MP3 (850MHz)
Performance (benchmark)AnTuTu: 710538 (v9)
Geekbench: 3451 (v5.1)
feature not registered

💽 Memory and storage

Xiaomi Black Shark 4S (128GB/12GB)Samsung Galaxy A51 (SM-A515F/DSN)
RAM memory12GB LPDDR56GB LPDDR4X
Internal storage128GB (103GB available)
UFS 3.1
128GB (107GB available)
eMMC 5.1
External storageNot supportedUntil 1TB microSD, microSDXC
(dedicated slot)

📲 Display

Xiaomi Black Shark 4S (128GB/12GB)Samsung Galaxy A51 (SM-A515F/DSN)
Display typeSuper AMOLEDSuper AMOLED
Screen size6.67" inches6.5" inches
Screen-to-body ratio~86.1% (screen-to-body ratio)~87.4% (screen-to-body ratio)
Display resolution1080x2400 pixels (20:9)1080x2400 pixels (20:9)
TouchscreenCapacitive Multitouch 10-pointsCapacitive Multitouch
Pixel density (dot pitch)395 PPI405 PPI
Colors16 million16 million
Scratch-resistant glassNot supportedGorilla Glass 3
Display features144Hz, 1300nits[peak]
HDR10+
Always-On Display
60Hz

📶 Mobile networks

Xiaomi Black Shark 4S (128GB/12GB)Samsung Galaxy A51 (SM-A515F/DSN)
Dual-SIMDual-SIM Standby - Call active on one sim cardDual-SIM Standby - Call active on one sim card
(dedicated slot)
SIM card2 slots (Dual-SIM)
nano-SIM (4FF)
2 slots (Dual-SIM)
nano-SIM (4FF)
Maximum download/upload2000/1024 Mbps600/150 Mbps
Network technology2G, 3G, 4G, 5G2G, 3G, 4G
Frequency, bandsExpand band detailsCollapse details
GSM MHz bandQuad-Band 850/900/1800/1900Quad-Band 850/900/1800/1900
Primary 2G networkCDMA 800, GSM 850/900/1800/1900GSM 850/900/1800/1900
Primary 3G networkCDMA2000 1xEV-DO
TD-SCDMA 1900/2000
UMTS 800/850/900/1700/1900/2100
UMTS 850/900/1700/1900/2100
Primary 4G networkLTE Cat18 (1, 2, 3, 4, 5, 7, 8, 18, 19, 20, 26, 28)
TD-LTE (34, 38, 39, 40, 41)
VoLTE
LTE Cat12/13 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 66)
TD-LTE (38, 40, 41)
VoLTE
Primary 5G networkSA/NSA (1, 3, 8, 28, 41, 77, 78)Not supported
Primary data networkGPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, 5G SA/NSAGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
Secondary 2G networkGSM 850/900/1800/1900GSM 850/900/1800/1900
Secondary 3G networkUMTS 800/850/900/1700/1900/2100Not supported
Secondary 4G networkLTE Cat18 (1, 2, 3, 4, 5, 7, 8, 18, 19, 20, 26, 28)
TD-LTE (34, 38, 39, 40, 41)
VoLTE
Not supported
Secondary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-AGPRS, EDGE

📷 Camera

Xiaomi Black Shark 4S (128GB/12GB)Samsung Galaxy A51 (SM-A515F/DSN)
Back camera (main camera)(triple camera)
48 megapixels
8MP ultrawidef/2.2120°1/4"1.12µm
5MP macrof/2.4AF
(quad camera)
48 megapixels
12MP ultrawidef/2.213mm1.12µm
5MP telephotof/2.440mm
5MP depthf/2.21/5.0"1.12µm
Main camera resolution8000x6000 pixels8000x6000 pixels
Video recording (primary)4K UHD (3840x2160) 60 fps4K UHD (3840x2160) 30 fps
FlashLED flashLED flash
Focal aperturef/1.8 (aperture)f/2.0 (aperture)
Focal length26mm lens26mm lens
Sensor size1/2" inches1/2" inches
Pixel size0.8µm pixel0.8µm pixel
AutofocusPDAF: phase detection autofocusPDAF: phase detection autofocus
Touch focusSupportedSupported
Image stabilizationEIS: Digital stabilizationEIS: Digital stabilization
ZoomOnly digital zoomOnly digital zoom
Face/smile detectionFace detection, Smile detectionFace detection, Smile detection
BSI sensorSupportedNot supported
HDRHDR photo/video on both camerasHDR photo on both cameras
Camera extras1080p@960fpsfeature not registered

📸 Front camera

Xiaomi Black Shark 4S (128GB/12GB)Samsung Galaxy A51 (SM-A515F/DSN)
Front camera (secondary)20 megapixels32 megapixels
Front camera resolution5184x3840 pixels6528x4896 pixels
Video recording (secondary)Full HD (1920x1080)4K UHD (3840x2160)
Front flashNot supportedNot supported
Focal aperturef/2.0 (aperture)f/2.2 (aperture)
Focal lengthfeature not registered26mm lens
Sensor sizefeature not registered1/2.8" inches
Pixel size0.8µm pixel0.8µm pixel

🔉 Sound and multimedia

Xiaomi Black Shark 4S (128GB/12GB)Samsung Galaxy A51 (SM-A515F/DSN)
LoudspeakerStereo sound with dual speakers
24-bit/192kHz
Supported
Active noise cancellation2 microphones or more2 microphones or more
RadioNot supportedFM (RDS)
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

Xiaomi Black Shark 4S (128GB/12GB)Samsung Galaxy A51 (SM-A515F/DSN)
USBUSB 2.0 Type-C, USB OTG On-The-GoUSB 2.0 Type-C, USB OTG On-The-Go
Audio output3.5mm jack3.5mm jack
TV outputUSB Type-C (reversible)Not supported
Bluetooth5.2 + A2DP/LE5.0 + A2DP/LE
WiFi802.11 a/b/g/n/ac/ax wifi6 (2.4Ghz, 5Ghz) + MIMO
WiFi Direct, hotspot
802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO
WiFi Direct, hotspot
DLNANot supportedNot supported
GPSA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSSA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFCSupportedSupported
Infrared portNot supportedNot supported

🧭 Sensors

Xiaomi Black Shark 4S (128GB/12GB)Samsung Galaxy A51 (SM-A515F/DSN)
SensorsAccelerometer
Ambient Light sensor
Barometer
Compass
Face unlock
Fingerprint sensor (side-mounted)
Gyroscope
Proximity sensor
Accelerometer
Ambient Light sensor
ANT+
Compass
Face unlock
Fingerprint sensor (under display)
Gyroscope
Hall effect
Virtual proximity sensor
Vibrating alertSupportedSupported

🔋 Battery

Xiaomi Black Shark 4S (128GB/12GB)Samsung Galaxy A51 (SM-A515F/DSN)
Battery typeLiPo: Li-Ion polymer (Non removable)LiPo: Li-Ion polymer (Non removable)
Battery capacity4500 mAh4000 mAh
Charger, watts120W Fast battery charging
Reverse charging USB between devices
15W Fast battery charging
Talk time autonomyfeature not registeredfeature not registered
Standbyfeature not registeredfeature not registered

➕ Other features

Xiaomi Black Shark 4S (128GB/12GB)Samsung Galaxy A51 (SM-A515F/DSN)
Call controlVoice dialing, Voice recorder, Voice commandsVoice dialing, Voice recorder
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: Black, White, Gundam
- Liquid Cooling System
- Physical pop-up gaming triggers
- Colors: Prism, Crush Black, White, Blue, Pink
- One UI 2/3.1
- Always On Display

☢️ Radiation rate

Xiaomi Black Shark 4S (128GB/12GB)Samsung Galaxy A51 (SM-A515F/DSN)
SAR 1.6W/kg (USA, Mexico, etc.)feature not registeredfeature not registered
SAR 2W/kg (Europe, UK, etc.)feature not registered0.369W/kg (head), 1.59W/kg (body)
X

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