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LG K51S (K510EMW) vs Samsung Galaxy A21s (SM-A217F)

Side by side comparison between LG K51S vs Samsung Galaxy A21s phones, differences, pros, cons with full specifications. What's the better?

,
LG K51S (K510EMW)
6.55"
IPS

720x1600

32
MP

13mp

3GB
RAM

64bit Octa

4000
mAh

(Non removable)

vs
12PointsSamsung Galaxy A21s (SM-A217F)Compare LG K51S X
Samsung Galaxy A21s (SM-A217F)
6.5"
PLS

720x1600

48
MP

13mp

3GB
RAM

64bit Octa

5000
mAh

(Non removable)

What's the better phone? Samsung Galaxy A21s (SM-A217F)

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!

K51S (K510EMW)10 Advantages LG K51S (K510EMW)vsGalaxy A21s (SM-A217F)12 Advantages Samsung Galaxy A21s (SM-A217F)
+64GB (47GB available)147%
More internal storage for applications and files
vs32GB (19GB available)
+8.26 millimeters (0.33 inches)8%
Thinner
vs8.9 millimeters (0.35 inches)
+TFT IPS LCDAdvantage
TFT IPS LCD display is brighter and more vivid
vsTFT PLS
+6.55"1%
Larger screen
vs6.5"
+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)
+Ambient Light sensorAdvantage
Sensors help you use the device
vsNot supported
+2 slots (Dual-SIM)
(dedicated slot)Advantage
It's more advantageous to have more than one phone operator in the same device
vs1 slot (Single-SIM)
(dedicated slot)
+DLNAAdvantage
With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.
vsNot supported
+NFCAdvantage
NFC allows you to make payments by approach quickly and securely
vsNot supported
+MIL-STD-810G military certifiedAdvantage
Protection against water allows you talk to your friends in the rain, for example
vsNot supported
2.3Ghz 64bit Octa-Corevs+2Ghz 64bit Octa-Core13%
More powerful processor, you can open your applications faster
3GB LPDDR3vs+3GB LPDDR4XAdvantage
This RAM type is better and more efficient.
194 grams (6.79 ounces)vs+192 grams (6.72 ounces)1%
Lighter
268 PPIvs+270 PPI1%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
(quad camera) 32MP + 5MP + 2MP + 2MPvs+(quad camera) 48MP + 8MP + 2MP + 2MP46%
Higher resolution main camera
Android 9.0 Pievs+Android 10Advantage
Android 10 is newer and safer
Not supportedvs+GyroscopeAdvantage
Sensors help you use the device
Not supportedvs+Face unlockAdvantage
Sensors help you use the device
4000 mAhvs+5000 mAh25%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
10Wvs+15W50%
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.
Not supportedvs+FMAdvantage
The radio lets you listen to your songs and sports in general
802.11 a/b/g/n (2.4Ghz, 5Ghz)vs+802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMOAdvantage
WiFi 802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO is newer and faster

32 Common items in both devices
eMMC 5.1
Until 1TB microSD, microSDXC / Until 512GB microSD, microSDXC
Plastic body, glass front
60Hz
16 million
720x1600 pixels
LED flash
+25 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
Physical featuresLG K51S (K510EMW)Samsung Galaxy A21s (SM-A217F)
ModelK51S (K510EMW)Galaxy A21s (SM-A217F)
Other model namesLG K51s LM-K510EMW, LMK510EMW (Dual-Sim + NFC)Galaxy A21s SM-A217F Single-Sim (32GB + 3GB RAM)
Country or region available(Europe)(Global, International)
(Europe), (Global, International)
South AfricaAustraliaNew Zealand
South Africa, Australia, New Zealand
BrandLGSamsung
Release dateApril, 2020June, 2020
Depth8.26 millimeters (0.33 inches)8.9 millimeters (0.35 inches)
Size (width x height)76.7 x 165.2 millimeters (3.02 x 6.5 in)75.3 x 163.7 millimeters (2.96 x 6.44 in)
Weight194 grams (6.79 ounces)192 grams (6.72 ounces)
Qwerty physical keyboardNot supportedNot supported
AntennaInternal antennaInternal antenna
Build, materialsPlastic body, glass frontPlastic body, glass front
Protection against water and othersMIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant.Not supported
System (OS)LG K51S (K510EMW)Samsung Galaxy A21s (SM-A217F)
Operating systemAndroid 9.0 PieAndroid 10
Firmware updatefeature not registeredfeature not registered
HardwareLG K51S (K510EMW)Samsung Galaxy A21s (SM-A217F)
Chipset64bit - MediaTek MT6765 Helio P35 (12nm)64bit - Samsung Exynos 850 Octa (8nm)
CPU processorOcta-Core, 2 processors:
2.3Ghz Quad-Core ARM Cortex-A53
1.8Ghz Quad-Core ARM Cortex-A53
Octa-Core, 2 processors:
2Ghz Quad-Core ARM Cortex-A55
2Ghz Quad-Core ARM Cortex-A55
GPU graphical controllerPowerVR GE8320 680MhzARM Mali-G52 MP1
RAM memory3GB LPDDR33GB LPDDR4X
Internal storage64GB (47GB available)
eMMC 5.1
32GB (19GB available)
eMMC 5.1
External storageUntil 1TB microSD, microSDXC
(dedicated slot)
Until 512GB microSD, microSDXC
(dedicated slot)
DisplayLG K51S (K510EMW)Samsung Galaxy A21s (SM-A217F)
Display typeTFT IPS LCDTFT PLS
Screen size6.55" inches6.5" inches
Screen-to-body ratio~81.7% (screen-to-body ratio)~82.8% (screen-to-body ratio)
Display resolution720x1600 pixels (20:9)720x1600 pixels (20:9)
TouchscreenCapacitive MultitouchCapacitive Multitouch
Pixel density (dot pitch)268 PPI270 PPI
Colors16 million16 million
Scratch-resistant glassNot supportedNot supported
Display features60Hz, 400 nits60Hz
Mobile networksLG K51S (K510EMW)Samsung Galaxy A21s (SM-A217F)
Dual-SIMDual-SIM Standby - Call active on one sim card
(dedicated slot)
Not supported
SIM card2 slots (Dual-SIM)
nano-SIM (4FF)
1 slot (Single-SIM)
nano-SIM (4FF)
Maximum download/upload300/50 Mbps300/150 Mbps
Network technology2G, 3G, 4G2G, 3G, 4G
Frequency, bandsExpand band detailsCollapse details
GSM Mhz bandQuad-Band 850/900/1800/1900Quad-Band 850/900/1800/1900
Primary 2G networkGSM 850/900/1800/1900GSM 850/900/1800/1900
Primary 3G networkUMTS 850/900/1900/2100UMTS 850/900/1900/2100
Primary 4G networkLTE Cat6 (1, 3, 7, 8, 20)
TD-LTE (38)
LTE Cat7/13 (1, 2, 3, 5, 7, 8, 20, 28)
TD-LTE (38, 40, 41)
Primary 5G networkNot supportedNot supported
Primary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-AGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
Secondary 2G networkGSM 850/900/1800/1900Not supported
Secondary 3G networkNot supportedNot supported
Secondary 4G networkNot supportedNot supported
Secondary data networkGPRS, EDGENot supported
CallingLG K51S (K510EMW)Samsung Galaxy A21s (SM-A217F)
MessagingSMS (T9), MMS, E-mail, Push mailSMS (T9), MMS, E-mail, Push mail
SpeakerphoneSupportedSupported
Video callingSupportedSupported
Call controlVoice dialing, Voice recorder, Voice commandsVoice dialing, Voice recorder, Voice commands
CameraLG K51S (K510EMW)Samsung Galaxy A21s (SM-A217F)
Back camera (main camera)(quad camera)
32 megapixels
5MP ultrawidef/2.216mm1.12μm115º
2MP macrof/2.422mm1.75μm88.6º
2MP depthf/2.41.75μm
(quad camera)
48 megapixels
8MP ultrawidef/2.21/4"1.12µm123º
2MP macrof/2.4
2MP depthf/2.4
Main camera resolution6528x4896 pixels8000x6000 pixels
Video recording (primary)Full HD (1920x1080) 30 fpsFull HD (1920x1080) 30 fps
FlashLED flashLED flash
Focal aperturef/1.8 (aperture)f/2.0 (aperture)
Focal length24mm lens26mm lens
Sensor sizefeature not registered1/2" 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 sensorNot supportedNot supported
HDRHDR photo on both camerasHDR photo on both cameras
2ª cameraLG K51S (K510EMW)Samsung Galaxy A21s (SM-A217F)
Front camera (secondary)13 megapixels13 megapixels
Front camera resolution4128x3096 pixels4128x3096 pixels
Video recording (secondary)Full HD (1920x1080)Full HD (1920x1080)
Front flashNot supportedNot supported
Focal aperturef/2.0 (aperture)f/2.2 (aperture)
Focal lengthfeature not registeredfeature not registered
Sensor sizefeature not registered1/3.1" inches
Pixel sizefeature not registered1.12µm pixel
MultimediaLG K51S (K510EMW)Samsung Galaxy A21s (SM-A217F)
RadioNot supportedFM
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
ConnectivityLG K51S (K510EMW)Samsung Galaxy A21s (SM-A217F)
USBUSB 2.0 Type-C, USB OTG On-The-GoUSB 2.0 Type-C reversible connector
TV outputNot supportedNot supported
Audio output3.5mm jack3.5mm jack
Bluetooth5.0 + A2DP/LE5.0 + A2DP/LE
WiFi802.11 a/b/g/n (2.4Ghz, 5Ghz)802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO
DLNASupportedNot supported
NFCSupportedNot supported
GPSA-GPS, GeoTaggingA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
Infrared portNot supportedNot supported
Other functionsLG K51S (K510EMW)Samsung Galaxy A21s (SM-A217F)
Active noise cancellationSupportedSupported
Vibrating alertSupportedSupported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserHTML, XHTML, HTML5HTML, XHTML, HTML5
SensorsAccelerometer
Proximity sensor
Compass
Ambient Light sensor
Fingerprint sensor (rear-mounted)
Accelerometer
Proximity sensor
Compass
Gyroscope
Face unlock
Fingerprint sensor (rear-mounted)
Other features- Colors: Titanium, Blue, Pink/Red
- Silicone case included
- Google Assistant (dedicated side button)
- DTS:X 3D audio
- WiFi direct, hotspot
- Colors: Black, White, Blue, Red
- One UI 2.0
- WiFi direct, hotspot
Power supplyLG K51S (K510EMW)Samsung Galaxy A21s (SM-A217F)
BatteryLiPo: Li-Ion polymer (Non removable)LiPo: Li-Ion polymer (Non removable)
Battery capacity4000 mAh5000 mAh
Charger, watts10W (5V/2A) Standard charging15W (9V/1.67A) Fast battery charging
Talk time autonomy630 minutes | 10.5 hours | 0.4 dayfeature not registered
Standby22200 minutes | 370 hours | 15.4 daysfeature not registered
Radiation rateLG K51S (K510EMW)Samsung Galaxy A21s (SM-A217F)
SAR 1.6W/kg (USA, Mexico, etc.)feature not registeredfeature not registered
SAR 2W/kg (Europe, UK, etc.)feature not registered0.422W/kg (head) | 1.544W/kg (body)
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