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Samsung Galaxy A31 (SM-A315F/DS 128GB) vs LG K51 (K500UM3)

Side by side comparison between Samsung Galaxy A31 vs LG K51 phones, differences, pros, cons with full specifications. What's the better?

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Compare LG K51 XSamsung Galaxy A31 (SM-A315F/DS 128GB)17Points
Samsung Galaxy A31 (SM-A315F/DS 128GB)
6.4"
AMOLED

1080x2400

48
MP

20mp

4GB
RAM

64bit Octa

5000
mAh

(Non removable)

vs
LG K51 (K500UM3)
6.5"
IPS

720x1560

13
MP

13mp

3GB
RAM

64bit Octa

4000
mAh

(Non removable)

What's the better phone? Samsung Galaxy A31 (SM-A315F/DS 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 A31 (SM-A315F/DS 128GB)17 Advantages Samsung Galaxy A31 (SM-A315F/DS 128GB)vsK51 (K500UM3)7 Advantages LG K51 (K500UM3)
+2Ghz 64bit Octa-Core1%
More powerful processor, you can open your applications faster
vs2Ghz 64bit Octa-Core
+4GB LPDDR4X33%
More RAM memory. Typically more responsive and better for multitasking.
vs3GB LPDDR3
+128GB (104GB available)6 times
More internal storage for applications and files
vs32GB (16GB available)
+185 grams (6.48 ounces)10%
Lighter
vs204 grams (7.14 ounces)
+Super AMOLEDAdvantage
Super AMOLED display is brighter and more vivid
vsTFT IPS LCD
+1080x2400 pixels131%
Higher resolution screen
vs720x1560 pixels
+411 PPI56%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
vs264 PPI
+(quad camera) 48MP + 8MP + 5MP + 5MP2 times
Higher resolution main camera
vs(triple camera) 13MP + 5MP + 2MP
+1/2" inches50%
The larger sensor camera lets you take photos with better depth.
vs1/3" inches
+(front) 20MP56%
Higher resolution secondary camera to take pictures and selfies
vs(front) 13MP
+Android 10Advantage
Android 10 is newer and safer
vsAndroid 9.0 Pie
+Face unlockAdvantage
Sensors help you use the device
vsNot supported
+5000 mAh25%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
vs4000 mAh
+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.
vs10W
+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)
+FMAdvantage
The radio lets you listen to your songs and sports in general
vsNot supported
+NFCAdvantage
NFC allows you to make payments by approach quickly and securely
vsNot supported
8.6 millimeters (0.34 inches)vs+8.47 millimeters (0.33 inches)2%
Thinner
6.4"vs+6.5"2%
Larger screen
f/2.0 (aperture)vs+f/1.8 (aperture)11%
Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
(4G LTE) 150 Mbpsvs+(4G+ LTE-A) 300 Mbps100%
Faster for surfing the internet and download files
Not supportedvs+Proximity sensorAdvantage
Sensors help you use the device
Not supportedvs+Panda King GlassAdvantage
Protection against scratches on the screen lets you carry your phone with your keys
Not supportedvs+MIL-STD-810G military certifiedAdvantage
Protection against water allows you talk to your friends in the rain, for example

31 Common items in both devices
eMMC 5.1
Until 1TB microSD, microSDXC
Plastic body, glass front
60Hz
16 million
LED flash
Only digital zoom
+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
Physical featuresSamsung Galaxy A31 (SM-A315F/DS 128GB)LG K51 (K500UM3)
ModelGalaxy A31 (SM-A315F/DS 128GB)K51 (K500UM3)
Other model namesGalaxy A31 SM-A315F/Dual-Sim NFC (128GB + 4GB RAM)LG K51 (Boost Mobile) LMK500UM3ABMUTN, LM-K500UM3
Country or region available(Global, International)
(Global, International)
USA
USA
BrandSamsungLG
Release dateApril, 2020February, 2020
Depth8.6 millimeters (0.34 inches)8.47 millimeters (0.33 inches)
Size (width x height)73.1 x 159.3 millimeters (2.88 x 6.27 in)77.92 x 166.96 millimeters (3.07 x 6.57 in)
Weight185 grams (6.48 ounces)204 grams (7.14 ounces)
Qwerty physical keyboardNot supportedNot supported
AntennaInternal antennaInternal antenna
Build, materialsPlastic body, glass frontPlastic body, glass front
Protection against water and othersNot supportedMIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant.
System (OS)Samsung Galaxy A31 (SM-A315F/DS 128GB)LG K51 (K500UM3)
Operating systemAndroid 10Android 9.0 Pie
Firmware updatefeature not registeredfeature not registered
HardwareSamsung Galaxy A31 (SM-A315F/DS 128GB)LG K51 (K500UM3)
Chipset64bit - MediaTek MT6768 Helio P65 (12nm)64bit - MediaTek MT6762 Helio P22 (12nm)
CPU processorOcta-Core, 2 processors:
2Ghz Dual-Core ARM Cortex-A75
1.7Ghz Hexa-Core ARM Cortex-A55
Octa-Core, 2 processors:
2Ghz Quad-Core ARM Cortex-A53
1.5Ghz Quad-Core ARM Cortex-A53
GPU graphical controllerARM Mali-G52 MC2 820MhzPowerVR GE8320 650Mhz
RAM memory4GB LPDDR4X3GB LPDDR3
Internal storage128GB (104GB available)
eMMC 5.1
32GB (16GB available)
eMMC 5.1
External storageUntil 1TB microSD, microSDXC
(dedicated slot)
Until 1TB microSD, microSDXC
(dedicated slot)
DisplaySamsung Galaxy A31 (SM-A315F/DS 128GB)LG K51 (K500UM3)
Display typeSuper AMOLEDTFT IPS LCD
Screen size6.4" inches6.5" inches
Screen-to-body ratio~84.9% (screen-to-body ratio)~79.7% (screen-to-body ratio)
Display resolution1080x2400 pixels (20:9)720x1560 pixels (19.5:9)
TouchscreenCapacitive MultitouchCapacitive Multitouch
Pixel density (dot pitch)411 PPI264 PPI
Colors16 million16 million
Scratch-resistant glassNot supportedPanda King Glass
Display features60Hz60Hz
Mobile networksSamsung Galaxy A31 (SM-A315F/DS 128GB)LG K51 (K500UM3)
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/upload150/50 Mbps300/50 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 850/900/1800/1900CDMA 800/1900, GSM 850/900/1800/1900
Primary 3G networkUMTS 850/900/1900/2100CDMA2000 1xEV-DO
UMTS 850/900/1700/1900/2100
Primary 4G networkLTE Cat4 (Bands 1, 2, 3, 5, 7, 8, 20)
TD-LTE (Bands 38, 40, 41)
LTE Cat6 (2, 4, 5, 12, 13, 25, 26, 66, 71)
TD-LTE (41)
Primary 5G networkNot supportedNot supported
Primary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTEGPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, 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
CallingSamsung Galaxy A31 (SM-A315F/DS 128GB)LG K51 (K500UM3)
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
CameraSamsung Galaxy A31 (SM-A315F/DS 128GB)LG K51 (K500UM3)
Back camera (main camera)(quad camera)
48 megapixels
8MP ultrawidef/2.213mm1/4.0"1.12µm
5MP macrof/2.4
5MP depthf/2.4
(triple camera)
13 megapixels
5MP ultrawidef/2.21.12μm1/5"115º
2MP depthf/2.41.75μm1/5"85º
Main camera resolution8000x6000 pixels4128x3096 pixels
Video recording (primary)Full HD (1920x1080) 30 fpsFull HD (1920x1080) 30 fps
FlashLED flashLED flash
Focal aperturef/2.0 (aperture)f/1.8 (aperture)
Focal length26mm lens26mm lens
Sensor size1/2" inches1/3" inches
Pixel size0.8µm pixel1.12µm 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 cameraSamsung Galaxy A31 (SM-A315F/DS 128GB)LG K51 (K500UM3)
Front camera (secondary)20 megapixels13 megapixels
Front camera resolution5184x3840 pixels4128x3096 pixels
Video recording (secondary)Full HD (1920x1080)Full HD (1920x1080)
Front flashNot supportedNot supported
Focal aperturef/2.2 (aperture)f/2.0 (aperture)
Focal lengthfeature not registeredfeature not registered
Sensor sizefeature not registered1/3" inches
Pixel sizefeature not registered1.12µm pixel
MultimediaSamsung Galaxy A31 (SM-A315F/DS 128GB)LG K51 (K500UM3)
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
ConnectivitySamsung Galaxy A31 (SM-A315F/DS 128GB)LG K51 (K500UM3)
USBUSB 2.0 Type-C, USB OTG On-The-GoUSB 2.0 Type-C, USB OTG On-The-Go
TV outputNot supportedNot supported
Audio output3.5mm jack3.5mm jack
Bluetooth5.0 + A2DP/LE5.0 + A2DP/LE
WiFi802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO
DLNANot supportedNot supported
NFCSupportedNot supported
GPSA-GPS, GeoTagging, GLONASS, GALILEO, BeiDouA-GPS, GeoTagging, GLONASS
Infrared portNot supportedNot supported
Other functionsSamsung Galaxy A31 (SM-A315F/DS 128GB)LG K51 (K500UM3)
Active noise cancellationSupportedSupported
Vibrating alertSupportedSupported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserHTML, XHTML, HTML5HTML, XHTML, HTML5
SensorsAccelerometer
Compass
Ambient Light sensor
Gyroscope
Face unlock
Fingerprint sensor (under display)
Accelerometer
Proximity sensor
Compass
Ambient Light sensor
Gyroscope
Fingerprint sensor (rear-mounted)
Other features- Colors: Prism Black, Prism Blue, Prism Red, Prism White
- One UI 2.0
- WiFi direct, hotspot
- Colors: Titan gray
- Google Assistant
- DTS:X 3D sound surround
- HAC M3/T3
- WiFi direct, hotspot
Power supplySamsung Galaxy A31 (SM-A315F/DS 128GB)LG K51 (K500UM3)
BatteryLiPo: Li-Ion polymer (Non removable)LiPo: Li-Ion polymer (Non removable)
Battery capacity5000 mAh4000 mAh
Charger, watts15W Fast battery charging10W (5V/2A) Standard charging
Talk time autonomyfeature not registered1260 minutes | 21 hours | 0.9 day
Standbyfeature not registered34560 minutes | 576 hours | 24 days
Radiation rateSamsung Galaxy A31 (SM-A315F/DS 128GB)LG K51 (K500UM3)
SAR 1.6W/kg (USA, Mexico, etc.)feature not registeredfeature not registered
SAR 2W/kg (Europe, UK, etc.)0.488W/kg (head) | 1.68W/kg (body)feature not registered
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