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Asus Zenfone AR (ZS571KL 128GB) vs LG K51S (K510EMW)

Side by side comparison between Asus Zenfone AR vs LG K51S phones, differences, pros, cons with full specifications. What's the better?

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Compare LG K51S XAsus Zenfone AR (ZS571KL 128GB)19Points
Asus Zenfone AR (ZS571KL 128GB)
5.7"
AMOLED

1440x2560

23
MP

8mp

6GB
RAM

64bit Quad

3300
mAh

(Non removable)

vs
LG K51S (K510EMW)
6.55"
IPS

720x1600

32
MP

13mp

3GB
RAM

64bit Octa

4000
mAh

(Non removable)

What's the better phone? Asus Zenfone AR (ZS571KL 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!

Zenfone AR (ZS571KL 128GB)19 Advantages Asus Zenfone AR (ZS571KL 128GB)vsK51S (K510EMW)12 Advantages LG K51S (K510EMW)
+6GB LPDDR4100%
More RAM memory. Typically more responsive and better for multitasking.
vs3GB LPDDR3
+128GB (110GB available)134%
More internal storage for applications and files
vs64GB (47GB available)
+UFS 2.0Advantage
Fastest write and read storage.
vseMMC 5.1
+170 grams (5.95 ounces)14%
Lighter
vs194 grams (6.79 ounces)
+Aluminum body, glass front, plastic backAdvantage
More resistant material
vsPlastic body, glass front
+Super AMOLEDAdvantage
Super AMOLED display is brighter and more vivid
vsTFT IPS LCD
+1440x2560 pixels2 times
Higher resolution screen
vs720x1600 pixels
+515 PPI92%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
vs268 PPI
+Dual-LED flashAdvantage
The Dual-LED flash helps in dark places or in low light
vsLED flash
+OIS (4-axis): Optical stabilizationAdvantage
Image stabilization prevents blurry photos and helps in recording motion video
vsEIS: Digital stabilization
+4K UHD (3840x2160)3 times
More image quality for recording videos with the primary camera
vsFull HD (1920x1080)
+(4G+ LTE-A) 600 Mbps100%
Faster for surfing the internet and download files
vs(4G+ LTE-A) 300 Mbps
+GyroscopeAdvantage
Sensors help you use the device
vsNot supported
+BarometerAdvantage
Sensors help you use the device
vsNot supported
+Face unlockAdvantage
Sensors help you use the device
vsNot supported
+18W80%
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
+FMAdvantage
The radio lets you listen to your songs and sports in general
vsNot supported
+802.11 a/b/g/n/ac (2.4Ghz, 5Ghz)Advantage
WiFi 802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) is newer and faster
vs802.11 a/b/g/n (2.4Ghz, 5Ghz)
+Gorilla Glass 4Advantage
Protection against scratches on the screen lets you carry your phone with your keys
vsNot supported
2.35Ghz 64bit Quad-Corevs+2.3Ghz 64bit Octa-Core34%
More powerful processor, you can open your applications faster
8.9 millimeters (0.35 inches)vs+8.26 millimeters (0.33 inches)8%
Thinner
5.7"vs+6.55"15%
Larger screen
(back) 23MPvs+(quad camera) 32MP + 5MP + 2MP + 2MP78%
Higher resolution main camera
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.
(front) 8MPvs+(front) 13MP60%
Higher resolution secondary camera to take pictures and selfies
Android 7.0 Nougatvs+Android 9.0 PieAdvantage
Android 9.0 Pie is newer and safer
3300 mAhvs+4000 mAh21%
Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
Not supportedvs+DLNAAdvantage
With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.
4.2 + A2DPvs+5.0 + A2DP/LEAdvantage
Bluetooth 5.0 + A2DP/LE is newer and faster
Not supportedvs+NFCAdvantage
NFC allows you to make payments by approach quickly and securely
Not supportedvs+MIL-STD-810G military certifiedAdvantage
Protection against water allows you talk to your friends in the rain, for example

24 Common items in both devices
Until 1TB microSD, microSDXC
16 million
Only digital zoom
PDAF: phase detection autofocus
HDR photo on both cameras
(front) Full HD (1920x1080)
4G+ LTE-A
+17 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 featuresAsus Zenfone AR (ZS571KL 128GB)LG K51S (K510EMW)
ModelZenfone AR (ZS571KL 128GB)K51S (K510EMW)
Other model namesAsus Zenfone AR ZS571KL (128GB + 6GB RAM) A002A, A002LG K51s LM-K510EMW, LMK510EMW (Dual-Sim + NFC)
Country or region available(Global, International)
(Global, International)
(Europe)(Global, International)
(Europe), (Global, International)
BrandAsusLG
Release dateMay, 2017April, 2020
Depth8.9 millimeters (0.35 inches)8.26 millimeters (0.33 inches)
Size (width x height)77.4 x 158.7 millimeters (3.05 x 6.25 in)76.7 x 165.2 millimeters (3.02 x 6.5 in)
Weight170 grams (5.95 ounces)194 grams (6.79 ounces)
Qwerty physical keyboardNot supportedNot supported
AntennaInternal antennaInternal antenna
Build, materialsAluminum body, glass front, plastic backPlastic 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)Asus Zenfone AR (ZS571KL 128GB)LG K51S (K510EMW)
Operating systemAndroid 7.0 NougatAndroid 9.0 Pie
Firmware updatefeature not registeredfeature not registered
HardwareAsus Zenfone AR (ZS571KL 128GB)LG K51S (K510EMW)
Chipset64bit - Qualcomm Snapdragon 821 MSM8996 (14nm)64bit - MediaTek MT6765 Helio P35 (12nm)
CPU processorQuad-Core, 2 processors:
2.35Ghz Dual-Core Kryo
1.6Ghz Dual-Core Kryo
Octa-Core, 2 processors:
2.3Ghz Quad-Core ARM Cortex-A53
1.8Ghz Quad-Core ARM Cortex-A53
GPU graphical controllerQualcomm Adreno 530 650MhzPowerVR GE8320 680Mhz
RAM memory6GB LPDDR43GB LPDDR3
Internal storage128GB (110GB available)
UFS 2.0
64GB (47GB available)
eMMC 5.1
External storageUntil 1TB microSD, microSDXC
(dedicated slot)
Until 1TB microSD, microSDXC
(dedicated slot)
DisplayAsus Zenfone AR (ZS571KL 128GB)LG K51S (K510EMW)
Display typeSuper AMOLEDTFT IPS LCD
Screen size5.7" inches6.55" inches
Screen-to-body ratio~72.9% (screen-to-body ratio)~81.7% (screen-to-body ratio)
Display resolution1440x2560 pixels720x1600 pixels (20:9)
TouchscreenCapacitive Multitouch 10-pointsCapacitive Multitouch
Pixel density (dot pitch)515 PPI268 PPI
Colors16 million16 million
Scratch-resistant glassGorilla Glass 4Not supported
Display featuresfeature not registered60Hz, 400 nits
Mobile networksAsus Zenfone AR (ZS571KL 128GB)LG K51S (K510EMW)
Dual-SIMDual-SIM Standby - Call active on one sim card
(dedicated slot)
Dual-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/upload600/75 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 850/900/1800/1900GSM 850/900/1800/1900
Primary 3G networkGlobal version:
UMTS 800/850/900/1900/2100

America version:
UMTS 850/900/1700/1900/2100
UMTS 850/900/1900/2100
Primary 4G networkLTE Cat12
VoLTE

Global version:
LTE (Bands 1, 2, 3, 5, 7, 8, 18, 19, 20, 26, 28)
TD-LTE (Bands 38, 40, 41)

America version:
LTE (Bands 1, 2, 3, 4, 5, 7, 12, 13, 20, 29)
LTE Cat6 (1, 3, 7, 8, 20)
TD-LTE (38)
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 850/900/1800/1900GSM 850/900/1800/1900
Secondary 3G networkNot supportedNot supported
Secondary 4G networkNot supportedNot supported
Secondary data networkGPRS, EDGEGPRS, EDGE
CallingAsus Zenfone AR (ZS571KL 128GB)LG K51S (K510EMW)
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
CameraAsus Zenfone AR (ZS571KL 128GB)LG K51S (K510EMW)
Back camera (main camera)(triple camera)
23 megapixels
?MP depth
?MP motion tracking sensors
(quad camera)
32 megapixels
5MP ultrawidef/2.216mm1.12μm115º
2MP macrof/2.422mm1.75μm88.6º
2MP depthf/2.41.75μm
Main camera resolution5536x4152 pixels6528x4896 pixels
Video recording (primary)4K UHD (3840x2160) 30 fpsFull HD (1920x1080) 30 fps
FlashDual-LED flashLED flash
Focal aperturef/2.0 (aperture)f/1.8 (aperture)
Focal length27mm lens24mm lens
Sensor size1/2.6" inchesfeature not registered
Pixel size1µm pixel0.8µm pixel
AutofocusPDAF: phase detection autofocusPDAF: phase detection autofocus
Touch focusSupportedSupported
Image stabilizationOIS (4-axis): Optical 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 cameraAsus Zenfone AR (ZS571KL 128GB)LG K51S (K510EMW)
Front camera (secondary)8 megapixels13 megapixels
Front camera resolution3264x2448 pixels4128x3096 pixels
Video recording (secondary)Full HD (1920x1080)Full HD (1920x1080)
Front flashNot supportedNot supported
Focal aperturef/2.0 (aperture)f/2.0 (aperture)
Focal lengthfeature not registeredfeature not registered
Sensor size1/4" inchesfeature not registered
Pixel size1.12µm pixelfeature not registered
MultimediaAsus Zenfone AR (ZS571KL 128GB)LG K51S (K510EMW)
RadioFMNot supported
TVNot supportedNot supported
Video formatsMP4, H.264, H.263, XviD, MKVMP4, H.265, H.264, H.263, XviD, MKV
Audio formatsMP3, WAV, WMA, eAAC+, FLACMP3, WAV, WMA, eAAC+, FLAC
ConnectivityAsus Zenfone AR (ZS571KL 128GB)LG K51S (K510EMW)
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
Bluetooth4.2 + A2DP5.0 + A2DP/LE
WiFi802.11 a/b/g/n/ac (2.4Ghz, 5Ghz)802.11 a/b/g/n (2.4Ghz, 5Ghz)
DLNANot supportedSupported
NFCNot supportedSupported
GPSA-GPS, GeoTagging, GLONASS, BeiDouA-GPS, GeoTagging
Infrared portNot supportedNot supported
Other functionsAsus Zenfone AR (ZS571KL 128GB)LG K51S (K510EMW)
Active noise cancellationSupportedSupported
Vibrating alertSupportedSupported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserHTML, XHTML, HTML5HTML, XHTML, HTML5
SensorsAccelerometer
Proximity sensor
Compass
Ambient Light sensor
Gyroscope
Barometer
Hall effect
Face unlock
Fingerprint sensor (front-mounted)
Accelerometer
Proximity sensor
Compass
Ambient Light sensor
Fingerprint sensor (rear-mounted)
Other features- Colors: Black
- 16:9 display
- ASUS ZenUI 3.0
- Tango and Daydream by Google
- NXP Smart Amp sound
- Hi-Res audio 192KHz
- Quick Charge 3.0
- WiFi direct, hotspot
- Colors: Titanium, Blue, Pink/Red
- Silicone case included
- Google Assistant (dedicated side button)
- DTS:X 3D audio
- WiFi direct, hotspot
Power supplyAsus Zenfone AR (ZS571KL 128GB)LG K51S (K510EMW)
BatteryLi-Ion: Lithium-Ion (Non removable)LiPo: Li-Ion polymer (Non removable)
Battery capacity3300 mAh4000 mAh
Charger, watts18W (9V/2A) Fast battery charging10W (5V/2A) Standard charging
Talk time autonomyfeature not registered630 minutes | 10.5 hours | 0.4 day
Standbyfeature not registered22200 minutes | 370 hours | 15.4 days
Radiation rateAsus Zenfone AR (ZS571KL 128GB)LG K51S (K510EMW)
SAR 1.6W/kg (USA, Mexico, etc.)feature not registeredfeature not registered
SAR 2W/kg (Europe, UK, etc.)feature not registeredfeature not registered
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