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LG K71 (Q730BAW) vs Samsung Galaxy S21 Ultra (SM-G998U1 512GB)

Side by side comparison between LG K71 vs Samsung Galaxy S21 Ultra phones, differences, pros, cons and full specifications. What's the better?

,
LG K71 (Q730BAW)
6.8"
IPS

1080x2460

48
MP

32mp

4GB
RAM

64bit Octa

4000
mAh

(Non removable)

vs
33PointsSamsung Galaxy S21 Ultra (SM-G998U1 512GB)Compare LG K71 X
Samsung Galaxy S21 Ultra (SM-G998U1 512GB)
6.8"
AMOLED

1440x3200

108
MP

40mp

16GB
RAM

64bit Octa

5000
mAh

(Non removable)

What's the better phone? Samsung Galaxy S21 Ultra (SM-G998U1 512GB)

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!

K71 (Q730BAW)5 Advantages LG K71 (Q730BAW)vsGalaxy S21 Ultra (SM-G998U1 512GB)33 Advantages Samsung Galaxy S21 Ultra (SM-G998U1 512GB)
+Until 1TB microSD, microSDXCAdvantage
More external storage for files using memory cards
vsNot supported
+220 grams (7.7 ounces)3%
Lighter
vs227 grams (7.95 ounces)
+8.7 millimeters (0.34 inches)2%
Thinner
vs8.9 millimeters (0.35 inches)
+3.5mm jackAdvantage
Headsets with 3.5mm Jack size are more common and easy to find in stores
vsType-C reversible connector
+IP68 certified, MIL-STD-810G military certifiedAdvantage
Protection against water allows you talk to your friends in the rain, for example
vsIP68 certified
2.3GHz 64bit Octa-Corevs+2.84GHz 64bit Octa-Core27%
More powerful processor, you can open your applications faster
4GB LPDDR4Xvs+16GB LPDDR53 times
More RAM memory. Typically more responsive and better for multitasking.
128GB (107GB available)vs+512GB (457GB available)3 times
More internal storage for applications and files
eMMC 5.1vs+UFS 3.1Advantage
Fastest write and read storage.
Plastic body, glass frontvs+Aluminum frame, glass front/backAdvantage
More resistant material
TFT IPS LCDvs+Dynamic AMOLEDAdvantage
Dynamic AMOLED display is brighter and more vivid
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.
1080x2460 pixelsvs+1440x3200 pixels73%
Higher resolution screen
395 PPIvs+516 PPI31%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
(triple camera) 48MP + 5MP + 5MPvs+(quad camera) 108MP + 10MP + 10MP + 12MP141%
Higher resolution main camera
Only digital zoomvs+Digital and optical zoomAdvantage
The zoom allows for better focus and approach to take pictures
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
1/2" inchesvs+1/1.33" inches50%
The larger sensor camera lets you take photos with better depth.
(front) 32MPvs+(front) 40MP25%
Higher resolution secondary camera to take pictures and selfies
Full HD (1920x1080)vs+8K UHD (7680x4320)15 times
More image quality for recording videos with the primary camera
(front) Full HD (1920x1080)vs+(front) 4K UHD (3840x2160)3 times
More image quality for recording videos with the secondary camera
Android 10vs+Android 13Advantage
Android 13 is newer and safer
4G+ LTE-Avs+5G NRAdvantage
The 5G NR network is newer and faster
(4G+ LTE-A) 300 Mbpsvs+(5G NR) 5000 Mbps16 times
Faster for surfing the internet and download files
Not supportedvs+ANT+Advantage
Sensors help you use the device
Not supportedvs+BarometerAdvantage
Sensors help you use the device
Not supportedvs+CompassAdvantage
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+25W150%
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+Qi wireless charging (Qi/PMA)Advantage
Wireless charging is another way to charge the battery.
2 slots (Dual-SIM)
(hybrid slot/shares the same microSD 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 (2.4Ghz, 5Ghz) + MIMOvs+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
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+NFCAdvantage
NFC allows you to make payments by approach quickly and securely
USB 2.0 Type-C, USB OTG On-The-Govs+USB 3.2 Type-C, USB OTG On-The-GoAdvantage
Newer and faster USB version for transferring photos, mp3 or data.

23 Common items in both devices
16 million
6.8"
LED flash
PDAF: phase detection autofocus / PDAF: phase detection autofocus on both cameras
HDR photo on both cameras / HDR photo/video on both cameras
f/1.8 (aperture)
Capacitive
+16 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

LG K71 (Q730BAW)Samsung Galaxy S21 Ultra (SM-G998U1 512GB)
ModelK71 (Q730BAW)Galaxy S21 Ultra (SM-G998U1 512GB)
Other model namesLG K71 LMQ730BAW, LM-Q730BAW (Dual-SIM)Galaxy S21 Ultra 5G (SM-G998U1) Unlocked
Country or region availableBrazilColombiaEcuador
Brazil, Colombia, Ecuador
USA
USA
BrandLGSamsung
Release date9/21/20201/29/2021, Announced: 1/14/2021
Depth8.7 millimeters (0.34 inches)8.9 millimeters (0.35 inches)
Size (width x height)77.7 x 171.4 millimeters (3.06 x 6.75 in)75.6 x 165.1 millimeters (2.98 x 6.5 in)
Weight220 grams (7.7 ounces)227 grams (7.95 ounces)
Build, materialsPlastic body, glass frontAluminum frame, glass front/back
Protection against water and othersIP68 certified: dust/waterproof over 1.5 meters and 30min.
MIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant.
IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant

🤖 Operating System

LG K71 (Q730BAW)Samsung Galaxy S21 Ultra (SM-G998U1 512GB)
System versionAndroid 10Android 11
Firmware updatefeature not registeredAndroid 13
User Interfacefeature not registeredOne UI 3.1 / 4.1 / 5.0

⚙️ Processor

LG K71 (Q730BAW)Samsung Galaxy S21 Ultra (SM-G998U1 512GB)
Chipset64bit - MediaTek Helio P35 (MT6765) (12nm)64bit - Qualcomm Snapdragon 888 (SM8350) (5nm)
CPUOcta-Core, 2 processors:
2.3GHz Quad-Core ARM Cortex-A53
1.8GHz Quad-Core ARM Cortex-A53
Octa-Core, 3 processors:
2.84GHz Single-Core Kryo 680
2.42GHz Triple-Core Kryo 680
1.8GHz Quad-Core Kryo 680
GPU graphical controllerPowerVR GE8320 MP2 (680MHz)Qualcomm Adreno 660 (840MHz)
Performance (benchmark)feature not registeredAnTuTu: 681099 (v8), 809165 (v9)
Geekbench: 3539 (v5.2)
GFXBench: 54fps (ES 3.1 onscreen)

💽 Memory and storage

LG K71 (Q730BAW)Samsung Galaxy S21 Ultra (SM-G998U1 512GB)
RAM memory4GB LPDDR4X16GB LPDDR5
Internal storage128GB (107GB available)
eMMC 5.1
512GB (457GB available)
UFS 3.1
External storageUntil 1TB microSD, microSDXC
(hybrid slot/shares the same SIM-2 slot)
Not supported

📲 Display

LG K71 (Q730BAW)Samsung Galaxy S21 Ultra (SM-G998U1 512GB)
Display typeTFT IPS LCDDynamic AMOLED
Screen size6.8" inches6.8" inches
Screen-to-body ratio~82.5% (screen-to-body ratio)~89.4% (screen-to-body ratio)
Display resolution1080x2460 pixels (20.5:9)1440x3200 pixels (20:9)
TouchscreenCapacitive MultitouchCapacitive Multitouch 10-points
Pixel density (dot pitch)395 PPI516 PPI
Colors16 million16 million
Scratch-resistant glassCristal Dinorex (NEG)Gorilla Glass Victus
Refresh rate60Hz120Hz
Display featuresNot supported1500nits[peak]
HDR10+
Always-On Display

📶 Mobile networks

LG K71 (Q730BAW)Samsung Galaxy S21 Ultra (SM-G998U1 512GB)
Dual-SIMDual-SIM Standby - Call active on one sim card
(hybrid slot/shares the same microSD 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/upload300/50 Mbps5000/1920 Mbps
Network technology2G, 3G, 4G2G, 3G, 4G, 5G
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 850/900/1700/1900/2100CDMA2000 1xEV-DO
UMTS 850/900/1700/1900/2100
Primary 4G networkLTE Cat6 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 28, 66)
TD-LTE (38, 40)
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, 5G SA/NSA, 5G NR
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, 5G SA/NSA, 5G NR

📷 Camera

LG K71 (Q730BAW)Samsung Galaxy S21 Ultra (SM-G998U1 512GB)
Back camera (main camera)(triple camera)
48 megapixels
5MP ultrawidef/2.2120°1/5"1.12μm
5MP depthf/2.480.6°1/5"1.12μm
(quad camera)
108 megapixels
10MP periscope telephotof/4.9240mm1/3.24"1.22µmPDAFOIS10x-optical-zoom
10MP telephotof/2.470mm1/3.24"1.22µmPDAFOIS3x-optical-zoom
12MP ultrawidef/2.213mm1/2.55"1.4µmPDAFSuper-Steady-video
Main camera resolution8000x6000 pixels12000x9000 pixels
Video recording (primary)Full HD (1920x1080) 30 fps8K UHD (7680x4320) 24 fps
FlashLED flashLED flash
Focal aperturef/1.8 (aperture)f/1.8 (aperture)
Focal lengthfeature not registered26mm lens
Sensor size1/2" inches1/1.33" inches
Pixel size0.8µm pixel1.8µm pixel
AutofocusPDAF: phase detection autofocusPDAF: phase detection autofocus on both cameras
Touch focusSupportedSupported
Image stabilizationEIS: Digital stabilizationOIS: Optical stabilization
ZoomOnly digital zoomDigital and optical 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@60fps
1080p@240fps
720p@960fps

📸 Front camera

LG K71 (Q730BAW)Samsung Galaxy S21 Ultra (SM-G998U1 512GB)
Front camera (secondary)32 megapixels40 megapixels
Front camera resolution6528x4896 pixels7296x5472 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 size1/2.8" inches1/2.8" inches
Pixel size0.8µm pixel0.7µm pixel

🔉 Sound and multimedia

LG K71 (Q730BAW)Samsung Galaxy S21 Ultra (SM-G998U1 512GB)
LoudspeakerSupportedStereo sound
32-bit/384kHz
Dolby Atmos
Tuned by AKG
Active noise cancellation2 microphones or more2 microphones or more
RadioFMFM
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

LG K71 (Q730BAW)Samsung Galaxy S21 Ultra (SM-G998U1 512GB)
USBUSB 2.0 Type-C, USB OTG On-The-GoUSB 3.2 Type-C, USB OTG On-The-Go
Audio output3.5mm jackType-C reversible connector
TV outputUSB Type-C (reversible)USB Type-C (reversible)
Bluetooth5.0 + A2DP/LE5.2 + A2DP/LE
WiFi802.11 a/b/g/n/ac (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, GeoTaggingA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFCNot supportedSupported
Infrared portNot supportedNot supported

🧭 Sensors

LG K71 (Q730BAW)Samsung Galaxy S21 Ultra (SM-G998U1 512GB)
SensorsAccelerometer
Ambient Light sensor
Face unlock
Fingerprint sensor (rear-mounted)
Gyroscope
Proximity sensor
Accelerometer
Ambient Light sensor
ANT+
Barometer
Compass
Face unlock
Fingerprint sensor (under display)
Gesture
Gyroscope
Hall effect
Proximity sensor
Vibrating alertSupportedSupported

🔋 Battery

LG K71 (Q730BAW)Samsung Galaxy S21 Ultra (SM-G998U1 512GB)
Battery typeLiPo: Li-Ion polymer (Non removable)
BL-T48
LiPo: Li-Ion polymer (Non removable)
Battery capacity4000 mAh5000 mAh
Charger, watts10W Standard charging25W Fast battery charging
15W Qi wireless charging (Qi/PMA)
4.5W Reverse wireless charging between devices
USB Power Delivery 3.0
Talk time autonomy19 hoursfeature not registered
Standby700 hours (29.2 days)feature not registered

➕ Other features

LG K71 (Q730BAW)Samsung Galaxy S21 Ultra (SM-G998U1 512GB)
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: Titan, White
- Stylus Pen
- DTS:X 3D stereo sound
- Google Assistant button
- LG TONE Free is not included
- Colors: Phantom Black, Silver, Titanium, Navy, Brown
- Samsung Pay (Visa, MasterCard)
- Samsung DeX
- Stylus pen support

☢️ Radiation rate

LG K71 (Q730BAW)Samsung Galaxy S21 Ultra (SM-G998U1 512GB)
SAR 1.6W/kg (USA, Mexico, etc.)0.74W/kg (head), 1.12W/kg (body)0.77W/kg (head), 1.02W/kg (body)
SAR 2W/kg (Europe, UK, etc.)feature not registeredfeature not registered
X

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