LG G3 (D855 16GB) vs Samsung Galaxy A21 (SM-A215U)

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Side by side comparison between LG G3 vs Samsung Galaxy A21 phones, differences, pros, cons and full specifications. What's the better?

9/27/2020 11:44 PM, updated: 9/13/2021 10:47 AM

Compare Samsung Galaxy A21 X LG G3 (D855 16GB) 13Points

Specifications Compare Models Pictures

5.5"
IPS+

1440x2392

13
MP

2.1mp

2GB
RAM

Quad-core

3000
mAh

(Removable)

16Points Samsung Galaxy A21 (SM-A215U) Compare LG G3 X

Specifications Compare Models Pictures

6.5"
PLS

720x1600

16
MP

13mp

3GB
RAM

Octa-core

4000
mAh

(Non removable)

What's the better phone? Samsung Galaxy A21 (SM-A215U)

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!

13 Advantages LG G3 (D855 16GB)	vs	16 Advantages Samsung Galaxy A21 (SM-A215U)
+149 grams (5.22 ounces)30% Lighter	vs	193 grams (6.76 ounces)
+TFT Super IPS+Advantage TFT Super IPS+ display is brighter and more vivid	vs	TFT PLS
+1440x2392 pixels199% Higher resolution screen	vs	720x1600 pixels
+508 PPI88% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	270 PPI
+Dual-LED flashAdvantage The Dual-LED flash helps in dark places or in low light	vs	LED flash
+OIS: Optical stabilizationAdvantage Image stabilization prevents blurry photos and helps in recording motion video	vs	EIS: Digital stabilization
+BSI sensorAdvantage The BSI sensor allows the entry of more light generating photos with more detail and brightness	vs	Not supported
+1/3" inches2% The larger sensor camera lets you take photos with better depth.	vs	1/3.06" inches
+4K UHD (3840x2160)3 times More image quality for recording videos with the primary camera	vs	Full HD (1920x1080)
+Li-Ion: lithium-ion (Removable)Advantage Removable battery can be replaced easily	vs	LiPo: li-ion polymer (Non removable)
+DLNAAdvantage With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.	vs	Not supported
+NFCAdvantage NFC allows you to make payments by approach quickly and securely	vs	Not supported
+Gorilla Glass 3Advantage Protection against scratches on the screen lets you carry your phone with your keys	vs	Not supported
2.5GHz 32bit Quad-core	vs	+2.3GHz 64bit Octa-core (12nm)29% More powerful processor, you can open your applications faster
2GB LPDDR3	vs	+3GB LPDDR350% More RAM memory. Typically more responsive and better for multitasking.
16GB (10GB available)	vs	+32GB (20GB available)100% More internal storage for applications and files
Until 128GB microSD, microSDXC	vs	+Until 512GB microSD, microSDXC3 times More external storage for files using memory cards
8.9 millimeters (0.35 inches)	vs	+8.1 millimeters (0.32 inches)10% Thinner
5.5"	vs	+6.5"18% Larger screen
(back) 13MP	vs	+(quad camera) 16MP + 8MP + 2MP + 2MP115% Higher resolution main camera
HDR photo/video only main camera	vs	+HDR photo on both camerasAdvantage The HDR technology produced photos with more detail in dark areas
f/2.4 (aperture)	vs	+f/1.8 (aperture)33% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
(front) 2.1MP	vs	+(front) 13MP5 times Higher resolution secondary camera to take pictures and selfies
Android 5.0 Lollipop	vs	+Android 10Advantage Android 10 is newer and safer
Not supported	vs	+Face unlock 2DAdvantage Sensors help you use the device
Not supported	vs	+Fingerprint sensor (rear-mounted)Advantage Sensors help you use the device
3000 mAh	vs	+4000 mAh33% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
4.0 + A2DP	vs	+5.0 + A2DP/LEAdvantage Bluetooth 5.0 + A2DP/LE is newer and faster
MicroUSB 2.0	vs	+Type-CAdvantage Reversible connector, you can stick in a USB-C cable any which way; either side is up.

23 Common items in both devices

16 million

Only digital zoom

LDAF/PDAF: laser/phase detection autofocus / PDAF: phase detection autofocus

(front) Full HD (1920x1080)

4G LTE

150 Mbps

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 differences

📱 Model features
	LG G3 (D855 16GB)	Galaxy A21 (SM-A215U)
Change model		Choose the model
Model	LG G3 (D855 16GB)	Galaxy A21 (SM-A215U)
Other model names	LG G3 4G LTE D855 for Europe, LG Optimus G3, LG B2	Galaxy A21 SM-A215U (Sprint, T-Mobile, US Cellular, Verizon)
Country or region available	(Europe), (Global, International), South Africa, Australia, Brazil, Philippines, Hong Kong, India, Panama, Sri Lanka	USA
Brand	LG	Samsung
Release date	6/1/2014	6/26/2020
Depth	8.9 millimeters (0.35 inches)	8.1 millimeters (0.32 inches)
Size (width x height)	74.6 x 146.3 millimeters (2.94 x 5.76 in)	76.7 x 167.8 millimeters (3.02 x 6.61 in)
Weight	149 grams (5.22 ounces)	193 grams (6.76 ounces)
Build, materials	feature not registered	Plastic body, glass front
Protection against water and others	Not supported	Not supported
📲 Display
	LG G3 (D855 16GB)	Galaxy A21 (SM-A215U)
Display type	TFT Super IPS+	TFT PLS
Screen size	5.5" inches	6.5" inches
Screen-to-body ratio	~79% (screen-to-body ratio)	~79.3% (screen-to-body ratio)
Display resolution	1440x2392 pixels	720x1600 pixels (20:9)
Touchscreen	Capacitive Multitouch 10-points	Capacitive Multitouch
Pixel density (dot pitch)	508 PPI	270 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 3	Not supported
Refresh rate	feature not registered	60Hz
Display features	feature not registered	Not supported
🤖 Operating System
	LG G3 (D855 16GB)	Galaxy A21 (SM-A215U)
System version	Android 4.4.2 KitKat	Android 10
Firmware update	Android 5.0 Lollipop	feature not registered
User Interface	feature not registered	feature not registered
⚙️ Processor
	LG G3 (D855 16GB)	Galaxy A21 (SM-A215U)
Chipset	32bit: Qualcomm Snapdragon 801 MSM8974-AC (28nm)	64bit: MediaTek Helio P35 (MT6765) (12nm)
CPU	Quad-core, 1 processor: 4x 2.5GHz Krait 400 (Quad-core)	Octa-core, 2 processors: 4x 2.3GHz ARM Cortex-A53 (Quad-core) 4x 1.8GHz ARM Cortex-A53 (Quad-core)
GPU graphical controller	Qualcomm Adreno 330 578Mhz	PowerVR GE8320 MP2 (680MHz)
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	LG G3 (D855 16GB)	Galaxy A21 (SM-A215U)
RAM memory	2GB LPDDR3	3GB LPDDR3
Internal storage	16GB (10GB available)	32GB (20GB available) eMMC 5.1
External storage	Until 128GB microSD, microSDXC (dedicated slot)	Until 512GB microSD, microSDXC (dedicated slot)
📶 Mobile networks
	LG G3 (D855 16GB)	Galaxy A21 (SM-A215U)
Dual-SIM	Not supported	Not supported
SIM card	1 slot (Single-SIM) micro-SIM (3FF)	1 slot (Single-SIM) nano-SIM (4FF)
Maximum Download / Upload	150/50 Mbps	150/50 Mbps
Network technology	2G, 3G, 4G	2G, 3G, 4G
Frequency, bands	Expand band details Collapse details
GSM MHz band	Quad-Band 850/900/1800/1900	Quad-Band 850/900/1800/1900
Primary 2G network	GSM 850/900/1800/1900	CDMA 800/1900, GSM 850/900/1800/1900
Primary 3G network	UMTS 850/900/1900/2100	CDMA2000 1xEV-DO UMTS 850/900/1700/1900/2100
Primary 4G network	LTE Cat4 800/900/1800/2100/2600	LTE Cat4 (1, 2, 3, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41) VoLTE
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE
Secondary 2G network	Not supported	Not supported
Secondary 3G network	Not supported	Not supported
Secondary 4G network	Not supported	Not supported
Secondary data network	Not supported	Not supported
📷 Camera
	LG G3 (D855 16GB)	Galaxy A21 (SM-A215U)
Back camera (main camera)	13 megapixels	(quad camera) 16 megapixels 8MP ultrawide f/2.21/4.0"1.12µm 2MP macro f/2.4 2MP depth f/2.4
Main camera resolution	4160x3120 pixels	4608x3456 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	Full HD (1920x1080) 30 fps
Flash	Dual-LED flash	LED flash
Focal aperture	f/2.4 (aperture)	f/1.8 (aperture)
Focal length	29mm (lens)	feature not registered
Sensor size	1/3" inches	1/3.06" inches
Pixel size	1.12µm pixel	1µm pixel
Autofocus	LDAF/PDAF: laser/phase detection autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	OIS: Optical stabilization	EIS: Digital stabilization
Zoom	Only digital zoom	Only digital zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Supported	Not supported
HDR	HDR photo/video only main camera	HDR photo on both cameras
Camera extras	feature not registered	feature not registered
📸 Front camera
	LG G3 (D855 16GB)	Galaxy A21 (SM-A215U)
Front camera (secondary)	2.1 megapixels	13 megapixels
Front camera resolution	1920x1080 pixels	4128x3096 pixels
Video recording (secondary)	Full HD (1920x1080)	Full HD (1920x1080)
Front flash	Not supported	Not supported
Focal aperture	f/2.0 (aperture)	f/2.0 (aperture)
Focal length	feature not registered	feature not registered
Sensor size	feature not registered	feature not registered
Pixel size	feature not registered	1.12µm pixel
🔉 Sound and multimedia
	LG G3 (D855 16GB)	Galaxy A21 (SM-A215U)
Loudspeaker	Supported	Supported
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	FM (RDS)	FM
TV	Not supported	Not supported
Video formats	MP4, H.264, H.263, DivX, XviD, WMV	MP4, H.265, H.264, H.263, XviD, MKV
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	LG G3 (D855 16GB)	Galaxy A21 (SM-A215U)
USB	MicroUSB 2.0	USB 2.0 Type-C reversible connector
Audio output	3.5mm jack	3.5mm jack
TV output	Micro-B USB SlimPort	Not supported
Bluetooth	4.0 + A2DP	5.0 + A2DP/LE
WiFi	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot
DLNA	Supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS	A-GPS, GeoTagging, GLONASS
NFC	Supported	Not supported
Infrared port	Supported	Not supported
🧭 Sensors
	LG G3 (D855 16GB)	Galaxy A21 (SM-A215U)
Sensors	Accelerometer Ambient light sensor Compass Gyroscope Proximity sensor	Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	LG G3 (D855 16GB)	Galaxy A21 (SM-A215U)
Battery type	Li-Ion: lithium-ion (Removable) BL-53YH	LiPo: li-ion polymer (Non removable)
Battery capacity	3000 mAh	4000 mAh
Charger, watts	Wired charging	15W Wired fast charging
Inductive / wireless charging	feature not registered	Not supported
Talk time autonomy	20 hours	feature not registered
Standby	500 hours (20.8 days)	feature not registered
➕ Other features
	LG G3 (D855 16GB)	Galaxy A21 (SM-A215U)
Call control	Voice dialing, Voice recorder, Voice commands	Voice dialing, Voice recorder, Voice commands
Messaging	SMS (T9), MMS, E-mail, Push mail	SMS (T9), MMS, E-mail, Push mail
Hands-free calling	Supported	Supported
Video calling	Supported	Supported
Ringtones	Polyphonic and customized	Polyphonic and customized
Web browser	HTML, XHTML, HTML5	HTML, XHTML, HTML5
Antenna	Internal antenna	Internal antenna
Qwerty physical keyboard	Not supported	Not supported
Miscellaneous	• Colors: Black, White, Gold, Violet, Red • USB OTG On-The-Go 1.3 • Notification LED • Dolby mobile sound • 1W Speaker with Boost AMP • Knock Code, Quick Memo, QRemote • Plastic body • MiraCast • Wireless Charging	• Colors: Black • One UI 2.0
☢️ Radiation rate
	LG G3 (D855 16GB)	Galaxy A21 (SM-A215U)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	0.6W/kg (head), 1.27W/kg (body)
SAR 2W/kg (Europe, UK, etc.)	feature not registered	feature not registered