Samsung Galaxy S21 Ultra (SM-G998B 256GB) vs LG G5 (H850)

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Side by side comparison between Samsung Galaxy S21 Ultra vs LG G5 phones, differences, pros, cons and full specifications. What's the better?

11/14/2021 4:16 PM, updated: 5/19/2025 11:26 AM

Compare LG G5 X Samsung Galaxy S21 Ultra (SM-G998B 256GB) 25Points

Specifications Compare Models Pictures

6.8"
AMOLED

1440x3200

108
MP

40mp

12GB
RAM

Octa-core

5000
mAh

(Non removable)

06Points LG G5 (H850) Compare Samsung Galaxy S21 Ultra X

Specifications Compare Models Pictures

5.3"
IPS

1440x2560

16
MP

8mp

4GB
RAM

Quad-core

2800
mAh

(Removable)

What's the better phone? Samsung Galaxy S21 Ultra (SM-G998B 256GB)

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!

25 Advantages Samsung Galaxy S21 Ultra (SM-G998B 256GB)	vs	6 Advantages LG G5 (H850)
+2.9GHz 64bit Octa-core (5nm)55% More powerful processor, you can open your applications faster	vs	2.15GHz 64bit Quad-core
+12GB LPDDR52 times More RAM memory. Typically more responsive and better for multitasking.	vs	4GB LPDDR4
+256GB (220GB available)9 times More internal storage for applications and files	vs	32GB (22GB available)
+Dynamic AMOLEDAdvantage Dynamic AMOLED display is brighter and more vivid	vs	TFT IPS LCD
+1440x3200 pixels25% Higher resolution screen	vs	1440x2560 pixels
+6.8"28% Larger screen	vs	5.3"
+(quad camera) 108MP + 10MP + 10MP + 12MP5 times Higher resolution main camera	vs	(dual camera) 16MP + 8MP
+Digital and optical zoomAdvantage The zoom allows for better focus and approach to take pictures	vs	Only digital zoom
+BSI sensorAdvantage The BSI sensor allows the entry of more light generating photos with more detail and brightness	vs	Not supported
+HDR photo/video on both camerasAdvantage The HDR technology produced photos with more detail in dark areas	vs	HDR photo/video only main camera
+1/1.33" inches95% The larger sensor camera lets you take photos with better depth.	vs	1/2.6" inches
+(front) 40MP4 times Higher resolution secondary camera to take pictures and selfies	vs	(front) 8MP
+8K UHD (7680x4320)3 times More image quality for recording videos with the primary camera	vs	4K UHD (3840x2160)
+(front) 4K UHD (3840x2160)3 times More image quality for recording videos with the secondary camera	vs	(front) Full HD (1920x1080)
+Android 15Advantage Android 15 is newer and safer	vs	Android 7.0 Nougat
+5G SA/NSAAdvantage The 5G SA/NSA network is newer and faster	vs	4G LTE-A
+(5G SA/NSA) 5000 Mbps10 times Faster for surfing the internet and download files	vs	(4G LTE-A) 450 Mbps
+Face unlockAdvantage Sensors help you use the device	vs	Not supported
+UWB (Ultra Wideband)Advantage Sensors help you use the device	vs	Not supported
+5000 mAh79% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use	vs	2800 mAh
+1 slot (Single-SIM) + e-SIM (Eletronic)Advantage You can have more mobile carriers/operators on the same device.	vs	1 slot (Single-SIM) (dedicated slot)
+802.11 a/b/g/n/ac/ax [wifi6]Advantage WiFi 802.11 a/b/g/n/ac/ax [wifi6] is newer and faster	vs	802.11 a/b/g/n/ac [wifi5]
+5.2 + A2DP/LEAdvantage Bluetooth 5.2 + A2DP/LE is newer and faster	vs	4.2 + A2DP
+USB 3.2 Type-C, USB OTG On-The-GoAdvantage Newer and faster USB version for transferring photos, mp3 or data.	vs	USB 3.1 Type-C reversible connector
+IP68 certifiedAdvantage Protection against water allows you talk to your friends in the rain, for example	vs	Not supported
Not supported	vs	+Until 2TB microSD, microSDXCAdvantage More external storage for files using memory cards
227 grams (7.95 ounces)	vs	+159 grams (5.57 ounces)43% Lighter
8.9 millimeters (0.35 inches)	vs	+7.7 millimeters (0.3 inches)16% Thinner
516 PPI	vs	+554 PPI7% Crisper display of text, images and videos because it has more pixels per inch (ppi)
LiPo: li-ion polymer (Non removable)	vs	+Li-Ion: lithium-ion (Removable)Advantage Removable battery can be replaced easily
Type-C reversible connector	vs	+3.5mm jackAdvantage Headsets with 3.5mm Jack size are more common and easy to find in stores

24 Common items in both devices

16 million

LED flash

PDAF: phase detection autofocus on both cameras / LDAF: laser detection autofocus

OIS: Optical stabilization / OIS (3-axis): Optical stabilization

f/1.8 (aperture)

Capacitive

Multitouch

+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 differences

📱 Model features
	Galaxy S21 Ultra (SM-G998B 256GB)	LG G5 (H850)
Change model		Choose the model
Model	Galaxy S21 Ultra (SM-G998B 256GB)	LG G5 (H850)
Other model names	Galaxy S21 Ultra 5G (SM-G998B Single-SIM)	LG G5 4G H850, LG H850
Country or region available	Australia	South Africa, (Europe)
Brand	Samsung	LG
Release date	1/29/2021, Announced: 1/14/2021	3/31/2016
Depth	8.9 millimeters (0.35 inches)	7.7 millimeters (0.3 inches)
Size (width x height)	75.6 x 165.1 millimeters (2.98 x 6.5 in)	73.9 x 149.4 millimeters (2.91 x 5.88 in)
Weight	227 grams (7.95 ounces)	159 grams (5.57 ounces)
Build, materials	Aluminum frame, glass front/back	feature not registered
Protection against water and others	IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant	Not supported
📲 Display
	Galaxy S21 Ultra (SM-G998B 256GB)	LG G5 (H850)
Display type	Dynamic AMOLED	TFT IPS LCD
Screen size	6.8" inches	5.3" inches
Screen-to-body ratio	~89.4% (screen-to-body ratio)	~70.1% (screen-to-body ratio)
Display resolution	1440x3200 pixels (20:9)	1440x2560 pixels
Touchscreen	Capacitive Multitouch 10-points	Capacitive Multitouch
Pixel density (dot pitch)	516 PPI	554 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass Victus	Gorilla Glass 4
Refresh rate	120Hz	feature not registered
Display features	1500nits[peak] HDR10+ Always-On Display	feature not registered
🤖 Operating System
	Galaxy S21 Ultra (SM-G998B 256GB)	LG G5 (H850)
System version	Android 11	Android 6.0.1 Marshmallow
Firmware update	Android 15	Android 7.0 Nougat
User Interface	One UI 3.1 / 4.1 / 5.1 / 6.0 / 7.0	feature not registered
⚙️ Processor
	Galaxy S21 Ultra (SM-G998B 256GB)	LG G5 (H850)
Chipset	64bit: Samsung Exynos 2100 (5nm)	64bit: Qualcomm Snapdragon 820 MSM8996 (14nm)
CPU	Octa-core, 3 processors: 1x 2.9GHz ARM Cortex-X1 (Single-core) 3x 2.8GHz ARM Cortex-A78 (Triple-core) 4x 2.2GHz ARM Cortex-A55 (Quad-core)	Quad-core, 2 processors: 2x 2.15GHz Kryo (Dual-core) 2x 1.6GHz Kryo (Dual-core)
GPU graphical controller	ARM Mali-G78 MP14 (854MHz)	Qualcomm Adreno 530
Performance (benchmark)	AnTuTu: 657150 (v8), 727634 (v9) Geekbench: 3457 (v5.2) GFXBench: 51fps (ES 3.1 onscreen)	feature not registered
💽 Memory and storage
	Galaxy S21 Ultra (SM-G998B 256GB)	LG G5 (H850)
RAM memory	12GB LPDDR5	4GB LPDDR4
Internal storage	256GB (220GB available) UFS 3.1	32GB (22GB available)
External storage	Not supported	Until 2TB microSD, microSDXC (dedicated slot)
📶 Mobile networks
	Galaxy S21 Ultra (SM-G998B 256GB)	LG G5 (H850)
Dual-SIM	Dual-SIM Standby - Call active on one sim card	Not supported
SIM card	1 slot (Single-SIM) nano-SIM (4FF) + e-SIM	1 slot (Single-SIM) nano-SIM (4FF)
Maximum Download / Upload	5000/1920 Mbps	450/50 Mbps
Network technology	2G, 3G, 4G, 5G	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	GSM 850/900/1800/1900
Primary 3G network	UMTS 850/900/1700/1900/2100	UMTS 850/900/1900/2100
Primary 4G network	LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66) TD-LTE (38, 39, 40, 41) VoLTE	LTE Cat9 700/850/1700/1800/1900/2100/2300/2600 (Bands 1,2,3,4,5,7,12,17,30)
Primary 5G network	SA/NSA/Sub6 (1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78)	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE, LTE-A
Secondary 2G network	GSM 850/900/1800/1900	Not supported
Secondary 3G network	UMTS 850/900/1700/1900/2100	Not supported
Secondary 4G network	LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66) TD-LTE (38, 39, 40, 41) VoLTE	Not supported
Secondary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA	Not supported
📷 Camera
	Galaxy S21 Ultra (SM-G998B 256GB)	LG G5 (H850)
Back camera (main camera)	(quad camera) 108 megapixels 10MP periscope telephoto f/4.9240mm1/3.24"1.22µmPDAFOIS10x-optical-zoom 10MP telephoto f/2.470mm1/3.24"1.22µmPDAFOIS3x-optical-zoom 12MP ultrawide f/2.213mm1/2.55"1.4µmPDAFSuper-Steady-video	(dual camera) 16 megapixels 8MP f/2.412mm1/3.2
Main camera resolution	12000x9000 pixels	5312x2988 pixels
Video recording (primary)	8K UHD (7680x4320) 24 fps	4K UHD (3840x2160) 30 fps
Flash	LED flash	LED flash
Focal aperture	f/1.8 (aperture)	f/1.8 (aperture)
Focal length	26mm (lens)	29mm (lens)
Sensor size	1/1.33" inches	1/2.6" inches
Pixel size	1.8µm pixel	feature not registered
Autofocus	PDAF: phase detection autofocus on both cameras	LDAF: laser detection autofocus
Touch focus	Supported	Supported
Image stabilization	OIS: Optical stabilization	OIS (3-axis): Optical stabilization
Zoom	Digital and optical zoom	Only digital zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Supported	Not supported
HDR	HDR photo/video on both cameras	HDR photo/video only main camera
Camera extras	4K@60fps 1080p@240fps 720p@960fps	feature not registered
📸 Front camera
	Galaxy S21 Ultra (SM-G998B 256GB)	LG G5 (H850)
Front camera (secondary)	40 megapixels	8 megapixels
Front camera resolution	7296x5472 pixels	3264x2448 pixels
Video recording (secondary)	4K UHD (3840x2160)	Full HD (1920x1080)
Front flash	Not supported	Not supported
Focal aperture	f/2.2 (aperture)	f/2.0 (aperture)
Focal length	26mm (lens)	feature not registered
Sensor size	1/2.8" inches	1/4" inches
Pixel size	0.7µm pixel	1.12µm pixel
🔉 Sound and multimedia
	Galaxy S21 Ultra (SM-G998B 256GB)	LG G5 (H850)
Loudspeaker	Stereo sound 32-bit/384kHz Dolby Atmos Tuned by AKG	Supported
Active noise cancellation	3 microphones	2 microphones or more
Radio	FM	FM (RDS)
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263, XviD, MKV	MP4, H.264, H.263, DivX, XviD, WMV
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Galaxy S21 Ultra (SM-G998B 256GB)	LG G5 (H850)
USB	USB 3.2 Type-C, USB OTG On-The-Go	USB 3.1 Type-C reversible connector
Audio output	Type-C reversible connector	3.5mm jack
TV output	USB Type-C (reversible)	Not supported
Bluetooth	5.2 + A2DP/LE	4.2 + A2DP
WiFi	802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot
DLNA	Supported	Supported
GPS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou	A-GPS, GeoTagging, GLONASS
NFC	Supported	Supported
Infrared port	Not supported	Supported
🧭 Sensors
	Galaxy S21 Ultra (SM-G998B 256GB)	LG G5 (H850)
Sensors	Accelerometer Ambient light sensor Barometer Compass Face unlock Fingerprint sensor (under display) Gesture Gyroscope Hall effect Proximity sensor UWB (Ultra Wideband)	Accelerometer Ambient light sensor Barometer Compass Fingerprint sensor Gyroscope Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Galaxy S21 Ultra (SM-G998B 256GB)	LG G5 (H850)
Battery type	LiPo: li-ion polymer (Non removable)	Li-Ion: lithium-ion (Removable)
Battery capacity	5000 mAh	2800 mAh
Charger, watts	25W Wired fast charging USB Power Delivery 3.0	Wired charging
Inductive / wireless charging	15W Qi wireless charging (Qi/PMA) 4.5W Reverse wireless charging	feature not registered
Talk time autonomy	feature not registered	20 hours
Standby	feature not registered	380 hours (15.8 days)
➕ Other features
	Galaxy S21 Ultra (SM-G998B 256GB)	LG G5 (H850)
Call control	Voice dialing, Voice recorder, Voice commands	Voice dialing, Voice recorder
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: Phantom Black, Silver, Titanium, Navy, Brown • Samsung Pay (Visa, MasterCard) • Samsung DeX • Stylus pen support	• Colors: Silver, Titan, Gold, Pink • USB OTG On-The-Go • LG Optimus UX 5.0 UI • LG 360 VR supported • LG CAM Plus supported • 3D Arc Glass screen • Modular battery • Fast battery charging: 83% in 30min • Quick Charge 3.0
☢️ Radiation rate
	Galaxy S21 Ultra (SM-G998B 256GB)	LG G5 (H850)
SAR 1.6W/kg (USA, Mexico, etc.)	0.24W/kg (head), 0.72W/kg (body)	feature not registered
SAR 2W/kg (Europe, UK, etc.)	0.714W/kg (head), 1.58W/kg (body)	feature not registered