LG V40 ThinQ (V405QA7) vs Samsung Galaxy M55 (SM-M556B/DS 128GB)

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Side by side comparison between LG V40 ThinQ vs Samsung Galaxy M55 phones, differences, pros, cons and full specifications. What's the better?

5/19/2025 11:15 AM, updated: 5/20/2025 7:27 AM

Compare Samsung Galaxy M55 X LG V40 ThinQ (V405QA7) 14Points

Specifications Compare Models Pictures

6.4"
POLED

1440x3120

12
MP

8mp

6GB
RAM

Octa-core

3300
mAh

(Non removable)

18Points Samsung Galaxy M55 (SM-M556B/DS 128GB) Compare LG V40 ThinQ X

Specifications Compare Models Pictures

6.7"
AMOLED

1080x2400

50
MP

50mp

8GB
RAM

Octa-core

5000
mAh

(Non removable)

What's the better phone? Samsung Galaxy M55 (SM-M556B/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!

14 Advantages LG V40 ThinQ (V405QA7)	vs	18 Advantages Samsung Galaxy M55 (SM-M556B/DS 128GB)
+2.8GHz 64bit Octa-core1% More powerful processor, you can open your applications faster	vs	2.4GHz 64bit Octa-core (4nm)
+169 grams (5.92 ounces)7% Lighter	vs	180 grams (6.3 ounces)
+Aluminum frame, glass front/backAdvantage More resistant material	vs	Plastic body, glass front
+1440x3120 pixels73% Higher resolution screen	vs	1080x2400 pixels
+537 PPI37% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	393 PPI
+Digital and optical zoomAdvantage The zoom allows for better focus and approach to take pictures	vs	Only digital zoom
+f/1.5 (aperture)20% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.	vs	f/1.8 (aperture)
+BarometerAdvantage Sensors help you use the device	vs	Not supported
+Qi wireless chargingAdvantage Wireless charging is another way to charge the battery.	vs	Not supported
+3.5mm jackAdvantage Headsets with 3.5mm Jack size are more common and easy to find in stores	vs	Type-C reversible connector
+FMAdvantage The radio lets you listen to your songs and sports in general	vs	Not supported
+DLNAAdvantage With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.	vs	Not supported
+Gorilla Glass 5Advantage Protection against scratches on the screen lets you carry your phone with your keys	vs	Not supported
+IP68 certified, MIL-STD-810G military certifiedAdvantage Protection against water allows you talk to your friends in the rain, for example	vs	Not supported
6GB LPDDR4X	vs	+8GB LPDDR4X33% More RAM memory. Typically more responsive and better for multitasking.
64GB (47GB available)	vs	+128GB (105GB available)123% More internal storage for applications and files
UFS 2.1	vs	+UFS 2.2Advantage Fastest write and read storage.
P-OLED	vs	+Super AMOLEDAdvantage Super AMOLED display is brighter and more vivid
6.4"	vs	+6.7"5% Larger screen
(triple camera) 12MP + 12MP + 16MP	vs	+(triple camera) 50MP + 8MP + 2MP50% Higher resolution main camera
Not supported	vs	+BSI sensorAdvantage The BSI sensor allows the entry of more light generating photos with more detail and brightness
1/2.55" inches	vs	+1/1.56" inches63% The larger sensor camera lets you take photos with better depth.
(dual front camera) 8MP + 5MP	vs	+(front) 50MP3 times Higher resolution secondary camera to take pictures and selfies
(front) Full HD (1920x1080)	vs	+(front) 4K UHD (3840x2160)3 times More image quality for recording videos with the secondary camera
Android 9.0 Pie	vs	+Android 15Advantage Android 15 is newer and safer
4G LTE-A	vs	+5G Sub6Advantage The 5G Sub6 network is newer and faster
(4G LTE-A) 1024 Mbps	vs	+(5G Sub6) 3000 Mbps193% Faster for surfing the internet and download files
3300 mAh	vs	+5000 mAh52% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
18W	vs	+45W150% 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.
1 slot (Single-SIM) (dedicated slot)	vs	+2 slots (Dual-SIM) (hybrid slot/shares the same microSD slot)Advantage You can have more mobile carriers/operators on the same device.
802.11 a/b/g/n/ac [wifi5]	vs	+802.11 a/b/g/n/ac/ax [wifi6]Advantage WiFi 802.11 a/b/g/n/ac/ax [wifi6] is newer and faster
5.0 + A2DP/LE	vs	+5.2 + A2DP/LEAdvantage Bluetooth 5.2 + A2DP/LE is newer and faster

26 Common items in both devices

Until 1TB microSD, microSDXC

7.8 millimeters (0.31 inches)

16 million

LED flash

PDAF: phase detection autofocus

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

HDR photo/video and HDR photo on front camera / HDR photo on both cameras

+19 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 V40 ThinQ (V405QA7)	Galaxy M55 (SM-M556B/DS 128GB)
Change model		Choose the model
Model	V40 ThinQ (V405QA7)	Galaxy M55 (SM-M556B/DS 128GB)
Other model names	LG V40 (Unlocked) LMV405QA7, LM-V405QA7 (64GB)	Galaxy M55 5G SM-M556B/Dual-SIM
Country or region available	USA	(Global, International), Bangladesh, Mexico
Brand	LG	Samsung
Release date	10/1/2018	3/28/2024
Depth	7.8 millimeters (0.31 inches)	7.8 millimeters (0.31 inches)
Size (width x height)	75.8 x 158.75 millimeters (2.98 x 6.25 in)	76.5 x 163.9 millimeters (3.01 x 6.45 in)
Weight	169 grams (5.92 ounces)	180 grams (6.3 ounces)
Build, materials	Aluminum frame, glass front/back	Plastic body, glass front
Protection against water and others	IP68 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.	Not supported
📲 Display
	LG V40 ThinQ (V405QA7)	Galaxy M55 (SM-M556B/DS 128GB)
Display type	P-OLED	Super AMOLED
Screen size	6.4" inches	6.7" inches
Screen-to-body ratio	~83.6% (screen-to-body ratio)	~86.4% (screen-to-body ratio)
Display resolution	1440x3120 pixels	1080x2400 pixels (20:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch 10-points
Pixel density (dot pitch)	537 PPI	393 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 5	Not supported
Refresh rate	feature not registered	120Hz
Display features	feature not registered	Always-On Display
🤖 Operating System
	LG V40 ThinQ (V405QA7)	Galaxy M55 (SM-M556B/DS 128GB)
System version	Android 8.1 Oreo	Android 14
Firmware update	Android 9.0 Pie	Android 15
User Interface	feature not registered	One UI 6.1 / 7.0
⚙️ Processor
	LG V40 ThinQ (V405QA7)	Galaxy M55 (SM-M556B/DS 128GB)
Chipset	64bit: Qualcomm Snapdragon 845 MSM8998 (10nm)	64bit: Qualcomm Snapdragon 7 Gen 1 (SM7450-AB) (4nm)
CPU	Octa-core, 2 processors: 4x 2.8GHz Kryo 385 Gold (Quad-core) 4x 1.7GHz Kryo 385 Silver (Quad-core)	Octa-core, 3 processors: 1x 2.4GHz ARM Cortex-A710 (Single-core) 3x 2.36GHz ARM Cortex-A710 (Triple-core) 4x 1.8GHz ARM Cortex-A510 (Quad-core)
GPU graphical controller	Qualcomm Adreno 630 710Mhz	Qualcomm Adreno 644 (443MHz)
Performance (benchmark)	feature not registered	AnTuTu: 582102 (v10)
💽 Memory and storage
	LG V40 ThinQ (V405QA7)	Galaxy M55 (SM-M556B/DS 128GB)
RAM memory	6GB LPDDR4X	8GB LPDDR4X
Internal storage	64GB (47GB available) UFS 2.1	128GB (105GB available) UFS 2.2
External storage	Until 1TB microSD, microSDXC (dedicated slot)	Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)
📶 Mobile networks
	LG V40 ThinQ (V405QA7)	Galaxy M55 (SM-M556B/DS 128GB)
Dual-SIM	Not supported	Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot)
SIM card	1 slot (Single-SIM) nano-SIM (4FF)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	1024/150 Mbps	3000/1024 Mbps
Network technology	2G, 3G, 4G	2G, 3G, 4G, 5G
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	CDMA 800/1900, GSM 850/900/1800/1900	GSM 850/900/1800/1900
Primary 3G network	CDMA2000 1xEV-DO UMTS 850/900/1700/1900/2100	UMTS 850/900/1700/1900/2100
Primary 4G network	LTE Cat16 (Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 20, 25, 26, 28, 29, 30, 66, 71) TD-LTE (Bands 38, 39, 40, 41, 46) VoLTE	LTE Cat18 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 25, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE
Primary 5G network	Not supported	SA/NSA/Sub6 (1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78)
Primary data network	GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6
Secondary 2G network	Not supported	GSM 850/900/1800/1900
Secondary 3G network	Not supported	UMTS 850/900/1700/1900/2100
Secondary 4G network	Not supported	LTE Cat18 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 25, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE
Secondary data network	Not supported	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6
📷 Camera
	LG V40 ThinQ (V405QA7)	Galaxy M55 (SM-M556B/DS 128GB)
Back camera (main camera)	(triple camera) 12 megapixels 12MP telephoto f/2.41µm52mm2x-optical-zoomPDAFOIS 16MP ultrawide f/1.91µm1/3.1"16mmFF	(triple camera) 50 megapixels 8MP ultrawide f/2.2123° 2MP macro f/2.4
Main camera resolution	4000x3000 pixels	8160x6120 pixels
Video recording (primary)	4K UHD (3840x2160) 60 fps	4K UHD (3840x2160) 30 fps
Flash	LED flash	LED flash
Focal aperture	f/1.5 (aperture)	f/1.8 (aperture)
Focal length	27mm (lens)	feature not registered
Sensor size	1/2.55" inches	1/1.56" inches
Pixel size	1.4µm pixel	1µm pixel
Autofocus	PDAF: phase detection autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	OIS (3-axis): Optical stabilization	OIS: Optical stabilization
Zoom	Digital and optical zoom	Only digital zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Not supported	Supported
HDR	HDR photo/video and HDR photo on front camera	HDR photo on both cameras
Camera extras	feature not registered	4K@30fps 1080p@30/60fps 720p@240fps (slow motion)
📸 Front camera
	LG V40 ThinQ (V405QA7)	Galaxy M55 (SM-M556B/DS 128GB)
Front camera (secondary)	(dual front camera) 8 megapixels 5MP wide f/2.21.4µm21mm	50 megapixels
Front camera resolution	3264x2448 pixels	8160x6120 pixels
Video recording (secondary)	Full HD (1920x1080)	4K UHD (3840x2160)
Front flash	Not supported	Not supported
Focal aperture	f/1.9 (aperture)	f/2.4 (aperture)
Focal length	26mm (lens)	feature not registered
Sensor size	1/3.2" inches	feature not registered
Pixel size	1.4µm pixel	feature not registered
🔉 Sound and multimedia
	LG V40 ThinQ (V405QA7)	Galaxy M55 (SM-M556B/DS 128GB)
Loudspeaker	Supported	Stereo sound
Active noise cancellation	2 microphones or more	2 microphones
Radio	FM	Not supported
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263, XviD, MKV	MP4, H.265, H.264, H.263, XviD, MKV
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	LG V40 ThinQ (V405QA7)	Galaxy M55 (SM-M556B/DS 128GB)
USB	USB 2.0 Type-C, USB OTG On-The-Go	USB 2.0 Type-C, USB OTG On-The-Go
Audio output	3.5mm jack	Type-C reversible connector
TV output	Not supported	USB Type-C (reversible)
Bluetooth	5.0 + A2DP/LE	5.2 + 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/ax [wifi6] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot
DLNA	Supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS, GALILEO	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS
NFC	Supported	Supported
Infrared port	Not supported	Not supported
🧭 Sensors
	LG V40 ThinQ (V405QA7)	Galaxy M55 (SM-M556B/DS 128GB)
Sensors	Accelerometer Ambient light sensor Barometer Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor	Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (under display) Gyroscope Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	LG V40 ThinQ (V405QA7)	Galaxy M55 (SM-M556B/DS 128GB)
Battery type	LiPo: li-ion polymer (Non removable)	Li-Ion: lithium-ion (Non removable)
Battery capacity	3300 mAh	5000 mAh
Charger, watts	18W Wired fast charging	45W Wired fast charging
Inductive / wireless charging	Qi wireless charging	Not supported
Talk time autonomy	22 hours	feature not registered
Standby	413 hours (17.2 days)	feature not registered
➕ Other features
	LG V40 ThinQ (V405QA7)	Galaxy M55 (SM-M556B/DS 128GB)
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: Aurora Black • 19.5:9, Dolby Vision and HDR10 display • Always-on display • DTS-X 3D sound • USB Power Delivery 2.0	• Colors: Dark Blue, Light Green
☢️ Radiation rate
	LG V40 ThinQ (V405QA7)	Galaxy M55 (SM-M556B/DS 128GB)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	0.79W/kg (head), 1.09W/kg (body)
SAR 2W/kg (Europe, UK, etc.)	feature not registered	0.96W/kg (head), 0.98W/kg (body)