Samsung Galaxy M55 (SM-M556B/DS 256GB/12GB) vs Samsung Galaxy M42 (SM-M426B/DS 128GB/8GB)

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Side by side comparison between Samsung Galaxy M55 vs Samsung Galaxy M42 phones, differences, pros, cons and full specifications. What's the better?

5/19/2025 10:48 AM, updated: 5/20/2025 7:29 AM

Compare Samsung Galaxy M42 X Samsung Galaxy M55 (SM-M556B/DS 256GB/12GB) 20Points

Specifications Compare Models Pictures

6.7"
AMOLED

1080x2400

50
MP

50mp

12GB
RAM

Octa-core

5000
mAh

(Non removable)

03Points Samsung Galaxy M42 (SM-M426B/DS 128GB/8GB) Compare Samsung Galaxy M55 X

Specifications Compare Models Pictures

6.6"
AMOLED

720x1600

48
MP

20mp

8GB
RAM

Octa-core

5000
mAh

(Non removable)

What's the better phone? Samsung Galaxy M55 (SM-M556B/DS 256GB/12GB)

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!

20 Advantages Samsung Galaxy M55 (SM-M556B/DS 256GB/12GB)	vs	3 Advantages Samsung Galaxy M42 (SM-M426B/DS 128GB/8GB)
+2.4GHz 64bit Octa-core (4nm)16% More powerful processor, you can open your applications faster	vs	2.2GHz 64bit Octa-core (8nm)
+12GB LPDDR4X50% More RAM memory. Typically more responsive and better for multitasking.	vs	8GB LPDDR4X
+256GB (233GB available)126% More internal storage for applications and files	vs	128GB (103GB available)
+UFS 2.2Advantage Fastest write and read storage.	vs	UFS 2.1
+180 grams (6.3 ounces)7% Lighter	vs	193 grams (6.76 ounces)
+7.8 millimeters (0.31 inches)10% Thinner	vs	8.6 millimeters (0.34 inches)
+120Hz100% The display reproduces more frames per second because the frequency (Hertz) is higher, improves fluidity and tires your eyes less.	vs	60Hz
+1080x2400 pixels125% Higher resolution screen	vs	720x1600 pixels
+393 PPI48% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	266 PPI
+6.7"2% Larger screen	vs	6.6"
+OIS: Optical stabilizationAdvantage Image stabilization prevents blurry photos and helps in recording motion video	vs	EIS: Digital stabilization
+1/1.56" inches28% The larger sensor camera lets you take photos with better depth.	vs	1/2" inches
+(front) 50MP151% Higher resolution secondary camera to take pictures and selfies	vs	(front) 20MP
+Android 15Advantage Android 15 is newer and safer	vs	Android 13
+(5G Sub6) 3000 Mbps50% Faster for surfing the internet and download files	vs	(5G SA/NSA) 2000 Mbps
+Proximity sensorAdvantage Sensors help you use the device	vs	Virtual proximity sensor
+45W2 times 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.	vs	15W
+Stereo soundAdvantage Better sound quality for listening to music or clearer hands-free calls	vs	Mono sound (not stereo)
+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	5.0 + A2DP/LE
(triple camera) 50MP + 8MP + 2MP	vs	+(quad camera) 48MP + 8MP + 5MP + 5MP10% Higher resolution main camera
Type-C reversible connector	vs	+3.5mm jackAdvantage Headsets with 3.5mm Jack size are more common and easy to find in stores
Not supported	vs	+FMAdvantage The radio lets you listen to your songs and sports in general

32 Common items in both devices

Until 1TB microSD, microSDXC

Plastic body, glass front

Super AMOLED

16 million

LED flash

Only digital zoom

PDAF: phase detection autofocus

+25 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 M55 (SM-M556B/DS 256GB/12GB)	Galaxy M42 (SM-M426B/DS 128GB/8GB)
Change model		Choose the model
Model	Galaxy M55 (SM-M556B/DS 256GB/12GB)	Galaxy M42 (SM-M426B/DS 128GB/8GB)
Other model names	Galaxy M55 5G SM-M556B/Dual-SIM	Galaxy M42 5G SM-M426B/Dual-SIM (8GB RAM)
Country or region available	(Middle East), India, Israel, Vietnam	India
Brand	Samsung	Samsung
Release date	3/28/2024	5/1/2021, Announced: 4/28/2021
Depth	7.8 millimeters (0.31 inches)	8.6 millimeters (0.34 inches)
Size (width x height)	76.5 x 163.9 millimeters (3.01 x 6.45 in)	75.9 x 164.4 millimeters (2.99 x 6.47 in)
Weight	180 grams (6.3 ounces)	193 grams (6.76 ounces)
Build, materials	Plastic body, glass front	Plastic body, glass front
Protection against water and others	Not supported	Not supported
📲 Display
	Galaxy M55 (SM-M556B/DS 256GB/12GB)	Galaxy M42 (SM-M426B/DS 128GB/8GB)
Display type	Super AMOLED	Super AMOLED
Screen size	6.7" inches	6.6" inches
Screen-to-body ratio	~86.4% (screen-to-body ratio)	~84.3% (screen-to-body ratio)
Display resolution	1080x2400 pixels (20:9)	720x1600 pixels (20:9)
Touchscreen	Capacitive Multitouch 10-points	Capacitive Multitouch
Pixel density (dot pitch)	393 PPI	266 PPI
Colors	16 million	16 million
Scratch-resistant glass	Not supported	Not supported
Refresh rate	120Hz	60Hz
Display features	Always-On Display	Not supported
🤖 Operating System
	Galaxy M55 (SM-M556B/DS 256GB/12GB)	Galaxy M42 (SM-M426B/DS 128GB/8GB)
System version	Android 14	Android 11
Firmware update	Android 15	Android 13
User Interface	One UI 6.1 / 7.0	One UI 3.1 / 4.1 / 5.0
⚙️ Processor
	Galaxy M55 (SM-M556B/DS 256GB/12GB)	Galaxy M42 (SM-M426B/DS 128GB/8GB)
Chipset	64bit: Qualcomm Snapdragon 7 Gen 1 (SM7450-AB) (4nm)	64bit: Qualcomm Snapdragon 750G (SM7225) (8nm)
CPU	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)	Octa-core, 2 processors: 2x 2.2GHz Kryo 570 (Dual-core) 6x 1.8GHz Kryo 570 (Hexa-core)
GPU graphical controller	Qualcomm Adreno 644 (443MHz)	Qualcomm Adreno 619 (800MHz)
Performance (benchmark)	AnTuTu: 582102 (v10)	feature not registered
💽 Memory and storage
	Galaxy M55 (SM-M556B/DS 256GB/12GB)	Galaxy M42 (SM-M426B/DS 128GB/8GB)
RAM memory	12GB LPDDR4X	8GB LPDDR4X
Internal storage	256GB (233GB available) UFS 2.2	128GB (103GB available) UFS 2.1
External storage	Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)	Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)
📶 Mobile networks
	Galaxy M55 (SM-M556B/DS 256GB/12GB)	Galaxy M42 (SM-M426B/DS 128GB/8GB)
Dual-SIM	Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot)	Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot)
SIM card	2 slots (Dual-SIM) nano-SIM (4FF)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	3000/1024 Mbps	2000/1024 Mbps
Network technology	2G, 3G, 4G, 5G	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	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Primary 3G network	UMTS 850/900/1700/1900/2100	UMTS 850/900/1700/1900/2100
Primary 4G network	LTE Cat18 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 25, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE	LTE Cat12 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28) TD-LTE (38, 40, 41) VoLTE
Primary 5G network	SA/NSA/Sub6 (1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78)	SA/NSA/Sub6 (1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 78)
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA
Secondary 2G network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Secondary 3G network	UMTS 850/900/1700/1900/2100	UMTS 850/900/1700/1900/2100
Secondary 4G network	LTE Cat18 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 25, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE	LTE Cat12 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28) TD-LTE (38, 40, 41) VoLTE
Secondary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA
📷 Camera
	Galaxy M55 (SM-M556B/DS 256GB/12GB)	Galaxy M42 (SM-M426B/DS 128GB/8GB)
Back camera (main camera)	(triple camera) 50 megapixels 8MP ultrawide f/2.2123° 2MP macro f/2.4	(quad camera) 48 megapixels 8MP ultrawide f/2.2123° 5MP macro f/2.4 5MP depth f/2.4
Main camera resolution	8160x6120 pixels	8000x6000 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	4K UHD (3840x2160) 30 fps
Flash	LED flash	LED flash
Focal aperture	f/1.8 (aperture)	f/1.8 (aperture)
Focal length	feature not registered	feature not registered
Sensor size	1/1.56" inches	1/2" inches
Pixel size	1µm pixel	0.8µm pixel
Autofocus	PDAF: 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	Supported
HDR	HDR photo on both cameras	HDR photo on both cameras
Camera extras	4K@30fps 1080p@30/60fps 720p@240fps (slow motion)	feature not registered
📸 Front camera
	Galaxy M55 (SM-M556B/DS 256GB/12GB)	Galaxy M42 (SM-M426B/DS 128GB/8GB)
Front camera (secondary)	50 megapixels	20 megapixels
Front camera resolution	8160x6120 pixels	5184x3840 pixels
Video recording (secondary)	4K UHD (3840x2160)	4K UHD (3840x2160)
Front flash	Not supported	Not supported
Focal aperture	f/2.4 (aperture)	f/2.2 (aperture)
Focal length	feature not registered	feature not registered
Sensor size	feature not registered	feature not registered
Pixel size	feature not registered	feature not registered
🔉 Sound and multimedia
	Galaxy M55 (SM-M556B/DS 256GB/12GB)	Galaxy M42 (SM-M426B/DS 128GB/8GB)
Loudspeaker	Stereo sound	Mono sound (not stereo)
Active noise cancellation	2 microphones	2 microphones or more
Radio	Not supported	FM
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
	Galaxy M55 (SM-M556B/DS 256GB/12GB)	Galaxy M42 (SM-M426B/DS 128GB/8GB)
USB	USB 2.0 Type-C, USB OTG On-The-Go	USB 2.0 Type-C, USB OTG On-The-Go
Audio output	Type-C reversible connector	3.5mm jack
TV output	USB Type-C (reversible)	USB Type-C (reversible)
Bluetooth	5.2 + A2DP/LE	5.0 + A2DP/LE
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	Not supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFC	Supported	Supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Galaxy M55 (SM-M556B/DS 256GB/12GB)	Galaxy M42 (SM-M426B/DS 128GB/8GB)
Sensors	Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (under display) Gyroscope Proximity sensor	Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (under display) Gyroscope Virtual proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Galaxy M55 (SM-M556B/DS 256GB/12GB)	Galaxy M42 (SM-M426B/DS 128GB/8GB)
Battery type	Li-Ion: lithium-ion (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	5000 mAh	5000 mAh
Charger, watts	45W Wired fast charging	15W Wired fast charging
Inductive / wireless charging	Not supported	Not supported
Talk time autonomy	feature not registered	36 hours (1.5 days)
Standby	feature not registered	feature not registered
➕ Other features
	Galaxy M55 (SM-M556B/DS 256GB/12GB)	Galaxy M42 (SM-M426B/DS 128GB/8GB)
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: Dark Blue, Light Green	• Colors: Prism Dot Black, Gray • Samsung Pay
☢️ Radiation rate
	Galaxy M55 (SM-M556B/DS 256GB/12GB)	Galaxy M42 (SM-M426B/DS 128GB/8GB)
SAR 1.6W/kg (USA, Mexico, etc.)	0.79W/kg (head), 1.09W/kg (body)	0.689W/kg (head)
SAR 2W/kg (Europe, UK, etc.)	0.96W/kg (head), 0.98W/kg (body)	feature not registered