Samsung Galaxy M55s (SM-M558B/DS 128GB) vs Samsung Galaxy S7 (SM-G930W8)

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Side by side comparison between Samsung Galaxy M55s vs Samsung Galaxy S7 phones, differences, pros, cons and full specifications. What's the better?

5/20/2025 7:22 AM, updated: 5/20/2025 7:36 AM

Compare Samsung Galaxy S7 X Samsung Galaxy M55s (SM-M558B/DS 128GB) 22Points

Specifications Compare Models Pictures

6.7"
AMOLED

1080x2400

50
MP

50mp

8GB
RAM

Octa-core

5000
mAh

(Non removable)

14Points Samsung Galaxy S7 (SM-G930W8) Compare Samsung Galaxy M55s X

Specifications Compare Models Pictures

5.1"
AMOLED

1440x2560

12.2
MP

5mp

4GB
RAM

Octa-core

3000
mAh

(Non removable)

What's the better phone? Samsung Galaxy M55s (SM-M558B/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!

22 Advantages Samsung Galaxy M55s (SM-M558B/DS 128GB)	vs	14 Advantages Samsung Galaxy S7 (SM-G930W8)
+2.4GHz 64bit Octa-core (4nm)31% More powerful processor, you can open your applications faster	vs	2.3GHz 64bit Octa-core (14nm)
+8GB LPDDR4X100% More RAM memory. Typically more responsive and better for multitasking.	vs	4GB LPDDR4
+128GB (105GB available)4 times More internal storage for applications and files	vs	32GB (22GB available)
+UFS 2.2Advantage Fastest write and read storage.	vs	UFS 2.0
+Until 1TB microSD, microSDXC3 times More external storage for files using memory cards	vs	Until 256GB microSD, microSDXC
+7.8 millimeters (0.31 inches)1% Thinner	vs	7.9 millimeters (0.31 inches)
+120Hz100% The display reproduces more frames per second because the frequency (Hertz) is higher, improves fluidity and tires your eyes less.	vs	60Hz
+6.7"31% Larger screen	vs	5.1"
+(triple camera) 50MP + 8MP + 2MP4 times Higher resolution main camera	vs	(back) 12.2MP
+1/1.56" inches63% The larger sensor camera lets you take photos with better depth.	vs	1/2.55" inches
+(front) 50MP9 times Higher resolution secondary camera to take pictures and selfies	vs	(front) 5MP
+(front) 4K UHD (3840x2160)125% More image quality for recording videos with the secondary camera	vs	(front) 2K UHD (2560x1440)
+Android 15Advantage Android 15 is newer and safer	vs	Android 8.0 Oreo
+5G Sub6Advantage The 5G Sub6 network is newer and faster	vs	4G LTE-A
+(5G Sub6) 3000 Mbps6 times Faster for surfing the internet and download files	vs	(4G LTE-A) 450 Mbps
+Face unlock 2DAdvantage Sensors help you use the device	vs	Not supported
+5000 mAh67% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use	vs	3000 mAh
+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
+2 slots (Dual-SIM) (hybrid slot/shares the same microSD slot)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
+Type-CAdvantage Reversible connector, you can stick in a USB-C cable any which way; either side is up.	vs	MicroUSB 2.0, USB OTG On-The-Go
180 grams (6.3 ounces)	vs	+152 grams (5.32 ounces)18% Lighter
Plastic body, glass front	vs	+Aluminum frame, glass front/backAdvantage More resistant material
1080x2400 pixels	vs	+1440x2560 pixels42% Higher resolution screen
393 PPI	vs	+576 PPI47% Crisper display of text, images and videos because it has more pixels per inch (ppi)
f/1.8 (aperture)	vs	+f/1.7 (aperture)6% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
Not supported	vs	+ANT+Advantage Sensors help you use the device
Not supported	vs	+BarometerAdvantage Sensors help you use the device
Not supported	vs	+Heart rateAdvantage Sensors help you use the device
Not supported	vs	+SpO2Advantage Sensors help you use the device
Not supported	vs	+Qi wireless charging (Qi/PMA)Advantage Wireless charging is another way to charge the battery.
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	+DLNAAdvantage With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.
Not supported	vs	+Gorilla Glass 4Advantage Protection against scratches on the screen lets you carry your phone with your keys
Not supported	vs	+IP68 certifiedAdvantage Protection against water allows you talk to your friends in the rain, for example

26 Common items in both devices

Super AMOLED

16 million

LED flash

Only digital zoom

PDAF: phase detection autofocus

OIS: Optical stabilization

BSI sensor

+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
	Galaxy M55s (SM-M558B/DS 128GB)	Galaxy S7 (SM-G930W8)
Change model		Choose the model
Model	Galaxy M55s (SM-M558B/DS 128GB)	Galaxy S7 (SM-G930W8)
Other model names	Galaxy M55s 5G SM-M558B/Dual-SIM	Rogers/Bell Galaxy S7 G930W8 (Exynos), Samsung Hero
Country or region available	Bangladesh, India	Canada
Brand	Samsung	Samsung
Release date	9/26/2024, Announced: 9/24/2024	3/11/2016, Announced: 2/21/2016
Depth	7.8 millimeters (0.31 inches)	7.9 millimeters (0.31 inches)
Size (width x height)	76.5 x 163.9 millimeters (3.01 x 6.45 in)	69.6 x 142.4 millimeters (2.74 x 5.61 in)
Weight	180 grams (6.3 ounces)	152 grams (5.32 ounces)
Build, materials	Plastic body, glass front	Aluminum frame, glass front/back
Protection against water and others	Not supported	IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant
📲 Display
	Galaxy M55s (SM-M558B/DS 128GB)	Galaxy S7 (SM-G930W8)
Display type	Super AMOLED	Super AMOLED
Screen size	6.7" inches	5.1" inches
Screen-to-body ratio	~86.4% (screen-to-body ratio)	~72.3% (screen-to-body ratio)
Display resolution	1080x2400 pixels (20:9)	1440x2560 pixels (16:9)
Touchscreen	Capacitive Multitouch 10-points	Capacitive Multitouch 10-points
Pixel density (dot pitch)	393 PPI	576 PPI
Colors	16 million	16 million
Scratch-resistant glass	Not supported	Gorilla Glass 4
Refresh rate	120Hz	60Hz
Display features	Always-On Display	Not supported
🤖 Operating System
	Galaxy M55s (SM-M558B/DS 128GB)	Galaxy S7 (SM-G930W8)
System version	Android 14	Android 6.0.1 Marshmallow
Firmware update	Android 15	Android 8.0 Oreo
User Interface	One UI 6.1 / 7.0	feature not registered
⚙️ Processor
	Galaxy M55s (SM-M558B/DS 128GB)	Galaxy S7 (SM-G930W8)
Chipset	64bit: Qualcomm Snapdragon 7 Gen 1 (SM7450-AB) (4nm)	64bit: Samsung Exynos 8890 (14nm)
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: 4x 2.3GHz M1 Mongoose (Quad-core) 4x 1.6GHz ARM Cortex-A53 (Quad-core)
GPU graphical controller	Qualcomm Adreno 644 (443MHz)	ARM Mali-T880 MP12 (650MHz)
Performance (benchmark)	AnTuTu: 582102 (v10)	AnTuTu: 80582 (v5), 175184 (v8)
💽 Memory and storage
	Galaxy M55s (SM-M558B/DS 128GB)	Galaxy S7 (SM-G930W8)
RAM memory	8GB LPDDR4X	4GB LPDDR4
Internal storage	128GB (105GB available) UFS 2.2	32GB (22GB available) UFS 2.0
External storage	Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)	Until 256GB microSD, microSDXC (dedicated slot)
📶 Mobile networks
	Galaxy M55s (SM-M558B/DS 128GB)	Galaxy S7 (SM-G930W8)
Dual-SIM	Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot)	Not supported
SIM card	2 slots (Dual-SIM) nano-SIM (4FF)	1 slot (Single-SIM) nano-SIM (4FF)
Maximum Download / Upload	3000/1024 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	TD-SCDMA 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 Cat9 (Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 29, 30) TD-LTE (Bands 38, 39, 40, 41)
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, Sub6	GPRS, EDGE, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, 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 Cat18 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 25, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE	Not supported
Secondary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6	Not supported
📷 Camera
	Galaxy M55s (SM-M558B/DS 128GB)	Galaxy S7 (SM-G930W8)
Back camera (main camera)	(triple camera) 50 megapixels 8MP ultrawide f/2.2123° 2MP macro f/2.4	12.2 megapixels
Main camera resolution	8160x6120 pixels	4032x3024 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/1.7 (aperture)
Focal length	feature not registered	26mm (lens)
Sensor size	1/1.56" inches	1/2.55" inches
Pixel size	1µm pixel	1.4µm pixel
Autofocus	PDAF: phase detection autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	OIS: Optical stabilization	OIS: Optical 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/video on both cameras
Camera extras	4K@30fps 1080p@30/60fps 720p@240fps (slow motion)	feature not registered
📸 Front camera
	Galaxy M55s (SM-M558B/DS 128GB)	Galaxy S7 (SM-G930W8)
Front camera (secondary)	50 megapixels	5 megapixels
Front camera resolution	8160x6120 pixels	2592x1944 pixels
Video recording (secondary)	4K UHD (3840x2160)	2K UHD (2560x1440)
Front flash	Not supported	Not supported
Focal aperture	f/2.4 (aperture)	f/1.7 (aperture)
Focal length	feature not registered	22mm (lens)
Sensor size	feature not registered	1/4.1" inches
Pixel size	feature not registered	1.34µm pixel
🔉 Sound and multimedia
	Galaxy M55s (SM-M558B/DS 128GB)	Galaxy S7 (SM-G930W8)
Loudspeaker	Stereo sound	Supported
Active noise cancellation	2 microphones	2 microphones or more
Radio	Not supported	Not supported
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 M55s (SM-M558B/DS 128GB)	Galaxy S7 (SM-G930W8)
USB	USB 2.0 Type-C, USB OTG On-The-Go	MicroUSB 2.0, USB OTG On-The-Go
Audio output	Type-C reversible connector	3.5mm jack
TV output	USB Type-C (reversible)	Micro-B USB MHL
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	Not supported	Supported
GPS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS	A-GPS, GeoTagging, GLONASS, BeiDou
NFC	Supported	Supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Galaxy M55s (SM-M558B/DS 128GB)	Galaxy S7 (SM-G930W8)
Sensors	Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (under display) Gyroscope Proximity sensor	Accelerometer Ambient light sensor ANT+ Barometer Compass Fingerprint sensor (front-mounted) Gyroscope Hall effect Heart rate Proximity sensor SpO2
Vibrating alert	Supported	Supported
🔋 Battery
	Galaxy M55s (SM-M558B/DS 128GB)	Galaxy S7 (SM-G930W8)
Battery type	Li-Ion: lithium-ion (Non removable)	Li-Ion: lithium-ion (Non removable)
Battery capacity	5000 mAh	3000 mAh
Charger, watts	45W Wired fast charging	15W Wired fast charging Quick Charge 2
Inductive / wireless charging	Not supported	Qi wireless charging (Qi/PMA)
Talk time autonomy	feature not registered	28 hours (1.2 days)
Standby	feature not registered	288 hours (12 days)
➕ Other features
	Galaxy M55s (SM-M558B/DS 128GB)	Galaxy S7 (SM-G930W8)
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: Thunder Black, Coral Green	• Colors: Black, White, Gold, Silver • Corning Gorilla Glass back panel • Samsung Gear VR compatible • Fast battery charging: 83% in 30min • OneDrive 115GB • Samsung Pay (Visa, MasterCard)
☢️ Radiation rate
	Galaxy M55s (SM-M558B/DS 128GB)	Galaxy S7 (SM-G930W8)
SAR 1.6W/kg (USA, Mexico, etc.)	0.93W/kg (head)	0.6W/kg (head), 1.03W/kg (body)
SAR 2W/kg (Europe, UK, etc.)	feature not registered	feature not registered