Samsung Galaxy A51 (SM-A515F/DSM 128GB) vs Samsung Galaxy M42 (SM-M426B/DS 128GB/6GB)

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Side by side comparison between Samsung Galaxy A51 vs Samsung Galaxy M42 phones, differences, pros, cons and full specifications. What's the better?

6/14/2021 7:48 AM, updated: 12/10/2022 5:39 PM

Compare Samsung Galaxy M42 X Samsung Galaxy A51 (SM-A515F/DSM 128GB) 09Points

Specifications Compare Models Pictures

6.5"
AMOLED

1080x2400

48
MP

32mp

6GB
RAM

Octa-core

4000
mAh

(Non removable)

08Points Samsung Galaxy M42 (SM-M426B/DS 128GB/6GB) Compare Samsung Galaxy A51 X

Specifications Compare Models Pictures

6.6"
AMOLED

720x1600

48
MP

20mp

6GB
RAM

Octa-core

5000
mAh

(Non removable)

What's the better phone? Samsung Galaxy A51 (SM-A515F/DSM 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!

9 Advantages Samsung Galaxy A51 (SM-A515F/DSM 128GB)	vs	8 Advantages Samsung Galaxy M42 (SM-M426B/DS 128GB/6GB)
+172 grams (6.02 ounces)12% Lighter	vs	193 grams (6.76 ounces)
+7.9 millimeters (0.31 inches)9% Thinner	vs	8.6 millimeters (0.34 inches)
+1080x2400 pixels125% Higher resolution screen	vs	720x1600 pixels
+405 PPI52% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	266 PPI
+(quad camera) 48MP + 12MP + 5MP + 5MP6% Higher resolution main camera	vs	(quad camera) 48MP + 8MP + 5MP + 5MP
+(front) 32MP61% Higher resolution secondary camera to take pictures and selfies	vs	(front) 20MP
+ANT+Advantage Sensors help you use the device	vs	Not supported
+2 slots (Dual-SIM) (dedicated slot)Advantage You can have more mobile carriers/operators on the same device.	vs	2 slots (Dual-SIM) (hybrid slot/shares the same microSD slot)
+Gorilla Glass 3Advantage Protection against scratches on the screen lets you carry your phone with your keys	vs	Not supported
2.3GHz 64bit Octa-core (10nm)	vs	+2.2GHz 64bit Octa-core (8nm)23% More powerful processor, you can open your applications faster
eMMC 5.1	vs	+UFS 2.1Advantage Fastest write and read storage.
6.5"	vs	+6.6"2% Larger screen
f/2.0 (aperture)	vs	+f/1.8 (aperture)11% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
4G LTE-A	vs	+5G SA/NSAAdvantage The 5G SA/NSA network is newer and faster
(4G LTE-A) 600 Mbps	vs	+(5G SA/NSA) 2000 Mbps2 times Faster for surfing the internet and download files
4000 mAh	vs	+5000 mAh25% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
Not supported	vs	+NFCAdvantage NFC allows you to make payments by approach quickly and securely

34 Common items in both devices

6GB LPDDR4X

128GB (107GB available) / 128GB (103GB available)

Until 1TB microSD, microSDXC

Plastic body, glass front

Super AMOLED

60Hz

16 million

+27 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 A51 (SM-A515F/DSM 128GB)	Galaxy M42 (SM-M426B/DS 128GB/6GB)
Change model		Choose the model
Model	Galaxy A51 (SM-A515F/DSM 128GB)	Galaxy M42 (SM-M426B/DS 128GB/6GB)
Other model names	Samsung Galaxy A51 SM-A515F/DSM	Galaxy M42 5G SM-M426B/Dual-SIM (6GB RAM)
Country or region available	Kazakhstan, Russia	India
Brand	Samsung	Samsung
Release date	12/16/2019, Announced: 12/12/2019	5/1/2021, Announced: 4/28/2021
Depth	7.9 millimeters (0.31 inches)	8.6 millimeters (0.34 inches)
Size (width x height)	73.6 x 158.5 millimeters (2.9 x 6.24 in)	75.9 x 164.4 millimeters (2.99 x 6.47 in)
Weight	172 grams (6.02 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 A51 (SM-A515F/DSM 128GB)	Galaxy M42 (SM-M426B/DS 128GB/6GB)
Display type	Super AMOLED	Super AMOLED
Screen size	6.5" inches	6.6" inches
Screen-to-body ratio	~87.4% (screen-to-body ratio)	~84.3% (screen-to-body ratio)
Display resolution	1080x2400 pixels (20:9)	720x1600 pixels (20:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	405 PPI	266 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 3	Not supported
Refresh rate	60Hz	60Hz
Display features	Always-On Display	Not supported
🤖 Operating System
	Galaxy A51 (SM-A515F/DSM 128GB)	Galaxy M42 (SM-M426B/DS 128GB/6GB)
System version	Android 10	Android 11
Firmware update	Android 13	Android 13
User Interface	One UI 2.5 / 3.1 / 4.1 / 5.0	One UI 3.1 / 4.1 / 5.0
⚙️ Processor
	Galaxy A51 (SM-A515F/DSM 128GB)	Galaxy M42 (SM-M426B/DS 128GB/6GB)
Chipset	64bit: Samsung Exynos 9611 (10nm)	64bit: Qualcomm Snapdragon 750G (SM7225) (8nm)
CPU	Octa-core, 2 processors: 4x 2.3GHz ARM Cortex-A73 (Quad-core) 4x 1.7GHz ARM Cortex-A53 (Quad-core)	Octa-core, 2 processors: 2x 2.2GHz Kryo 570 (Dual-core) 6x 1.8GHz Kryo 570 (Hexa-core)
GPU graphical controller	ARM Mali-G72 MP3 (850MHz)	Qualcomm Adreno 619 (800MHz)
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	Galaxy A51 (SM-A515F/DSM 128GB)	Galaxy M42 (SM-M426B/DS 128GB/6GB)
RAM memory	6GB LPDDR4X	6GB LPDDR4X
Internal storage	128GB (107GB available) eMMC 5.1	128GB (103GB available) UFS 2.1
External storage	Until 1TB microSD, microSDXC (dedicated slot)	Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)
📶 Mobile networks
	Galaxy A51 (SM-A515F/DSM 128GB)	Galaxy M42 (SM-M426B/DS 128GB/6GB)
Dual-SIM	Dual-SIM Standby - Call active on one sim card (dedicated 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	600/150 Mbps	2000/1024 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	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 Cat12/13 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 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	Not supported	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	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	Not supported	UMTS 850/900/1700/1900/2100
Secondary 4G network	Not supported	LTE Cat12 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28) TD-LTE (38, 40, 41) VoLTE
Secondary data network	GPRS, EDGE	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA
📷 Camera
	Galaxy A51 (SM-A515F/DSM 128GB)	Galaxy M42 (SM-M426B/DS 128GB/6GB)
Back camera (main camera)	(quad camera) 48 megapixels 12MP ultrawide f/2.213mm1.12µm 5MP telephoto f/2.440mm 5MP depth f/2.21/5.0"1.12µm	(quad camera) 48 megapixels 8MP ultrawide f/2.2123° 5MP macro f/2.4 5MP depth f/2.4
Main camera resolution	8000x6000 pixels	8000x6000 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	4K UHD (3840x2160) 30 fps
Flash	LED flash	LED flash
Focal aperture	f/2.0 (aperture)	f/1.8 (aperture)
Focal length	26mm lens	feature not registered
Sensor size	1/2" inches	1/2" inches
Pixel size	0.8µm pixel	0.8µm pixel
Autofocus	PDAF: phase detection autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	EIS: Digital stabilization	EIS: Digital stabilization
Zoom	Only digital zoom	Only digital zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Not supported	Supported
HDR	HDR photo on both cameras	HDR photo on both cameras
Camera extras	feature not registered	feature not registered
📸 Front camera
	Galaxy A51 (SM-A515F/DSM 128GB)	Galaxy M42 (SM-M426B/DS 128GB/6GB)
Front camera (secondary)	32 megapixels	20 megapixels
Front camera resolution	6528x4896 pixels	5184x3840 pixels
Video recording (secondary)	4K UHD (3840x2160)	4K UHD (3840x2160)
Front flash	Not supported	Not supported
Focal aperture	f/2.2 (aperture)	f/2.2 (aperture)
Focal length	26mm lens	feature not registered
Sensor size	1/2.8" inches	feature not registered
Pixel size	0.8µm pixel	feature not registered
🔉 Sound and multimedia
	Galaxy A51 (SM-A515F/DSM 128GB)	Galaxy M42 (SM-M426B/DS 128GB/6GB)
Loudspeaker	Supported	Mono sound (not stereo)
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	FM (RDS)	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 A51 (SM-A515F/DSM 128GB)	Galaxy M42 (SM-M426B/DS 128GB/6GB)
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	3.5mm jack
TV output	Not supported	USB Type-C (reversible)
Bluetooth	5.0 + A2DP/LE	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	Not supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFC	Not supported	Supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Galaxy A51 (SM-A515F/DSM 128GB)	Galaxy M42 (SM-M426B/DS 128GB/6GB)
Sensors	Accelerometer Ambient light sensor ANT+ Compass Face unlock Fingerprint sensor (under display) Gyroscope Hall effect Virtual proximity sensor	Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (under display) Gyroscope Virtual proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Galaxy A51 (SM-A515F/DSM 128GB)	Galaxy M42 (SM-M426B/DS 128GB/6GB)
Battery type	LiPo: li-ion polymer (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	4000 mAh	5000 mAh
Charger, watts	15W 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 A51 (SM-A515F/DSM 128GB)	Galaxy M42 (SM-M426B/DS 128GB/6GB)
Call control	Voice dialing, Voice recorder	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: Prism, Crush Black, White, Blue, Pink	• Colors: Prism Dot Black, Gray • Samsung Pay
☢️ Radiation rate
	Galaxy A51 (SM-A515F/DSM 128GB)	Galaxy M42 (SM-M426B/DS 128GB/6GB)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	0.689W/kg (head)
SAR 2W/kg (Europe, UK, etc.)	0.369W/kg (head), 1.59W/kg (body)	feature not registered