Samsung Galaxy M33 (SM-M336BU/DS 128GB/8GB) vs Samsung Galaxy 551 (GT-i5510M)

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Side by side comparison between Samsung Galaxy M33 vs Samsung Galaxy 551 phones, differences, pros, cons and full specifications. What's the better?

7/6/2025 5:26 PM, updated: 7/6/2025 5:30 PM

Compare Samsung Galaxy 551 X Samsung Galaxy M33 (SM-M336BU/DS 128GB/8GB) 33Points

Specifications Compare Models Pictures

6.6"
PLS

1080x2408

50
MP

8mp

8GB
RAM

Octa-core

6000
mAh

(Non removable)

05Points Samsung Galaxy 551 (GT-i5510M) Compare Samsung Galaxy M33 X

Specifications Compare Models Pictures

3.2"
TFT

240x400

3.1
MP

512MB
RAM

Single-core

1200
mAh

(Removable)

What's the better phone? Samsung Galaxy M33 (SM-M336BU/DS 128GB/8GB)

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!

33 Advantages Samsung Galaxy M33 (SM-M336BU/DS 128GB/8GB)	vs	5 Advantages Samsung Galaxy 551 (GT-i5510M)
+2.4GHz 64bit Octa-core (5nm)7 times More powerful processor, you can open your applications faster	vs	600MHz 32bit Single-core
+8GB LPDDR4X15 times More RAM memory. Typically more responsive and better for multitasking.	vs	512MB
+128GB (101GB available)597 times More internal storage for applications and files	vs	512MB (173MB available)
+Until 1TB microSD, microSDXC31 times More external storage for files using memory cards	vs	Until 32GB microSD, microSDHC
+9.4 millimeters (0.37 inches)62% Thinner	vs	15.2 millimeters (0.6 inches)
+TFT PLSAdvantage TFT PLS display is brighter and more vivid	vs	TFT LCD
+1080x2408 pixels26 times Higher resolution screen	vs	240x400 pixels
+400 PPI174% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	146 PPI
+6.6"106% Larger screen	vs	3.2"
+(quad camera) 50MP + 5MP + 2MP + 2MP18 times Higher resolution main camera	vs	(back) 3.1MP
+LED flashAdvantage The LED flash helps in dark places or in low light	vs	Not supported
+EIS: Digital stabilizationAdvantage Image stabilization prevents blurry photos and helps in recording motion video	vs	Not supported
+BSI sensorAdvantage The BSI sensor allows the entry of more light generating photos with more detail and brightness	vs	Not supported
+HDR photo on both camerasAdvantage The HDR technology produced photos with more detail in dark areas	vs	Not supported
+(front) 8MPAdvantage A front-camera is best for taking selfies	vs	Not supported
+4K UHD (3840x2160)107 times More image quality for recording videos with the primary camera	vs	QVGA (320x240)
+Android 15Advantage Android 15 is newer and safer	vs	Android 2.3.6 Gingerbread
+5G Sub6Advantage The 5G Sub6 network is newer and faster	vs	3G HSUPA
+(5G Sub6) 2000 Mbps277 times Faster for surfing the internet and download files	vs	(3G HSUPA) 7.2 Mbps
+Virtual ambient light sensorAdvantage Sensors help you use the device	vs	Not supported
+Face unlock 2DAdvantage Sensors help you use the device	vs	Not supported
+Fingerprint sensor (side-mounted)Advantage Sensors help you use the device	vs	Not supported
+GyroscopeAdvantage Sensors help you use the device	vs	Not supported
+6000 mAh4 times Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use	vs	1200 mAh
+Video callingAdvantage The video calling allows to make calls with voice and video	vs	Not supported
+2 slots (Dual-SIM) (dedicated slot)Advantage You can have more mobile carriers/operators on the same device.	vs	1 slot (Single-SIM) (dedicated slot)
+Active noise cancellationAdvantage More noise-canceling microphones allow for better quality in calls and audio for recorded videos	vs	Not supported
+802.11 a/b/g/n/ac [wifi5]Advantage WiFi 802.11 a/b/g/n/ac [wifi5] is newer and faster	vs	802.11 b/g/n [wifi4]
+5.1 + A2DP/LEAdvantage Bluetooth 5.1 + A2DP/LE is newer and faster	vs	3.0 + A2DP
+NFCAdvantage NFC allows you to make payments by approach quickly and securely	vs	Not supported
+Type-CAdvantage Reversible connector, you can stick in a USB-C cable any which way; either side is up.	vs	MicroUSB 2.0
+HTML, XHTML, HTML5Advantage Better sites viewing on the internet	vs	HTML, XHTML, Flash player
+Gorilla Glass 5Advantage Protection against scratches on the screen lets you carry your phone with your keys	vs	Not supported
198 grams (6.93 ounces)	vs	+117 grams (4.1 ounces)69% Lighter
Virtual proximity sensor	vs	+Proximity sensorAdvantage Sensors help you use the device
Li-Ion: lithium-ion (Non removable)	vs	+Li-Ion: lithium-ion (Removable)Advantage Removable battery can be replaced easily
Not supported	vs	+FM (RDS)Advantage The radio lets you listen to your songs and sports in general
Not supported	vs	+DLNAAdvantage With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.

12 Common items in both devices

16 million

Only digital zoom

PDAF: phase detection autofocus / Autofocus

Capacitive

Multitouch

Accelerometer

Compass

+5 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 M33 (SM-M336BU/DS 128GB/8GB)	Galaxy 551 (GT-i5510M)
Change model		Choose the model
Model	Galaxy M33 (SM-M336BU/DS 128GB/8GB)	Galaxy 551 (GT-i5510M)
Other model names	Galaxy M33 5G SM-M336BU/Dual-SIM	Samsung Galaxy i5510M, Samsung Callisto
Country or region available	Bangladesh, India, Myanmar	(Latin America), Brazil
Brand	Samsung	Samsung
Release date	4/8/2022, Announced: 3/4/2022	11/1/2010
Depth	9.4 millimeters (0.37 inches)	15.2 millimeters (0.6 inches)
Size (width x height)	76.9 x 165.4 millimeters (3.03 x 6.51 in)	55 x 111 millimeters (2.17 x 4.37 in)
Weight	198 grams (6.93 ounces)	117 grams (4.1 ounces)
Build, materials	Plastic body, glass front	feature not registered
Protection against water and others	Not supported	Not supported
📲 Display
	Galaxy M33 (SM-M336BU/DS 128GB/8GB)	Galaxy 551 (GT-i5510M)
Display type	TFT PLS	TFT LCD
Screen size	6.6" inches	3.2" inches
Screen-to-body ratio	~82.5% (screen-to-body ratio)	~47.7% (screen-to-body ratio)
Display resolution	1080x2408 pixels (20:9)	240x400 pixels
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	400 PPI	146 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 5	Not supported
Refresh rate	120Hz	feature not registered
Display features	Not supported	feature not registered
🤖 Operating System
	Galaxy M33 (SM-M336BU/DS 128GB/8GB)	Galaxy 551 (GT-i5510M)
System version	Android 12	Android 2.2 Froyo
Firmware update	Android 15	Android 2.3.6 Gingerbread
User Interface	One UI 4 / 5 / 6 / 7	feature not registered
⚙️ Processor
	Galaxy M33 (SM-M336BU/DS 128GB/8GB)	Galaxy 551 (GT-i5510M)
Chipset	64bit: Samsung Exynos 1280 (5nm)	32bit: Qualcomm Snapdragon S1 MSM7227 (65nm)
CPU	Octa-core, 2 processors: 2x 2.4GHz ARM Cortex-A78 (Dual-core) 6x 2GHz ARM Cortex-A55 (Hexa-core)	Single-core, 1 processor: 1x 600MHz ARM1136EJ-S (Single-core)
GPU graphical controller	ARM Mali-G68 (1GHz)	Qualcomm Adreno 200
Performance (benchmark)	AnTuTu: 471844 (v10)	feature not registered
💽 Memory and storage
	Galaxy M33 (SM-M336BU/DS 128GB/8GB)	Galaxy 551 (GT-i5510M)
RAM memory	8GB LPDDR4X	512MB
Internal storage	128GB (101GB available) UFS 2.2	512MB (173MB available)
External storage	Until 1TB microSD, microSDXC (dedicated slot)	Until 32GB microSD, microSDHC (dedicated slot)
📶 Mobile networks
	Galaxy M33 (SM-M336BU/DS 128GB/8GB)	Galaxy 551 (GT-i5510M)
Dual-SIM	Dual-SIM Standby - Call active on one sim card (dedicated slot)	Not supported
SIM card	2 slots (Dual-SIM) nano-SIM (4FF)	1 slot (Single-SIM) Standard mini-SIM (2FF)
Maximum Download / Upload	2000/1024 Mbps	7.2 Mbps
Network technology	2G, 3G, 4G, 5G	2G, 3G
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 850/2100
Primary 4G network	LTE Cat16 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE	Not supported
Primary 5G network	SA/NSA/Sub6 (1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 78)	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6	CSD, GPRS, EDGE, UMTS, HSDPA, HSUPA
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 Cat16 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 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 M33 (SM-M336BU/DS 128GB/8GB)	Galaxy 551 (GT-i5510M)
Back camera (main camera)	(quad camera) 50 megapixels 5MP ultrawide f/2.2123° 2MP depth f/2.4 2MP macro f/2.4	3.1 megapixels
Main camera resolution	8160x6120 pixels	2048x1536 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	QVGA (320x240) 15 fps
Flash	LED flash	Not supported
Focal aperture	f/1.8 (aperture)	feature not registered
Focal length	feature not registered	feature not registered
Sensor size	feature not registered	feature not registered
Pixel size	feature not registered	feature not registered
Autofocus	PDAF: phase detection autofocus	Autofocus
Touch focus	Supported	Not supported
Image stabilization	EIS: Digital stabilization	Not supported
Zoom	Only digital zoom	Only digital zoom
Face/smile detection	Face detection, Smile detection	Not supported
BSI sensor	Supported	Not supported
HDR	HDR photo on both cameras	Not supported
Camera extras	4K@30fps 1080p@30fps	feature not registered
📸 Front camera
	Galaxy M33 (SM-M336BU/DS 128GB/8GB)	Galaxy 551 (GT-i5510M)
Front camera (secondary)	8 megapixels	Not supported
Front camera resolution	3264x2448 pixels	Not supported
Video recording (secondary)	Full HD (1920x1080)	Not supported
Front flash	Not supported	Not supported
Focal aperture	f/2.2 (aperture)	feature not registered
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 M33 (SM-M336BU/DS 128GB/8GB)	Galaxy 551 (GT-i5510M)
Loudspeaker	Mono sound (not stereo)	Supported
Active noise cancellation	2 microphones	Not supported
Radio	Not supported	FM (RDS)
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263, XviD, MKV	3GP, 3G2, MJPG, MP4, WMV, H.263
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, WAV, eAAC+
🔌 Connectivity
	Galaxy M33 (SM-M336BU/DS 128GB/8GB)	Galaxy 551 (GT-i5510M)
USB	USB 2.0 Type-C, USB OTG On-The-Go	MicroUSB 2.0
Audio output	3.5mm jack	3.5mm jack
TV output	USB Type-C (reversible)	Not supported
Bluetooth	5.1 + A2DP/LE	3.0 + A2DP
WiFi	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot	802.11 b/g/n [wifi4] (2.4GHz)
DLNA	Not supported	Supported
GPS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS	A-GPS, GeoTagging
NFC	Supported	Not supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Galaxy M33 (SM-M336BU/DS 128GB/8GB)	Galaxy 551 (GT-i5510M)
Sensors	Accelerometer Compass Face unlock 2D Fingerprint sensor (side-mounted) Gyroscope Virtual ambient light sensor Virtual proximity sensor	Accelerometer Compass Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Galaxy M33 (SM-M336BU/DS 128GB/8GB)	Galaxy 551 (GT-i5510M)
Battery type	Li-Ion: lithium-ion (Non removable)	Li-Ion: lithium-ion (Removable)
Battery capacity	6000 mAh	1200 mAh
Charger, watts	25W Wired fast charging 4.5W Reverse charging by cable	Wired charging
Inductive / wireless charging	Not supported	feature not registered
Talk time autonomy	44 hours (1.8 days)	5 hours
Standby	feature not registered	370 hours (15.4 days)
➕ Other features
	Galaxy M33 (SM-M336BU/DS 128GB/8GB)	Galaxy 551 (GT-i5510M)
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	Not supported
Ringtones	Polyphonic and customized	Polyphonic and customized
Web browser	HTML, XHTML, HTML5	HTML, XHTML, Flash player
Antenna	Internal antenna	Internal antenna
Qwerty physical keyboard	Not supported	Retractable QWERTY keyboard
Miscellaneous	• Colors: Blue, Green, Brown	• Colors: Black • 1GB microSD included • Samsung TouchWiz 3.0 • Java framework
☢️ Radiation rate
	Galaxy M33 (SM-M336BU/DS 128GB/8GB)	Galaxy 551 (GT-i5510M)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	feature not registered
SAR 2W/kg (Europe, UK, etc.)	1.042W/kg (head), 1.378W/kg (body)	feature not registered