Samsung Galaxy M55 (SM-M556B/DS 128GB) vs Realme GT 3 (256GB/16GB)

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Side by side comparison between Samsung Galaxy M55 vs Realme GT 3 phones, differences, pros, cons and full specifications. What's the better?

5/19/2025 11:15 AM, updated: 6/6/2025 4:53 PM

Compare Realme GT 3 X Samsung Galaxy M55 (SM-M556B/DS 128GB) 11Points

Specifications Compare Models Pictures

6.7"
AMOLED

1080x2400

50
MP

50mp

8GB
RAM

Octa-core

5000
mAh

(Non removable)

13Points Realme GT 3 (256GB/16GB) Compare Samsung Galaxy M55 X

Specifications Compare Models Pictures

6.74"
AMOLED

1240x2772

50
MP

16mp

16GB
RAM

Octa-core

4600
mAh

(Non removable)

What's the better phone? Realme GT 3 (256GB/16GB)

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!

11 Advantages Samsung Galaxy M55 (SM-M556B/DS 128GB)	vs	13 Advantages Realme GT 3 (256GB/16GB)
+Until 1TB microSD, microSDXCAdvantage More external storage for files using memory cards	vs	Not supported
+180 grams (6.3 ounces)11% Lighter	vs	199 grams (6.97 ounces)
+7.8 millimeters (0.31 inches)14% Thinner	vs	8.9 millimeters (0.35 inches)
+Super AMOLEDAdvantage Super AMOLED display is brighter and more vivid	vs	AMOLED
+f/1.8 (aperture)6% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.	vs	f/1.9 (aperture)
+(front) 50MP2 times Higher resolution secondary camera to take pictures and selfies	vs	(front) 16MP
+(front) 4K UHD (3840x2160)3 times More image quality for recording videos with the secondary camera	vs	(front) Full HD (1920x1080)
+Android 15Advantage Android 15 is newer and safer	vs	Android 14
+(5G Sub6) 3000 Mbps50% Faster for surfing the internet and download files	vs	(5G SA/NSA) 2000 Mbps
+5000 mAh9% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use	vs	4600 mAh
+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]
2.4GHz 64bit Octa-core (4nm)	vs	+3.19GHz 64bit Octa-core (4nm)21% More powerful processor, you can open your applications faster
8GB LPDDR4X	vs	+16GB LPDDR5100% More RAM memory. Typically more responsive and better for multitasking.
128GB (105GB available)	vs	+256GB (222GB available)111% More internal storage for applications and files
UFS 2.2	vs	+UFS 3.1Advantage Fastest write and read storage.
Not supported	vs	+HDR10+Advantage The HDR10+ display provides vibrant colors and more details
120Hz	vs	+144Hz20% The display reproduces more frames per second because the frequency (Hertz) is higher, improves fluidity and tires your eyes less.
16 million	vs	+1 billion62 times More colors on the screen is better quality images and videos
1080x2400 pixels	vs	+1240x2772 pixels33% Higher resolution screen
393 PPI	vs	+451 PPI15% Crisper display of text, images and videos because it has more pixels per inch (ppi)
6.7"	vs	+6.74"1% Larger screen
LED flash	vs	+Dual-LED flashAdvantage The Dual-LED flash helps in dark places or in low light
45W	vs	+240W4 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.
5.2 + A2DP/LE	vs	+5.3 + A2DP/LEAdvantage Bluetooth 5.3 + A2DP/LE is newer and faster

31 Common items in both devices

Plastic body, glass front / Plastic body, glass front/back

(triple camera) 50MP + 8MP + 2MP

Only digital zoom

PDAF: phase detection autofocus

OIS: Optical stabilization

BSI sensor

HDR photo on both cameras

+24 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 128GB)	Realme GT 3 (256GB/16GB)
Change model		Choose the model
Model	Galaxy M55 (SM-M556B/DS 128GB)	Realme GT 3 (256GB/16GB)
Other model names	Galaxy M55 5G SM-M556B/Dual-SIM	Realme GT3 240W RMX3709
Country or region available	(Global, International), Bangladesh, Mexico	(Global, International)
Brand	Samsung	Realme
Release date	3/28/2024	3/17/2023, Announced: 2/28/2023
Depth	7.8 millimeters (0.31 inches)	8.9 millimeters (0.35 inches)
Size (width x height)	76.5 x 163.9 millimeters (3.01 x 6.45 in)	75.8 x 163.9 millimeters (2.98 x 6.45 in)
Weight	180 grams (6.3 ounces)	199 grams (6.97 ounces)
Build, materials	Plastic body, glass front	Plastic body, glass front/back Back: RGB light notification
Protection against water and others	Not supported	Not supported
📲 Display
	Galaxy M55 (SM-M556B/DS 128GB)	Realme GT 3 (256GB/16GB)
Display type	Super AMOLED	AMOLED
Screen size	6.7" inches	6.74" inches
Screen-to-body ratio	~86.4% (screen-to-body ratio)	~87.9% (screen-to-body ratio)
Display resolution	1080x2400 pixels (20:9)	1240x2772 pixels (20:9)
Touchscreen	Capacitive Multitouch 10-points	Capacitive Multitouch
Pixel density (dot pitch)	393 PPI	451 PPI
Colors	16 million	1 billion
Scratch-resistant glass	Not supported	Not supported
Refresh rate	120Hz	144Hz
Display features	Always-On Display	500nits[typ], 1400nits[peak] HDR10+ Touch Sampling Rate: 360Hz
🤖 Operating System
	Galaxy M55 (SM-M556B/DS 128GB)	Realme GT 3 (256GB/16GB)
System version	Android 14	Android 13
Firmware update	Android 15	Android 14
User Interface	One UI 6.1 / 7.0	Realme UI 4.0 / 5.0
⚙️ Processor
	Galaxy M55 (SM-M556B/DS 128GB)	Realme GT 3 (256GB/16GB)
Chipset	64bit: Qualcomm Snapdragon 7 Gen 1 (SM7450-AB) (4nm)	64bit: Qualcomm Snapdragon 8+ Gen 1 (SM8475) (4nm)
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, 3 processors: 1x 3.19GHz ARM Cortex-X2 (Single-core) 3x 2.75GHz ARM Cortex-A710 (Triple-core) 4x 2GHz ARM Cortex-A510 (Quad-core)
GPU graphical controller	Qualcomm Adreno 644 (443MHz)	Qualcomm Adreno 730 (818MHz)
Performance (benchmark)	AnTuTu: 582102 (v10)	AnTuTu: 1074427 (v9) Geekbench: 3898 (v5.1), 3980 (v6) GFXBench: 59fps (ES 3.1 onscreen)
💽 Memory and storage
	Galaxy M55 (SM-M556B/DS 128GB)	Realme GT 3 (256GB/16GB)
RAM memory	8GB LPDDR4X	16GB LPDDR5
Internal storage	128GB (105GB available) UFS 2.2	256GB (222GB available) UFS 3.1
External storage	Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)	Not supported
📶 Mobile networks
	Galaxy M55 (SM-M556B/DS 128GB)	Realme GT 3 (256GB/16GB)
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
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	CDMA 800, GSM 850/900/1800/1900
Primary 3G network	UMTS 850/900/1700/1900/2100	CDMA2000 1xEV-DO UMTS 800/850/900/1700/1900/2100
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 Cat20 VoLTE Global version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 66) China/India version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 66) TD-LTE (34, 38, 39, 40, 41, 42)
Primary 5G network	SA/NSA/Sub6 (1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78)	SA/NSA (1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78)
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6	GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, 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 Cat20 VoLTE Global version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 66) China/India version: LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 66) TD-LTE (34, 38, 39, 40, 41, 42)
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 128GB)	Realme GT 3 (256GB/16GB)
Back camera (main camera)	(triple camera) 50 megapixels 8MP ultrawide f/2.2123° 2MP macro f/2.4	(triple camera) 50 megapixels 8MP ultrawide f/2.216mm112°1/4"1.12µm 2MP microscope f/3.320mm
Main camera resolution	8160x6120 pixels	8160x6120 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	4K UHD (3840x2160) 60 fps
Flash	LED flash	Dual-LED flash
Focal aperture	f/1.8 (aperture)	f/1.9 (aperture)
Focal length	feature not registered	24mm (lens)
Sensor size	1/1.56" inches	1/1.56" inches
Pixel size	1µm pixel	1µm 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 on both cameras
Camera extras	4K@30fps 1080p@30/60fps 720p@240fps (slow motion)	4K@30/60fps 1080p@30/60fps Sony IMX890
📸 Front camera
	Galaxy M55 (SM-M556B/DS 128GB)	Realme GT 3 (256GB/16GB)
Front camera (secondary)	50 megapixels	16 megapixels
Front camera resolution	8160x6120 pixels	4608x3456 pixels
Video recording (secondary)	4K UHD (3840x2160)	Full HD (1920x1080)
Front flash	Not supported	Not supported
Focal aperture	f/2.4 (aperture)	f/2.5 (aperture)
Focal length	feature not registered	25mm (lens)
Sensor size	feature not registered	1/3.09" inches
Pixel size	feature not registered	1µm pixel
🔉 Sound and multimedia
	Galaxy M55 (SM-M556B/DS 128GB)	Realme GT 3 (256GB/16GB)
Loudspeaker	Stereo sound	Stereo sound with dual speakers 24-bit/192kHz Dolby Atmos
Active noise cancellation	2 microphones	2 microphones
Radio	Not supported	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
	Galaxy M55 (SM-M556B/DS 128GB)	Realme GT 3 (256GB/16GB)
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	Type-C reversible connector
TV output	USB Type-C (reversible)	USB Type-C (reversible)
Bluetooth	5.2 + A2DP/LE	5.3 + 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, QZSS
NFC	Supported	Supported
Infrared port	Not supported	Supported
🧭 Sensors
	Galaxy M55 (SM-M556B/DS 128GB)	Realme GT 3 (256GB/16GB)
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 Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Galaxy M55 (SM-M556B/DS 128GB)	Realme GT 3 (256GB/16GB)
Battery type	Li-Ion: lithium-ion (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	5000 mAh	4600 mAh
Charger, watts	45W Wired fast charging	240W Wired fast charging
Inductive / wireless charging	Not supported	Not supported
Talk time autonomy	feature not registered	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	Galaxy M55 (SM-M556B/DS 128GB)	Realme GT 3 (256GB/16GB)
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: Booster Black, Pulse White
☢️ Radiation rate
	Galaxy M55 (SM-M556B/DS 128GB)	Realme GT 3 (256GB/16GB)
SAR 1.6W/kg (USA, Mexico, etc.)	0.79W/kg (head), 1.09W/kg (body)	feature not registered
SAR 2W/kg (Europe, UK, etc.)	0.96W/kg (head), 0.98W/kg (body)	feature not registered