Realme GT 3 (256GB/16GB) vs Samsung Galaxy M55 (SM-M556E/DS 128GB)

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

5/19/2025 11:06 AM, updated: 6/6/2025 4:53 PM

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

Specifications Compare Models Pictures

6.74"
AMOLED

1240x2772

50
MP

16mp

16GB
RAM

Octa-core

4600
mAh

(Non removable)

11Points Samsung Galaxy M55 (SM-M556E/DS 128GB) Compare Realme GT 3 X

Specifications Compare Models Pictures

6.7"
AMOLED

1080x2400

50
MP

50mp

8GB
RAM

Octa-core

5000
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!

13 Advantages Realme GT 3 (256GB/16GB)	vs	11 Advantages Samsung Galaxy M55 (SM-M556E/DS 128GB)
+3.19GHz 64bit Octa-core (4nm)21% More powerful processor, you can open your applications faster	vs	2.4GHz 64bit Octa-core (4nm)
+16GB LPDDR5100% More RAM memory. Typically more responsive and better for multitasking.	vs	8GB LPDDR4X
+256GB (222GB available)111% More internal storage for applications and files	vs	128GB (105GB available)
+UFS 3.1Advantage Fastest write and read storage.	vs	UFS 2.2
+HDR10+Advantage The HDR10+ display provides vibrant colors and more details	vs	Not supported
+144Hz20% The display reproduces more frames per second because the frequency (Hertz) is higher, improves fluidity and tires your eyes less.	vs	120Hz
+1 billion62 times More colors on the screen is better quality images and videos	vs	16 million
+1240x2772 pixels33% Higher resolution screen	vs	1080x2400 pixels
+451 PPI15% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	393 PPI
+6.74"1% Larger screen	vs	6.7"
+Dual-LED flashAdvantage The Dual-LED flash helps in dark places or in low light	vs	LED flash
+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.	vs	45W
+5.3 + A2DP/LEAdvantage Bluetooth 5.3 + A2DP/LE is newer and faster	vs	5.2 + A2DP/LE
Not supported	vs	+Until 1TB microSD, microSDXCAdvantage More external storage for files using memory cards
199 grams (6.97 ounces)	vs	+180 grams (6.3 ounces)11% Lighter
8.9 millimeters (0.35 inches)	vs	+7.8 millimeters (0.31 inches)14% Thinner
AMOLED	vs	+Super AMOLEDAdvantage Super AMOLED display is brighter and more vivid
f/1.9 (aperture)	vs	+f/1.8 (aperture)6% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
(front) 16MP	vs	+(front) 50MP2 times Higher resolution secondary camera to take pictures and selfies
(front) Full HD (1920x1080)	vs	+(front) 4K UHD (3840x2160)3 times More image quality for recording videos with the secondary camera
Android 14	vs	+Android 15Advantage Android 15 is newer and safer
(5G SA/NSA) 2000 Mbps	vs	+(5G Sub6) 3000 Mbps50% Faster for surfing the internet and download files
4600 mAh	vs	+5000 mAh9% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
802.11 a/b/g/n/ac [wifi5]	vs	+802.11 a/b/g/n/ac/ax [wifi6]Advantage WiFi 802.11 a/b/g/n/ac/ax [wifi6] is newer and faster

31 Common items in both devices

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

(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
	Realme GT 3 (256GB/16GB)	Galaxy M55 (SM-M556E/DS 128GB)
Change model		Choose the model
Model	Realme GT 3 (256GB/16GB)	Galaxy M55 (SM-M556E/DS 128GB)
Other model names	Realme GT3 240W RMX3709	Galaxy M55 5G SM-M556E/Dual-SIM
Country or region available	(Global, International)	(Europe), Russia
Brand	Realme	Samsung
Release date	3/17/2023, Announced: 2/28/2023	3/28/2024
Depth	8.9 millimeters (0.35 inches)	7.8 millimeters (0.31 inches)
Size (width x height)	75.8 x 163.9 millimeters (2.98 x 6.45 in)	76.5 x 163.9 millimeters (3.01 x 6.45 in)
Weight	199 grams (6.97 ounces)	180 grams (6.3 ounces)
Build, materials	Plastic body, glass front/back Back: RGB light notification	Plastic body, glass front
Protection against water and others	Not supported	Not supported
📲 Display
	Realme GT 3 (256GB/16GB)	Galaxy M55 (SM-M556E/DS 128GB)
Display type	AMOLED	Super AMOLED
Screen size	6.74" inches	6.7" inches
Screen-to-body ratio	~87.9% (screen-to-body ratio)	~86.4% (screen-to-body ratio)
Display resolution	1240x2772 pixels (20:9)	1080x2400 pixels (20:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch 10-points
Pixel density (dot pitch)	451 PPI	393 PPI
Colors	1 billion	16 million
Scratch-resistant glass	Not supported	Not supported
Refresh rate	144Hz	120Hz
Display features	500nits[typ], 1400nits[peak] HDR10+ Touch Sampling Rate: 360Hz	Always-On Display
🤖 Operating System
	Realme GT 3 (256GB/16GB)	Galaxy M55 (SM-M556E/DS 128GB)
System version	Android 13	Android 14
Firmware update	Android 14	Android 15
User Interface	Realme UI 4.0 / 5.0	One UI 6.1 / 7.0
⚙️ Processor
	Realme GT 3 (256GB/16GB)	Galaxy M55 (SM-M556E/DS 128GB)
Chipset	64bit: Qualcomm Snapdragon 8+ Gen 1 (SM8475) (4nm)	64bit: Qualcomm Snapdragon 7 Gen 1 (SM7450-AB) (4nm)
CPU	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)	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)
GPU graphical controller	Qualcomm Adreno 730 (818MHz)	Qualcomm Adreno 644 (443MHz)
Performance (benchmark)	AnTuTu: 1074427 (v9) Geekbench: 3898 (v5.1), 3980 (v6) GFXBench: 59fps (ES 3.1 onscreen)	AnTuTu: 582102 (v10)
💽 Memory and storage
	Realme GT 3 (256GB/16GB)	Galaxy M55 (SM-M556E/DS 128GB)
RAM memory	16GB LPDDR5	8GB LPDDR4X
Internal storage	256GB (222GB available) UFS 3.1	128GB (105GB available) UFS 2.2
External storage	Not supported	Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)
📶 Mobile networks
	Realme GT 3 (256GB/16GB)	Galaxy M55 (SM-M556E/DS 128GB)
Dual-SIM	Dual-SIM Standby - Call active on one sim card	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	2000/1024 Mbps	3000/1024 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	CDMA 800, GSM 850/900/1800/1900	GSM 850/900/1800/1900
Primary 3G network	CDMA2000 1xEV-DO UMTS 800/850/900/1700/1900/2100	UMTS 850/900/1700/1900/2100
Primary 4G network	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)	LTE Cat18 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 25, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE
Primary 5G network	SA/NSA (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, 77, 78)
Primary data network	GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6
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 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)	LTE Cat18 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 25, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE
Secondary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6
📷 Camera
	Realme GT 3 (256GB/16GB)	Galaxy M55 (SM-M556E/DS 128GB)
Back camera (main camera)	(triple camera) 50 megapixels 8MP ultrawide f/2.216mm112°1/4"1.12µm 2MP microscope f/3.320mm	(triple camera) 50 megapixels 8MP ultrawide f/2.2123° 2MP macro f/2.4
Main camera resolution	8160x6120 pixels	8160x6120 pixels
Video recording (primary)	4K UHD (3840x2160) 60 fps	4K UHD (3840x2160) 30 fps
Flash	Dual-LED flash	LED flash
Focal aperture	f/1.9 (aperture)	f/1.8 (aperture)
Focal length	24mm (lens)	feature not registered
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@30/60fps 1080p@30/60fps Sony IMX890	4K@30fps 1080p@30/60fps 720p@240fps (slow motion)
📸 Front camera
	Realme GT 3 (256GB/16GB)	Galaxy M55 (SM-M556E/DS 128GB)
Front camera (secondary)	16 megapixels	50 megapixels
Front camera resolution	4608x3456 pixels	8160x6120 pixels
Video recording (secondary)	Full HD (1920x1080)	4K UHD (3840x2160)
Front flash	Not supported	Not supported
Focal aperture	f/2.5 (aperture)	f/2.4 (aperture)
Focal length	25mm (lens)	feature not registered
Sensor size	1/3.09" inches	feature not registered
Pixel size	1µm pixel	feature not registered
🔉 Sound and multimedia
	Realme GT 3 (256GB/16GB)	Galaxy M55 (SM-M556E/DS 128GB)
Loudspeaker	Stereo sound with dual speakers 24-bit/192kHz Dolby Atmos	Stereo sound
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
	Realme GT 3 (256GB/16GB)	Galaxy M55 (SM-M556E/DS 128GB)
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	5.3 + A2DP/LE	5.2 + 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/ax [wifi6] (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	Supported	Not supported
🧭 Sensors
	Realme GT 3 (256GB/16GB)	Galaxy M55 (SM-M556E/DS 128GB)
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
	Realme GT 3 (256GB/16GB)	Galaxy M55 (SM-M556E/DS 128GB)
Battery type	LiPo: li-ion polymer (Non removable)	Li-Ion: lithium-ion (Non removable)
Battery capacity	4600 mAh	5000 mAh
Charger, watts	240W Wired fast charging	45W 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
	Realme GT 3 (256GB/16GB)	Galaxy M55 (SM-M556E/DS 128GB)
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: Booster Black, Pulse White	• Colors: Dark Blue, Light Green
☢️ Radiation rate
	Realme GT 3 (256GB/16GB)	Galaxy M55 (SM-M556E/DS 128GB)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	feature not registered
SAR 2W/kg (Europe, UK, etc.)	feature not registered	0.81W/kg (head), 1.18W/kg (body)