Samsung Galaxy M55 (SM-M556B/DS 256GB/8GB) vs OnePlus 8 Pro (128GB)

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Side by side comparison between Samsung Galaxy M55 vs OnePlus 8 Pro phones, differences, pros, cons and full specifications. What's the better?

5/19/2025 9:09 AM, updated: 5/20/2025 7:30 AM

Compare OnePlus 8 Pro X Samsung Galaxy M55 (SM-M556B/DS 256GB/8GB) 12Points

Specifications Compare Models Pictures

6.7"
AMOLED

1080x2400

50
MP

50mp

8GB
RAM

Octa-core

5000
mAh

(Non removable)

17Points OnePlus 8 Pro (128GB) Compare Samsung Galaxy M55 X

Specifications Compare Models Pictures

6.78"
AMOLED

1440x3168

48
MP

16mp

8GB
RAM

Octa-core

4510
mAh

(Non removable)

What's the better phone? OnePlus 8 Pro (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!

12 Advantages Samsung Galaxy M55 (SM-M556B/DS 256GB/8GB)	vs	17 Advantages OnePlus 8 Pro (128GB)
+2.4GHz 64bit Octa-core (4nm)2% More powerful processor, you can open your applications faster	vs	2.84GHz 64bit Octa-core (7nm)
+256GB (233GB available)120% More internal storage for applications and files	vs	128GB (106GB available)
+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)9% Thinner	vs	8.5 millimeters (0.33 inches)
+(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 11
+(5G Sub6) 3000 Mbps50% Faster for surfing the internet and download files	vs	(5G SA/NSA) 2000 Mbps
+5000 mAh11% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use	vs	4510 mAh
+45W50% 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	30W
+5.2 + A2DP/LEAdvantage Bluetooth 5.2 + A2DP/LE is newer and faster	vs	5.1 + A2DP/LE
8GB LPDDR4X	vs	+8GB LPDDR5Advantage This RAM type is better and more efficient.
UFS 2.2	vs	+UFS 3.0Advantage Fastest write and read storage.
Plastic body, glass front	vs	+Aluminum frame, glass front/backAdvantage More resistant material
Not supported	vs	+HDR10+Advantage The HDR10+ display provides vibrant colors and more details
16 million	vs	+1 billion62 times More colors on the screen is better quality images and videos
1080x2400 pixels	vs	+1440x3168 pixels76% Higher resolution screen
393 PPI	vs	+513 PPI31% Crisper display of text, images and videos because it has more pixels per inch (ppi)
6.7"	vs	+6.78"1% Larger screen
(triple camera) 50MP + 8MP + 2MP	vs	+(quad camera) 48MP + 48MP + 8MP + 5MP82% Higher resolution main camera
LED flash	vs	+Dual-LED flashAdvantage The Dual-LED flash helps in dark places or in low light
Only digital zoom	vs	+Digital and optical zoomAdvantage The zoom allows for better focus and approach to take pictures
1/1.56" inches	vs	+1/1.43" inches9% The larger sensor camera lets you take photos with better depth.
Not supported	vs	+Qi wireless chargingAdvantage Wireless charging is another way to charge the battery.
Not supported	vs	+DLNAAdvantage With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.
USB 2.0 Type-C, USB OTG On-The-Go	vs	+USB 3.1 Type-C, USB OTG On-The-GoAdvantage Newer and faster USB version for transferring photos, mp3 or data.
Not supported	vs	+Gorilla GlassAdvantage 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

30 Common items in both devices

Super AMOLED / Fluid AMOLED

120Hz

PDAF: phase detection autofocus / LDAF/PDAF: laser/phase detection autofocus

OIS: Optical stabilization

BSI sensor

HDR photo on both cameras / HDR photo/video and HDR photo on front camera

f/1.8 (aperture)

+23 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 256GB/8GB)	OnePlus 8 Pro (128GB)
Change model		Choose the model
Model	Galaxy M55 (SM-M556B/DS 256GB/8GB)	OnePlus 8 Pro (128GB)
Other model names	Galaxy M55 5G SM-M556B/Dual-SIM	OnePlus 8 Pro 5G (128GB + 8GB RAM)
Country or region available	(Global, International), Brazil, Colombia, Mexico	(Global, International)
Brand	Samsung	OnePlus
Release date	3/28/2024	4/21/2020, Announced: 4/14/2020
Depth	7.8 millimeters (0.31 inches)	8.5 millimeters (0.33 inches)
Size (width x height)	76.5 x 163.9 millimeters (3.01 x 6.45 in)	74.3 x 165.3 millimeters (2.93 x 6.51 in)
Weight	180 grams (6.3 ounces)	199 grams (6.97 ounces)
Build, materials	Plastic body, glass front	Aluminum frame, glass front/back Back: Gorilla Glass 5
Protection against water and others	Not supported	IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant
📲 Display
	Galaxy M55 (SM-M556B/DS 256GB/8GB)	OnePlus 8 Pro (128GB)
Display type	Super AMOLED	Fluid AMOLED
Screen size	6.7" inches	6.78" inches
Screen-to-body ratio	~86.4% (screen-to-body ratio)	~91% (screen-to-body ratio)
Display resolution	1080x2400 pixels (20:9)	1440x3168 pixels (19.8:9)
Touchscreen	Capacitive Multitouch 10-points	Capacitive Multitouch 10-points
Pixel density (dot pitch)	393 PPI	513 PPI
Colors	16 million	1 billion
Scratch-resistant glass	Not supported	Gorilla Glass
Refresh rate	120Hz	120Hz
Display features	Always-On Display	1300nits[peak] HDR10+
🤖 Operating System
	Galaxy M55 (SM-M556B/DS 256GB/8GB)	OnePlus 8 Pro (128GB)
System version	Android 14	Android 10
Firmware update	Android 15	Android 11
User Interface	One UI 6.1 / 7.0	OxygenOS 10 / 11
⚙️ Processor
	Galaxy M55 (SM-M556B/DS 256GB/8GB)	OnePlus 8 Pro (128GB)
Chipset	64bit: Qualcomm Snapdragon 7 Gen 1 (SM7450-AB) (4nm)	64bit: Qualcomm Snapdragon 865 (SM8250) (7nm)
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 2.84GHz Kryo 585 (Single-core) 3x 2.42GHz Kryo 585 (Triple-core) 4x 1.8GHz Kryo 585 (Quad-core)
GPU graphical controller	Qualcomm Adreno 644 (443MHz)	Qualcomm Adreno 650 (250-587MHz)
Performance (benchmark)	AnTuTu: 582102 (v10)	AnTuTu: 573276 (v8) Geekbench: 3374 (v5.1) GFXBench: 24fps (ES 3.1 onscreen)
💽 Memory and storage
	Galaxy M55 (SM-M556B/DS 256GB/8GB)	OnePlus 8 Pro (128GB)
RAM memory	8GB LPDDR4X	8GB LPDDR5
Internal storage	256GB (233GB available) UFS 2.2	128GB (106GB available) UFS 3.0
External storage	Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)	Not supported
📶 Mobile networks
	Galaxy M55 (SM-M556B/DS 256GB/8GB)	OnePlus 8 Pro (128GB)
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 800/1900, GSM 850/900/1800/1900
Primary 3G network	UMTS 850/900/1700/1900/2100	CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 800/850/900/1700/1800/1900/2100
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 Cat18 VoLTE Europe model: LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66) TD-LTE (34, 38, 39, 40, 41, 42, 46) America model: LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 30, 66, 71) TD-LTE (34, 38, 39, 40, 41, 46, 48) India model: LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26) TD-LTE (34, 38, 39, 40, 41, 46) China model: LTE (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26) TD-LTE (34, 38, 39, 40, 41)
Primary 5G network	SA/NSA/Sub6 (1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78)	SA/NSA Europe model: (1, 3, 7, 28, 78) America model: (2, 5, 41, 66, 71) India model: (78) China model: (41, 78, 79)
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, TD-SCDMA, UMTS, TD-HSDPA, 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 800/850/900/1700/1800/1900/2100
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 Cat18 VoLTE
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
📷 Camera
	Galaxy M55 (SM-M556B/DS 256GB/8GB)	OnePlus 8 Pro (128GB)
Back camera (main camera)	(triple camera) 50 megapixels 8MP ultrawide f/2.2123° 2MP macro f/2.4	(quad camera) 48 megapixels 48MP ultrawide f/2.213mm1/2.0"0.8µmPDAF 8MP telephoto f/2.41/1.0µmPDAFOIS3x-optical-zoom 5MP depth f/2.4
Main camera resolution	8160x6120 pixels	8000x6000 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/1.8 (aperture)
Focal length	feature not registered	25mm (lens)
Sensor size	1/1.56" inches	1/1.43" inches
Pixel size	1µm pixel	1.12µm pixel
Autofocus	PDAF: phase detection autofocus	LDAF/PDAF: laser/phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	OIS: Optical stabilization	OIS: Optical stabilization
Zoom	Only digital zoom	Digital and optical 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 and HDR photo on front camera
Camera extras	4K@30fps 1080p@30/60fps 720p@240fps (slow motion)	1080p@240fps
📸 Front camera
	Galaxy M55 (SM-M556B/DS 256GB/8GB)	OnePlus 8 Pro (128GB)
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	feature not registered
Sensor size	feature not registered	1/3" inches
Pixel size	feature not registered	1µm pixel
🔉 Sound and multimedia
	Galaxy M55 (SM-M556B/DS 256GB/8GB)	OnePlus 8 Pro (128GB)
Loudspeaker	Stereo sound	Stereo sound Dolby Atmos
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.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 256GB/8GB)	OnePlus 8 Pro (128GB)
USB	USB 2.0 Type-C, USB OTG On-The-Go	USB 3.1 Type-C, USB OTG On-The-Go
Audio output	Type-C reversible connector	Type-C reversible connector
TV output	USB Type-C (reversible)	Not supported
Bluetooth	5.2 + A2DP/LE	5.1 + 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/ax [wifi6] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot
DLNA	Not supported	Supported
GPS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, SBAS
NFC	Supported	Supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Galaxy M55 (SM-M556B/DS 256GB/8GB)	OnePlus 8 Pro (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
	Galaxy M55 (SM-M556B/DS 256GB/8GB)	OnePlus 8 Pro (128GB)
Battery type	Li-Ion: lithium-ion (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	5000 mAh	4510 mAh
Charger, watts	45W Wired fast charging	30W (5V/6A) Wired fast charging
Inductive / wireless charging	Not supported	30W Qi wireless charging 3W Reverse wireless charging
Talk time autonomy	feature not registered	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	Galaxy M55 (SM-M556B/DS 256GB/8GB)	OnePlus 8 Pro (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: Dark Blue, Light Green	• Colors: Onyx Black, Glacial Green, Ultramarine Blue • Warp Charge 30T (50% 23min)
☢️ Radiation rate
	Galaxy M55 (SM-M556B/DS 256GB/8GB)	OnePlus 8 Pro (128GB)
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