Samsung Galaxy M55 (SM-M556B/DS 256GB/8GB) vs OnePlus 9 (LE2117 128GB)

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Side by side comparison between Samsung Galaxy M55 vs OnePlus 9 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 9 X Samsung Galaxy M55 (SM-M556B/DS 256GB/8GB) 13Points

Specifications Compare Models Pictures

6.7"
AMOLED

1080x2400

50
MP

50mp

8GB
RAM

Octa-core

5000
mAh

(Non removable)

15Points OnePlus 9 (LE2117 128GB) Compare Samsung Galaxy M55 X

Specifications Compare Models Pictures

6.55"
AMOLED

1080x2400

48
MP

16mp

8GB
RAM

Octa-core

4500
mAh

(Non removable)

What's the better phone? OnePlus 9 (LE2117 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!

13 Advantages Samsung Galaxy M55 (SM-M556B/DS 256GB/8GB)	vs	15 Advantages OnePlus 9 (LE2117 128GB)
+2.4GHz 64bit Octa-core (4nm)2% More powerful processor, you can open your applications faster	vs	2.84GHz 64bit Octa-core (5nm)
+256GB (233GB available)131% More internal storage for applications and files	vs	128GB (101GB available)
+Until 1TB microSD, microSDXCAdvantage More external storage for files using memory cards	vs	Not supported
+180 grams (6.3 ounces)7% Lighter	vs	192 grams (6.72 ounces)
+7.8 millimeters (0.31 inches)12% Thinner	vs	8.7 millimeters (0.34 inches)
+6.7"2% Larger screen	vs	6.55"
+OIS: Optical stabilizationAdvantage Image stabilization prevents blurry photos and helps in recording motion video	vs	EIS: Digital stabilization
+(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 13
+(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	4500 mAh
+2 slots (Dual-SIM) (hybrid slot/shares the same microSD slot)Advantage You can have more mobile carriers/operators on the same device.	vs	1 slot (Single-SIM)
8GB LPDDR4X	vs	+8GB LPDDR5Advantage This RAM type is better and more efficient.
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
16 million	vs	+1 billion62 times More colors on the screen is better quality images and videos
393 PPI	vs	+402 PPI2% Crisper display of text, images and videos because it has more pixels per inch (ppi)
(triple camera) 50MP + 8MP + 2MP	vs	+(triple camera) 48MP + 50MP + 2MP67% Higher resolution main camera
LED flash	vs	+Dual-LED flashAdvantage The Dual-LED flash helps in dark places or in low light
1/1.56" inches	vs	+1/1.43" inches9% The larger sensor camera lets you take photos with better depth.
4K UHD (3840x2160)	vs	+8K UHD (7680x4320)3 times More image quality for recording videos with the primary camera
45W	vs	+65W44% 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.
Not supported	vs	+Qi Wireless charging (Qi/WPC)Advantage 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 Glass 5Advantage 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

31 Common items in both devices

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

Super AMOLED / Fluid AMOLED

120Hz

1080x2400 pixels

Only digital zoom

PDAF: phase detection autofocus

BSI sensor

+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 256GB/8GB)	OnePlus 9 (LE2117 128GB)
Change model		Choose the model
Model	Galaxy M55 (SM-M556B/DS 256GB/8GB)	OnePlus 9 (LE2117 128GB)
Other model names	Galaxy M55 5G SM-M556B/Dual-SIM	OnePlus 9 5G LE2117 (T-Mobile), BBK Lemonade
Country or region available	(Global, International), Brazil, Colombia, Mexico	USA
Brand	Samsung	OnePlus
Release date	3/28/2024	3/26/2021, Announced: 3/23/2021
Depth	7.8 millimeters (0.31 inches)	8.7 millimeters (0.34 inches)
Size (width x height)	76.5 x 163.9 millimeters (3.01 x 6.45 in)	74.2 x 160 millimeters (2.92 x 6.3 in)
Weight	180 grams (6.3 ounces)	192 grams (6.72 ounces)
Build, materials	Plastic body, glass front	Plastic body, glass front/back
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 9 (LE2117 128GB)
Display type	Super AMOLED	Fluid AMOLED
Screen size	6.7" inches	6.55" inches
Screen-to-body ratio	~86.4% (screen-to-body ratio)	~87.2% (screen-to-body ratio)
Display resolution	1080x2400 pixels (20:9)	1080x2400 pixels (20:9)
Touchscreen	Capacitive Multitouch 10-points	Capacitive Multitouch
Pixel density (dot pitch)	393 PPI	402 PPI
Colors	16 million	1 billion
Scratch-resistant glass	Not supported	Gorilla Glass 5
Refresh rate	120Hz	120Hz
Display features	Always-On Display	1100nits[peak] HDR10+ Always-On Display
🤖 Operating System
	Galaxy M55 (SM-M556B/DS 256GB/8GB)	OnePlus 9 (LE2117 128GB)
System version	Android 14	Android 11
Firmware update	Android 15	Android 13
User Interface	One UI 6.1 / 7.0	OxygenOS 12 / 13
⚙️ Processor
	Galaxy M55 (SM-M556B/DS 256GB/8GB)	OnePlus 9 (LE2117 128GB)
Chipset	64bit: Qualcomm Snapdragon 7 Gen 1 (SM7450-AB) (4nm)	64bit: Qualcomm Snapdragon 888 (SM8350) (5nm)
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 680 (Single-core) 3x 2.42GHz Kryo 680 (Triple-core) 4x 1.8GHz Kryo 680 (Quad-core)
GPU graphical controller	Qualcomm Adreno 644 (443MHz)	Qualcomm Adreno 660 (840MHz)
Performance (benchmark)	AnTuTu: 582102 (v10)	feature not registered
💽 Memory and storage
	Galaxy M55 (SM-M556B/DS 256GB/8GB)	OnePlus 9 (LE2117 128GB)
RAM memory	8GB LPDDR4X	8GB LPDDR5
Internal storage	256GB (233GB available) UFS 2.2	128GB (101GB 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 256GB/8GB)	OnePlus 9 (LE2117 128GB)
Dual-SIM	Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot)	Not supported
SIM card	2 slots (Dual-SIM) nano-SIM (4FF)	1 slot (Single-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	GSM 850/900/1800/1900
Primary 3G network	UMTS 850/900/1700/1900/2100	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 Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 30, 32, 66, 71) TD-LTE (38, 39, 40, 41, 46, 48) VoLTE
Primary 5G network	SA/NSA/Sub6 (1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78)	SA/NSA (1, 2, 3, 5, 7, 8, 20, 25, 28, 38, 40, 41, 48, 66, 71, 77, 78)
Primary 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
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 Cat18 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 25, 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 M55 (SM-M556B/DS 256GB/8GB)	OnePlus 9 (LE2117 128GB)
Back camera (main camera)	(triple camera) 50 megapixels 8MP ultrawide f/2.2123° 2MP macro f/2.4	(triple camera) 48 megapixels 50MP ultrawide f/2.214mm1/1.56"1.0µmAF 2MP monochrome f/2.4
Main camera resolution	8160x6120 pixels	8000x6000 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	8K UHD (7680x4320) 30 fps
Flash	LED flash	Dual-LED flash
Focal aperture	f/1.8 (aperture)	f/1.8 (aperture)
Focal length	feature not registered	23mm (lens)
Sensor size	1/1.56" inches	1/1.43" inches
Pixel size	1µm pixel	1.12µm pixel
Autofocus	PDAF: phase detection autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	OIS: Optical stabilization	EIS: Digital 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/video on both cameras
Camera extras	4K@30fps 1080p@30/60fps 720p@240fps (slow motion)	4K@30/60fps 1080p@30/60/240fps Hasselblad Color Calibration Sony IMX689, IMX766. IMX471 sensor
📸 Front camera
	Galaxy M55 (SM-M556B/DS 256GB/8GB)	OnePlus 9 (LE2117 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/2.4 (aperture)
Focal length	feature not registered	feature not registered
Sensor size	feature not registered	1/3.06" inches
Pixel size	feature not registered	1µm pixel
🔉 Sound and multimedia
	Galaxy M55 (SM-M556B/DS 256GB/8GB)	OnePlus 9 (LE2117 128GB)
Loudspeaker	Stereo sound	Stereo sound with dual speakers 24-bit/192kHz 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 9 (LE2117 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)	USB Type-C (reversible)
Bluetooth	5.2 + A2DP/LE	5.2 + 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 9 (LE2117 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 9 (LE2117 128GB)
Battery type	Li-Ion: lithium-ion (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	5000 mAh	4500 mAh
Charger, watts	45W Wired fast charging	65W (10V/6.5A) Wired fast charging USB Power Delivery 1.0
Inductive / wireless charging	Not supported	15W Qi Wireless charging (Qi/WPC)
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 9 (LE2117 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: Astral Black, Arctic Sky, Winter Mist
☢️ Radiation rate
	Galaxy M55 (SM-M556B/DS 256GB/8GB)	OnePlus 9 (LE2117 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