Vivo NEX A vs Samsung Galaxy M55s (SM-M558B/DS 128GB)

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Side by side comparison between Vivo NEX A vs Samsung Galaxy M55s phones, differences, pros, cons and full specifications. What's the better?

5/20/2025 7:22 AM, updated: 5/20/2025 7:36 AM

Compare Samsung Galaxy M55s X Vivo NEX A 03Points

Specifications Compare Models Pictures

6.59"
AMOLED

1080x2316

12
MP

8mp

6GB
RAM

Octa-core

4000
mAh

(Non removable)

23Points Samsung Galaxy M55s (SM-M558B/DS 128GB) Compare Vivo NEX A 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? Samsung Galaxy M55s (SM-M558B/DS 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!

3 Advantages Vivo NEX A	vs	23 Advantages Samsung Galaxy M55s (SM-M558B/DS 128GB)
+Aluminum frame, glass front/backAdvantage More resistant material	vs	Plastic body, glass front
+Dual-LED flashAdvantage The Dual-LED flash helps in dark places or in low light	vs	LED flash
+3.5mm jackAdvantage Headsets with 3.5mm Jack size are more common and easy to find in stores	vs	Type-C reversible connector
2.2GHz 64bit Octa-core	vs	+2.4GHz 64bit Octa-core (4nm)18% More powerful processor, you can open your applications faster
6GB LPDDR4X	vs	+8GB LPDDR4X33% More RAM memory. Typically more responsive and better for multitasking.
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 millimeters (0.31 inches)	vs	+7.8 millimeters (0.31 inches)3% Thinner
60Hz	vs	+120Hz100% The display reproduces more frames per second because the frequency (Hertz) is higher, improves fluidity and tires your eyes less.
1080x2316 pixels	vs	+1080x2400 pixels4% Higher resolution screen
388 PPI	vs	+393 PPI1% Crisper display of text, images and videos because it has more pixels per inch (ppi)
6.59"	vs	+6.7"2% Larger screen
(dual camera) 12MP + 5MP	vs	+(triple camera) 50MP + 8MP + 2MP3 times Higher resolution main camera
Not supported	vs	+BSI sensorAdvantage The BSI sensor allows the entry of more light generating photos with more detail and brightness
1/2.55" inches	vs	+1/1.56" inches63% The larger sensor camera lets you take photos with better depth.
(front) 8MP	vs	+(front) 50MP5 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 9.0 Pie	vs	+Android 15Advantage Android 15 is newer and safer
4G LTE-A	vs	+5G Sub6Advantage The 5G Sub6 network is newer and faster
(4G LTE-A) 800 Mbps	vs	+(5G Sub6) 3000 Mbps3 times Faster for surfing the internet and download files
Not supported	vs	+Face unlock 2DAdvantage Sensors help you use the device
4000 mAh	vs	+5000 mAh25% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
22W	vs	+45W105% 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.
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
5.0 + A2DP/LE	vs	+5.2 + A2DP/LEAdvantage Bluetooth 5.2 + A2DP/LE is newer and faster
Not supported	vs	+NFCAdvantage NFC allows you to make payments by approach quickly and securely

26 Common items in both devices

128GB (108GB available) / 128GB (105GB available)

Super AMOLED

16 million

Only digital zoom

PDAF: phase detection autofocus

OIS (4-axis): Optical stabilization / OIS: Optical stabilization

HDR photo on both cameras

+19 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
	Vivo NEX A	Galaxy M55s (SM-M558B/DS 128GB)
Change model		Choose the model
Model	NEX A	Galaxy M55s (SM-M558B/DS 128GB)
Other model names	NEX 全面屏, BBK vivo NEX A 128GB + 6GB RAM	Galaxy M55s 5G SM-M558B/Dual-SIM
Country or region available	(Global, International), China	Bangladesh, India
Brand	Vivo	Samsung
Release date	6/1/2018	9/26/2024, Announced: 9/24/2024
Depth	8 millimeters (0.31 inches)	7.8 millimeters (0.31 inches)
Size (width x height)	77 x 162 millimeters (3.03 x 6.38 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	Aluminum frame, glass front/back	Plastic body, glass front
Protection against water and others	Not supported	Not supported
📲 Display
	Vivo NEX A	Galaxy M55s (SM-M558B/DS 128GB)
Display type	Super AMOLED	Super AMOLED
Screen size	6.59" inches	6.7" inches
Screen-to-body ratio	~86% (screen-to-body ratio)	~86.4% (screen-to-body ratio)
Display resolution	1080x2316 pixels	1080x2400 pixels (20:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch 10-points
Pixel density (dot pitch)	388 PPI	393 PPI
Colors	16 million	16 million
Scratch-resistant glass	Not supported	Not supported
Refresh rate	60Hz	120Hz
Display features	Not supported	Always-On Display
🤖 Operating System
	Vivo NEX A	Galaxy M55s (SM-M558B/DS 128GB)
System version	Android 8.1 Oreo	Android 14
Firmware update	Android 9.0 Pie	Android 15
User Interface	feature not registered	One UI 6.1 / 7.0
⚙️ Processor
	Vivo NEX A	Galaxy M55s (SM-M558B/DS 128GB)
Chipset	64bit: Qualcomm Snapdragon 710 SDM710 (10nm)	64bit: Qualcomm Snapdragon 7 Gen 1 (SM7450-AB) (4nm)
CPU	Octa-core, 2 processors: 2x 2.2GHz Kryo 360 Gold (Dual-core) 6x 1.7GHz Kryo 360 Silver (Hexa-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 616 500Mhz	Qualcomm Adreno 644 (443MHz)
Performance (benchmark)	feature not registered	AnTuTu: 582102 (v10)
💽 Memory and storage
	Vivo NEX A	Galaxy M55s (SM-M558B/DS 128GB)
RAM memory	6GB LPDDR4X	8GB LPDDR4X
Internal storage	128GB (108GB available)	128GB (105GB available) UFS 2.2
External storage	Not supported	Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)
📶 Mobile networks
	Vivo NEX A	Galaxy M55s (SM-M558B/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	800/150 Mbps	3000/1024 Mbps
Network technology	2G, 3G, 4G	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 800/1900, GSM 850/900/1800/1900	GSM 850/900/1800/1900
Primary 3G network	TD-SCDMA 1900/2000 UMTS 850/900/1700/1900/2100	UMTS 850/900/1700/1900/2100
Primary 4G network	LTE Cat15 (1, 2, 3, 4, 5, 8) TD-LTE (34, 38, 39, 40, 41)	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	Not supported	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, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A	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	Not supported	UMTS 850/900/1700/1900/2100
Secondary 4G network	Not supported	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	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6
📷 Camera
	Vivo NEX A	Galaxy M55s (SM-M558B/DS 128GB)
Back camera (main camera)	(dual camera) 12 megapixels 5MP depth f/2.4	(triple camera) 50 megapixels 8MP ultrawide f/2.2123° 2MP macro f/2.4
Main camera resolution	4000x3000 pixels	8160x6120 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	4K UHD (3840x2160) 30 fps
Flash	Dual-LED flash	LED flash
Focal aperture	f/1.8 (aperture)	f/1.8 (aperture)
Focal length	feature not registered	feature not registered
Sensor size	1/2.55" inches	1/1.56" inches
Pixel size	1.4µm pixel	1µm pixel
Autofocus	PDAF: phase detection autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	OIS (4-axis): 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	Not supported	Supported
HDR	HDR photo on both cameras	HDR photo on both cameras
Camera extras	feature not registered	4K@30fps 1080p@30/60fps 720p@240fps (slow motion)
📸 Front camera
	Vivo NEX A	Galaxy M55s (SM-M558B/DS 128GB)
Front camera (secondary)	8 megapixels	50 megapixels
Front camera resolution	3264x2448 pixels	8160x6120 pixels
Video recording (secondary)	Full HD (1920x1080)	4K UHD (3840x2160)
Front flash	Not supported	Not supported
Focal aperture	f/2.0 (aperture)	f/2.4 (aperture)
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
	Vivo NEX A	Galaxy M55s (SM-M558B/DS 128GB)
Loudspeaker	Supported	Stereo sound
Active noise cancellation	2 microphones or more	2 microphones
Radio	Not supported	Not supported
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263, DivX, XviD	MP4, H.265, H.264, H.263, XviD, MKV
Audio formats	MP3, OGG, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Vivo NEX A	Galaxy M55s (SM-M558B/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	3.5mm jack	Type-C reversible connector
TV output	Not supported	USB Type-C (reversible)
Bluetooth	5.0 + 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, BeiDou	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS
NFC	Not supported	Supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Vivo NEX A	Galaxy M55s (SM-M558B/DS 128GB)
Sensors	Accelerometer Ambient light sensor Compass Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor	Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (under display) Gyroscope Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Vivo NEX A	Galaxy M55s (SM-M558B/DS 128GB)
Battery type	Li-Ion: lithium-ion (Non removable)	Li-Ion: lithium-ion (Non removable)
Battery capacity	4000 mAh	5000 mAh
Charger, watts	22W 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
	Vivo NEX A	Galaxy M55s (SM-M558B/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: Black, Red • Funtouch OS 4 • 32-bit/192kHz audio • Pop-up front camera	• Colors: Thunder Black, Coral Green
☢️ Radiation rate
	Vivo NEX A	Galaxy M55s (SM-M558B/DS 128GB)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	0.93W/kg (head)
SAR 2W/kg (Europe, UK, etc.)	feature not registered	feature not registered