Asus Zenfone Zoom (ZX550 16GB) vs Samsung Galaxy M55 (SM-M556E/DS 128GB)

Share page: Facebook Twitter WhatsApp Share page:

Side by side comparison between Asus Zenfone Zoom (ZX550) vs Samsung Galaxy M55 phones, differences, pros, cons and full specifications. What's the better?

5/19/2025 11:06 AM, updated: 5/20/2025 7:29 AM

Compare Samsung Galaxy M55 X Asus Zenfone Zoom (ZX550 16GB) 07Points

Specifications Compare Models Pictures

5.5"
IPS

1080x1920

13
MP

5mp

2GB
RAM

Quad-core

3000
mAh

(Non removable)

27Points Samsung Galaxy M55 (SM-M556E/DS 128GB) Compare Asus Zenfone Zoom (ZX550) 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 M55 (SM-M556E/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!

7 Advantages Asus Zenfone Zoom (ZX550 16GB)	vs	27 Advantages Samsung Galaxy M55 (SM-M556E/DS 128GB)
+Aluminum frame, glass front, leather backAdvantage More resistant material	vs	Plastic body, glass front
+401 PPI2% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	393 PPI
+Dual-LED flashAdvantage The Dual-LED flash helps in dark places or in low light	vs	LED flash
+Digital and optical zoomAdvantage The zoom allows for better focus and approach to take pictures	vs	Only digital zoom
+2 slots (Dual-SIM) (dedicated slot)Advantage You can have more mobile carriers/operators on the same device.	vs	2 slots (Dual-SIM) (hybrid slot/shares the same microSD slot)
+3.5mm jackAdvantage Headsets with 3.5mm Jack size are more common and easy to find in stores	vs	Type-C reversible connector
+Gorilla Glass 3Advantage Protection against scratches on the screen lets you carry your phone with your keys	vs	Not supported
2.3GHz 64bit Quad-core	vs	+2.4GHz 64bit Octa-core (4nm)36% More powerful processor, you can open your applications faster
2GB LPDDR3	vs	+8GB LPDDR4X3 times More RAM memory. Typically more responsive and better for multitasking.
16GB (12GB available)	vs	+128GB (105GB available)8 times More internal storage for applications and files
Until 64GB microSD, microSDXC	vs	+Until 1TB microSD, microSDXC15 times More external storage for files using memory cards
185 grams (6.48 ounces)	vs	+180 grams (6.3 ounces)3% Lighter
12 millimeters (0.47 inches)	vs	+7.8 millimeters (0.31 inches)54% Thinner
TFT IPS LCD	vs	+Super AMOLEDAdvantage Super AMOLED display is brighter and more vivid
1080x1920 pixels	vs	+1080x2400 pixels25% Higher resolution screen
5.5"	vs	+6.7"22% Larger screen
(back) 13MP	vs	+(triple camera) 50MP + 8MP + 2MP4 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
HDR photo only main camera	vs	+HDR photo on both camerasAdvantage The HDR technology produced photos with more detail in dark areas
f/2.7 (aperture)	vs	+f/1.8 (aperture)50% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
(front) 5MP	vs	+(front) 50MP9 times Higher resolution secondary camera to take pictures and selfies
Full HD (1920x1080)	vs	+4K UHD (3840x2160)3 times More image quality for recording videos with the primary camera
(front) HD (1280x720)	vs	+(front) 4K UHD (3840x2160)8 times More image quality for recording videos with the secondary camera
Android 5.0.2 Lollipop	vs	+Android 15Advantage Android 15 is newer and safer
4G LTE	vs	+5G Sub6Advantage The 5G Sub6 network is newer and faster
(4G LTE) 150 Mbps	vs	+(5G Sub6) 3000 Mbps19 times Faster for surfing the internet and download files
Not supported	vs	+Face unlockAdvantage Sensors help you use the device
Not supported	vs	+Fingerprint sensor (under display)Advantage Sensors help you use the device
3000 mAh	vs	+5000 mAh67% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
Not supported	vs	+Active noise cancellationAdvantage More noise-canceling microphones allow for better quality in calls and audio for recorded videos
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
4.0 + A2DP	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
MicroUSB 2.0, USB OTG On-The-Go	vs	+Type-CAdvantage Reversible connector, you can stick in a USB-C cable any which way; either side is up.

17 Common items in both devices

16 million

LDAF: laser detection autofocus / PDAF: phase detection autofocus

OIS: Optical stabilization

Capacitive

Multitouch

Accelerometer

Ambient light sensor

+10 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
	Asus Zenfone Zoom (ZX550 16GB)	Galaxy M55 (SM-M556E/DS 128GB)
Change model		Choose the model
Model	Zenfone Zoom (ZX550 16GB)	Galaxy M55 (SM-M556E/DS 128GB)
Other model names	Asus Zenfone Zoom ZX550 (Dual-Sim), Asus ZX550	Galaxy M55 5G SM-M556E/Dual-SIM
Country or region available	(Global, International)	(Europe), Russia
Brand	Asus	Samsung
Release date	12/1/2015	3/28/2024
Depth	12 millimeters (0.47 inches)	7.8 millimeters (0.31 inches)
Size (width x height)	78.8 x 158.9 millimeters (3.1 x 6.26 in)	76.5 x 163.9 millimeters (3.01 x 6.45 in)
Weight	185 grams (6.48 ounces)	180 grams (6.3 ounces)
Build, materials	Aluminum frame, glass front, leather back	Plastic body, glass front
Protection against water and others	Not supported	Not supported
📲 Display
	Asus Zenfone Zoom (ZX550 16GB)	Galaxy M55 (SM-M556E/DS 128GB)
Display type	TFT IPS LCD	Super AMOLED
Screen size	5.5" inches	6.7" inches
Screen-to-body ratio	~66.6% (screen-to-body ratio)	~86.4% (screen-to-body ratio)
Display resolution	1080x1920 pixels	1080x2400 pixels (20:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch 10-points
Pixel density (dot pitch)	401 PPI	393 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 3	Not supported
Refresh rate	feature not registered	120Hz
Display features	feature not registered	Always-On Display
🤖 Operating System
	Asus Zenfone Zoom (ZX550 16GB)	Galaxy M55 (SM-M556E/DS 128GB)
System version	Android 5.0.2 Lollipop	Android 14
Firmware update	feature not registered	Android 15
User Interface	feature not registered	One UI 6.1 / 7.0
⚙️ Processor
	Asus Zenfone Zoom (ZX550 16GB)	Galaxy M55 (SM-M556E/DS 128GB)
Chipset	64bit: Intel Atom Z3580 (22nm)	64bit: Qualcomm Snapdragon 7 Gen 1 (SM7450-AB) (4nm)
CPU	Quad-core, 1 processor: 4x 2.3GHz Intel Silvermont (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	PowerVR G6430 MP4	Qualcomm Adreno 644 (443MHz)
Performance (benchmark)	feature not registered	AnTuTu: 582102 (v10)
💽 Memory and storage
	Asus Zenfone Zoom (ZX550 16GB)	Galaxy M55 (SM-M556E/DS 128GB)
RAM memory	2GB LPDDR3	8GB LPDDR4X
Internal storage	16GB (12GB available)	128GB (105GB available) UFS 2.2
External storage	Until 64GB microSD, microSDXC (dedicated slot)	Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)
📶 Mobile networks
	Asus Zenfone Zoom (ZX550 16GB)	Galaxy M55 (SM-M556E/DS 128GB)
Dual-SIM	Dual-SIM Standby - Call active on one sim card (dedicated slot)	Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot)
SIM card	2 slots (Dual-SIM) micro-SIM (3FF)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	150/50 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	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Primary 3G network	UMTS 850/900/1900/2100	UMTS 850/900/1700/1900/2100
Primary 4G network	LTE Cat4 (Bands 1, 2, 3, 4, 5, 7, 8, 9, 17, 18, 19, 20, 28, 29) TD-LTE (Bands 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, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE	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
	Asus Zenfone Zoom (ZX550 16GB)	Galaxy M55 (SM-M556E/DS 128GB)
Back camera (main camera)	13 megapixels	(triple camera) 50 megapixels 8MP ultrawide f/2.2123° 2MP macro f/2.4
Main camera resolution	4128x3096 pixels	8160x6120 pixels
Video recording (primary)	Full HD (1920x1080) 30 fps	4K UHD (3840x2160) 30 fps
Flash	Dual-LED flash	LED flash
Focal aperture	f/2.7 (aperture)	f/1.8 (aperture)
Focal length	28mm (lens)	feature not registered
Sensor size	feature not registered	1/1.56" inches
Pixel size	feature not registered	1µm pixel
Autofocus	LDAF: laser detection autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	OIS: Optical stabilization	OIS: Optical stabilization
Zoom	Digital and optical zoom	Only digital zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Not supported	Supported
HDR	HDR photo only main camera	HDR photo on both cameras
Camera extras	feature not registered	4K@30fps 1080p@30/60fps 720p@240fps (slow motion)
📸 Front camera
	Asus Zenfone Zoom (ZX550 16GB)	Galaxy M55 (SM-M556E/DS 128GB)
Front camera (secondary)	5 megapixels	50 megapixels
Front camera resolution	2560x1920 pixels	8160x6120 pixels
Video recording (secondary)	HD (1280x720)	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
	Asus Zenfone Zoom (ZX550 16GB)	Galaxy M55 (SM-M556E/DS 128GB)
Loudspeaker	Supported	Stereo sound
Active noise cancellation	Not supported	2 microphones
Radio	Not supported	Not supported
TV	Not supported	Not supported
Video formats	MP4, H.264, H.263	MP4, H.265, H.264, H.263, XviD, MKV
Audio formats	MP3, WAV, eAAC+	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Asus Zenfone Zoom (ZX550 16GB)	Galaxy M55 (SM-M556E/DS 128GB)
USB	MicroUSB 2.0, 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	4.0 + A2DP	5.2 + A2DP/LE
WiFi	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) 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	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS
NFC	Not supported	Supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Asus Zenfone Zoom (ZX550 16GB)	Galaxy M55 (SM-M556E/DS 128GB)
Sensors	Accelerometer Ambient light sensor Compass Gyroscope Proximity sensor	Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (under display) Gyroscope Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Asus Zenfone Zoom (ZX550 16GB)	Galaxy M55 (SM-M556E/DS 128GB)
Battery type	LiPo: li-ion polymer (Non removable)	Li-Ion: lithium-ion (Non removable)
Battery capacity	3000 mAh	5000 mAh
Charger, watts	Wired charging	45W Wired fast charging
Inductive / wireless charging	feature not registered	Not supported
Talk time autonomy	feature not registered	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	Asus Zenfone Zoom (ZX550 16GB)	Galaxy M55 (SM-M556E/DS 128GB)
Call control	Voice dialing, Voice recorder	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, White • Asus ZenUI • Hoya camera sensor • Laser autofocus camera (0.03 seconds) • 3x optical zoom camera • Dual tone flash • 5GB Asus Webstorage • Only one micro SIM card can connect to 3G/4G service at a time	• Colors: Dark Blue, Light Green
☢️ Radiation rate
	Asus Zenfone Zoom (ZX550 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)