Samsung Galaxy M55s (SM-M558B/DS 128GB) vs HMD Skyline (256GB/8GB)

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

2/2/2026 5:26 PM, updated: 2/2/2026 5:26 PM

Compare HMD Skyline X Samsung Galaxy M55s (SM-M558B/DS 128GB) 09Points

Specifications Compare Models Pictures

6.7"
AMOLED

1080x2400

50
MP

50mp

8GB
RAM

Octa-core

5000
mAh

(Non removable)

18Points HMD Skyline (256GB/8GB) Compare Samsung Galaxy M55s X

Specifications Compare Models Pictures

6.55"
POLED

1080x2400

108
MP

50mp

8GB
RAM

Octa-core

4600
mAh

(Removable)

What's the better phone? HMD Skyline (256GB/8GB)

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!

9 Advantages Samsung Galaxy M55s (SM-M558B/DS 128GB)	vs	18 Advantages HMD Skyline (256GB/8GB)
+180 grams (6.3 ounces)16% Lighter	vs	209 grams (7.32 ounces)
+7.8 millimeters (0.31 inches)14% Thinner	vs	8.9 millimeters (0.35 inches)
+Super AMOLEDAdvantage Super AMOLED display is brighter and more vivid	vs	P-OLED
+6.7"2% Larger screen	vs	6.55"
+1/1.56" inches7% The larger sensor camera lets you take photos with better depth.	vs	1/1.67" inches
+(front) 4K UHD (3840x2160)3 times More image quality for recording videos with the secondary camera	vs	(front) Full HD (1920x1080)
+(5G Sub6) 3000 Mbps50% Faster for surfing the internet and download files	vs	(5G SA/NSA) 2000 Mbps
+5000 mAh9% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use	vs	4600 mAh
+45W36% 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	33W
2.4GHz 64bit Octa-core (4nm)	vs	+2.4GHz 64bit Octa-core (4nm)3% More powerful processor, you can open your applications faster
8GB LPDDR4X	vs	+8GB LPDDR5Advantage This RAM type is better and more efficient.
128GB (105GB available)	vs	+256GB (222GB available)111% More internal storage for applications and files
Plastic body, glass front	vs	+Aluminum frame, glass front/backAdvantage More resistant material
Not supported	vs	+HDR10Advantage The HDR10 display provides vibrant colors and more details
120Hz	vs	+144Hz20% The display reproduces more frames per second because the frequency (Hertz) is higher, improves fluidity and tires your eyes less.
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) 108MP + 50MP + 13MP185% Higher resolution main camera
Only digital zoom	vs	+Digital and optical zoomAdvantage The zoom allows for better focus and approach to take pictures
Android 15	vs	+Android 16Advantage Android 16 is newer and safer
Not supported	vs	+BarometerAdvantage Sensors help you use the device
Li-Ion: lithium-ion (Non removable)	vs	+Li-Ion: lithium-ion (Removable)Advantage Removable battery can be replaced easily
Not supported	vs	+Qi2 wireless chargingAdvantage Wireless charging is another way to charge the battery.
2 slots (Dual-SIM) (hybrid slot/shares the same microSD slot)	vs	+1 slot (Single-SIM) + e-SIM (Eletronic) (dedicated slot)Advantage You can have more mobile carriers/operators on the same device.
Not supported	vs	+FMAdvantage The radio lets you listen to your songs and sports in general
802.11 a/b/g/n/ac/ax [wifi6]	vs	+802.11 a/b/g/n/ac/ax [wifi6E/6]Advantage WiFi 802.11 a/b/g/n/ac/ax [wifi6E/6] is newer and faster
Not supported	vs	+Gorilla Glass 3Advantage Protection against scratches on the screen lets you carry your phone with your keys
Not supported	vs	+IP54 certifiedAdvantage Protection against water allows you talk to your friends in the rain, for example

33 Common items in both devices

UFS 2.2

Until 1TB microSD, microSDXC

16 million

1080x2400 pixels

LED flash

PDAF: phase detection autofocus

OIS: Optical stabilization

+26 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 M55s (SM-M558B/DS 128GB)	HMD Skyline (256GB/8GB)
Change model		Choose the model
Model	Galaxy M55s (SM-M558B/DS 128GB)	Skyline (256GB/8GB)
Other model names	Galaxy M55s 5G SM-M558B/Dual-SIM	HMD Skyline (8GB RAM) TA-1600
Country or region available	Bangladesh, India	(Global, International)
Brand	Samsung	HMD
Release date	9/26/2024, Announced: 9/24/2024	7/19/2024, Announced: 7/18/2024
Depth	7.8 millimeters (0.31 inches)	8.9 millimeters (0.35 inches)
Size (width x height)	76.5 x 163.9 millimeters (3.01 x 6.45 in)	75.66 x 159.84 millimeters (2.98 x 6.29 in)
Weight	180 grams (6.3 ounces)	209 grams (7.32 ounces)
Build, materials	Plastic body, glass front	Aluminum frame, glass front/back
Protection against water and others	Not supported	IP54 certified: protection against dust and splashing
📲 Display
	Galaxy M55s (SM-M558B/DS 128GB)	HMD Skyline (256GB/8GB)
Display type	Super AMOLED	P-OLED
Screen size	6.7" inches	6.55" inches
Screen-to-body ratio	~86.4% (screen-to-body ratio)	~85.6% (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	16 million
Scratch-resistant glass	Not supported	Gorilla Glass 3
Refresh rate	120Hz	144Hz
Display features	Always-On Display	1000nits[peak] HDR10
🤖 Operating System
	Galaxy M55s (SM-M558B/DS 128GB)	HMD Skyline (256GB/8GB)
System version	Android 14	Android 14
Firmware update	Android 15	Android 16
User Interface	One UI 6.1 / 7.0	feature not registered
⚙️ Processor
	Galaxy M55s (SM-M558B/DS 128GB)	HMD Skyline (256GB/8GB)
Chipset	64bit: Qualcomm Snapdragon 7 Gen 1 (SM7450-AB) (4nm)	64bit: Qualcomm Snapdragon 7s Gen 2 (SM7435-AB) (4nm)
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, 2 processors: 4x 2.4GHz ARM Cortex-A78 (Quad-core) 4x 1.95GHz ARM Cortex-A55 (Quad-core)
GPU graphical controller	Qualcomm Adreno 644 (443MHz)	Qualcomm Adreno 710 (900MHz)
Performance (benchmark)	AnTuTu: 582102 (v10)	AnTuTu: 581402 (v10) Geekbench: 2899 (v6)
💽 Memory and storage
	Galaxy M55s (SM-M558B/DS 128GB)	HMD Skyline (256GB/8GB)
RAM memory	8GB LPDDR4X	8GB LPDDR5
Internal storage	128GB (105GB available) UFS 2.2	256GB (222GB available) UFS 2.2
External storage	Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)	Until 1TB microSD, microSDXC (dedicated slot)
📶 Mobile networks
	Galaxy M55s (SM-M558B/DS 128GB)	HMD Skyline (256GB/8GB)
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 (dedicated slot)
SIM card	2 slots (Dual-SIM) nano-SIM (4FF)	1 slot (Single-SIM) nano-SIM (4FF) + e-SIM
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 850/900/1700/1900/2100
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, 20, 25, 26, 28, 32, 66, 71) TD-LTE (38, 40, 41) 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	GSM 850/900/1800/1900
Secondary 3G network	UMTS 850/900/1700/1900/2100	UMTS 850/900/1700/1900/2100
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 Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 32, 66, 71) TD-LTE (38, 40, 41) 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, SA/NSA
📷 Camera
	Galaxy M55s (SM-M558B/DS 128GB)	HMD Skyline (256GB/8GB)
Back camera (main camera)	(triple camera) 50 megapixels 8MP ultrawide f/2.2123° 2MP macro f/2.4	(triple camera) 108 megapixels 50MP telephoto f/2.01/2.76"0.64µmPDAF2x-optical-zoom 13MP ultrawide f/2.51/3"1.12µm
Main camera resolution	8160x6120 pixels	12000x9000 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	4K UHD (3840x2160) 30 fps
Flash	LED flash	LED flash
Focal aperture	f/1.8 (aperture)	f/1.8 (aperture)
Focal length	feature not registered	feature not registered
Sensor size	1/1.56" inches	1/1.67" inches
Pixel size	1µm pixel	0.64µm 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	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 on both cameras
Camera extras	4K@30fps 1080p@30/60fps 720p@240fps (slow motion)	4K@30fps 1080p@30fps
📸 Front camera
	Galaxy M55s (SM-M558B/DS 128GB)	HMD Skyline (256GB/8GB)
Front camera (secondary)	50 megapixels	50 megapixels
Front camera resolution	8160x6120 pixels	8160x6120 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	feature not registered
Pixel size	feature not registered	feature not registered
🔉 Sound and multimedia
	Galaxy M55s (SM-M558B/DS 128GB)	HMD Skyline (256GB/8GB)
Loudspeaker	Stereo sound	Stereo sound with dual speakers OZO audio
Active noise cancellation	2 microphones	2 microphones
Radio	Not supported	FM
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 M55s (SM-M558B/DS 128GB)	HMD Skyline (256GB/8GB)
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	5.2 + 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 [wifi6E/6] (2.4GHz, 5GHz, 6GHz) + MIMO WiFi Direct, hotspot
DLNA	Not supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFC	Supported	Supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Galaxy M55s (SM-M558B/DS 128GB)	HMD Skyline (256GB/8GB)
Sensors	Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (under display) Gyroscope Proximity sensor	Accelerometer Ambient light sensor Barometer Compass Face unlock 2D Fingerprint sensor (side-mounted) Gyroscope Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Galaxy M55s (SM-M558B/DS 128GB)	HMD Skyline (256GB/8GB)
Battery type	Li-Ion: lithium-ion (Non removable)	Li-Ion: lithium-ion (Removable) HBA4633AA
Battery capacity	5000 mAh	4600 mAh
Charger, watts	45W Wired fast charging	33W Wired fast charging Reverse charging by cable USB Power Delivery 3.0
Inductive / wireless charging	Not supported	15W Qi2 wireless charging 5W Reverse wireless charging
Talk time autonomy	feature not registered	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	Galaxy M55s (SM-M558B/DS 128GB)	HMD Skyline (256GB/8GB)
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: Thunder Black, Coral Green	• Colors: Twisted Black, Blue Topaz, Neon Pink
☢️ Radiation rate
	Galaxy M55s (SM-M558B/DS 128GB)	HMD Skyline (256GB/8GB)
SAR 1.6W/kg (USA, Mexico, etc.)	0.93W/kg (head)	feature not registered
SAR 2W/kg (Europe, UK, etc.)	feature not registered	feature not registered