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Samsung Galaxy A21s (SM-A217F/DS 64GB/6GB) vs Samsung Galaxy M55 (SM-M556B/DS 128GB)

Side by side comparison between Samsung Galaxy A21s vs Samsung Galaxy M55 phones, differences, pros, cons and full specifications. What's the better?

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Compare Samsung Galaxy M55 X Samsung Galaxy A21s (SM-A217F/DS 64GB/6GB) 04Points
6.5"
PLS

720x1600

48
MP

13mp

6GB
RAM

Octa-core

5000
mAh

(Non removable)

vs
27Points Samsung Galaxy M55 (SM-M556B/DS 128GB) Compare Samsung Galaxy A21s X
6.7"
AMOLED

1080x2400

50
MP

50mp

8GB
RAM

Octa-core

5000
mAh

(Non removable)

What's the better phone? Samsung Galaxy M55 (SM-M556B/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!

Galaxy A21s (SM-A217F/DS 64GB/6GB)} 4 Advantages Samsung Galaxy A21s (SM-A217F/DS 64GB/6GB) vs Galaxy M55 (SM-M556B/DS 128GB)} 27 Advantages Samsung Galaxy M55 (SM-M556B/DS 128GB)
+(quad camera) 48MP + 8MP + 2MP + 2MP1%
Higher resolution main camera
vs(triple camera) 50MP + 8MP + 2MP
+2 slots (Dual-SIM)
(dedicated slot)Advantage
You can have more mobile carriers/operators on the same device.
vs2 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
vsType-C reversible connector
+FMAdvantage
The radio lets you listen to your songs and sports in general
vsNot supported
2GHz 64bit Octa-core (8nm)vs+2.4GHz 64bit Octa-core (4nm)37%
More powerful processor, you can open your applications faster
6GB LPDDR4Xvs+8GB LPDDR4X33%
More RAM memory. Typically more responsive and better for multitasking.
64GB (48GB available)vs+128GB (105GB available)119%
More internal storage for applications and files
eMMC 5.1vs+UFS 2.2Advantage
Fastest write and read storage.
192 grams (6.72 ounces)vs+180 grams (6.3 ounces)7%
Lighter
8.9 millimeters (0.35 inches)vs+7.8 millimeters (0.31 inches)14%
Thinner
TFT PLSvs+Super AMOLEDAdvantage
Super AMOLED display is brighter and more vivid
60Hzvs+120Hz100%
The display reproduces more frames per second because the frequency (Hertz) is higher, improves fluidity and tires your eyes less.
720x1600 pixelsvs+1080x2400 pixels125%
Higher resolution screen
270 PPIvs+393 PPI46%
Crisper display of text, images and videos because it has more pixels per inch (ppi)
6.5"vs+6.7"3%
Larger screen
EIS: Digital stabilizationvs+OIS: Optical stabilizationAdvantage
Image stabilization prevents blurry photos and helps in recording motion video
Not supportedvs+BSI sensorAdvantage
The BSI sensor allows the entry of more light generating photos with more detail and brightness
1/2" inchesvs+1/1.56" inches28%
The larger sensor camera lets you take photos with better depth.
f/2.0 (aperture)vs+f/1.8 (aperture)11%
Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
(front) 13MPvs+(front) 50MP3 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) Full HD (1920x1080)vs+(front) 4K UHD (3840x2160)3 times
More image quality for recording videos with the secondary camera
Android 12vs+Android 15Advantage
Android 15 is newer and safer
4G LTE-Avs+5G Sub6Advantage
The 5G Sub6 network is newer and faster
(4G LTE-A) 300 Mbpsvs+(5G Sub6) 3000 Mbps9 times
Faster for surfing the internet and download files
Virtual ambient light sensorvs+Ambient light sensorAdvantage
Sensors help you use the device
15Wvs+45W2 times
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.
Mono sound (not stereo)vs+Stereo soundAdvantage
Better sound quality for listening to music or clearer hands-free calls
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/LEvs+5.2 + A2DP/LEAdvantage
Bluetooth 5.2 + A2DP/LE is newer and faster
Not supportedvs+NFCAdvantage
NFC allows you to make payments by approach quickly and securely

24 Common items in both devices
Until 512GB microSD, microSDXC / Until 1TB microSD, microSDXC
Plastic body, glass front
16 million
LED flash
Only digital zoom
PDAF: phase detection autofocus
HDR photo on both cameras
+17 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 Clear highlight

📱 Model features

Galaxy A21s (SM-A217F/DS 64GB/6GB)Galaxy M55 (SM-M556B/DS 128GB)
ModelGalaxy A21s (SM-A217F/DS 64GB/6GB)Galaxy M55 (SM-M556B/DS 128GB)
Other model namesGalaxy A21s SM-A217F/Dual-Sim (64GB + 6GB RAM)Galaxy M55 5G SM-M556B/Dual-SIM
Country or region availablePhilippinesIndiaIndonesiaMalaysiaMyanmarThailandVietnam
Philippines, India, Indonesia, Malaysia, Myanmar, Thailand, Vietnam
(Global, International)BangladeshMexico
(Global, International), Bangladesh, Mexico
BrandSamsungSamsung
Release date6/2/2020, Announced: 5/15/20203/28/2024
Depth8.9 millimeters (0.35 inches)7.8 millimeters (0.31 inches)
Size (width x height)75.3 x 163.7 millimeters (2.96 x 6.44 in)76.5 x 163.9 millimeters (3.01 x 6.45 in)
Weight192 grams (6.72 ounces)180 grams (6.3 ounces)
Build, materialsPlastic body, glass frontPlastic body, glass front
Protection against water and othersNot supportedNot supported

📲 Display

Galaxy A21s (SM-A217F/DS 64GB/6GB)Galaxy M55 (SM-M556B/DS 128GB)
Display typeTFT PLSSuper AMOLED
Screen size6.5" inches6.7" inches
Screen-to-body ratio~82.8% (screen-to-body ratio)~86.4% (screen-to-body ratio)
Display resolution720x1600 pixels (20:9)1080x2400 pixels (20:9)
TouchscreenCapacitive MultitouchCapacitive Multitouch 10-points
Pixel density (dot pitch)270 PPI393 PPI
Colors16 million16 million
Scratch-resistant glassNot supportedNot supported
Refresh rate60Hz120Hz
Display featuresNot supportedAlways-On Display

🤖 Operating System

Galaxy A21s (SM-A217F/DS 64GB/6GB)Galaxy M55 (SM-M556B/DS 128GB)
System versionAndroid 10Android 14
Firmware updateAndroid 12Android 15
User InterfaceOne UI 2.0 / 3.1 / 4.1One UI 6.1 / 7.0

⚙️ Processor

Galaxy A21s (SM-A217F/DS 64GB/6GB)Galaxy M55 (SM-M556B/DS 128GB)
Chipset64bit: Samsung Exynos 850 (8nm)64bit: Qualcomm Snapdragon 7 Gen 1 (SM7450-AB) (4nm)
CPUOcta-core, 1 processor:
8x 2GHz ARM Cortex-A55 (Octa-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 controllerARM Mali-G52 MP1Qualcomm Adreno 644 (443MHz)
Performance (benchmark)feature not registeredAnTuTu: 582102 (v10)

💽 Memory and storage

Galaxy A21s (SM-A217F/DS 64GB/6GB)Galaxy M55 (SM-M556B/DS 128GB)
RAM memory6GB LPDDR4X8GB LPDDR4X
Internal storage64GB (48GB available)
eMMC 5.1
128GB (105GB available)
UFS 2.2
External storageUntil 512GB microSD, microSDXC
(dedicated slot)
Until 1TB microSD, microSDXC
(hybrid slot/shares the same SIM-2 slot)

📶 Mobile networks

Galaxy A21s (SM-A217F/DS 64GB/6GB)Galaxy M55 (SM-M556B/DS 128GB)
Dual-SIMDual-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 card2 slots (Dual-SIM)
nano-SIM (4FF)
2 slots (Dual-SIM)
nano-SIM (4FF)
Maximum Download / Upload300/150 Mbps3000/1024 Mbps
Network technology2G, 3G, 4G2G, 3G, 4G, 5G
Frequency, bands Expand band details Collapse details
GSM MHz bandQuad-Band 850/900/1800/1900Quad-Band 850/900/1800/1900
Primary 2G networkGSM 850/900/1800/1900GSM 850/900/1800/1900
Primary 3G networkUMTS 850/900/1900/2100UMTS 850/900/1700/1900/2100
Primary 4G networkLTE Cat7/13 (1, 2, 3, 5, 7, 8, 20, 28)
TD-LTE (38, 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 networkNot supportedSA/NSA/Sub6 (1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78)
Primary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-AGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6
Secondary 2G networkGSM 850/900/1800/1900GSM 850/900/1800/1900
Secondary 3G networkUMTS 850/900/1900/2100UMTS 850/900/1700/1900/2100
Secondary 4G networkLTE Cat7/13 (1, 2, 3, 5, 7, 8, 20, 28)
TD-LTE (38, 40, 41)
LTE Cat18 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 25, 26, 28, 66)
TD-LTE (38, 40, 41)
VoLTE
Secondary data networkGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-AGPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6

📷 Camera

Galaxy A21s (SM-A217F/DS 64GB/6GB)Galaxy M55 (SM-M556B/DS 128GB)
Back camera (main camera)(quad camera)
48 megapixels
8MP ultrawide f/2.21/4"1.12µm123°
2MP macro f/2.4
2MP depth f/2.4
(triple camera)
50 megapixels
8MP ultrawide f/2.2123°
2MP macro f/2.4
Main camera resolution8000x6000 pixels8160x6120 pixels
Video recording (primary)Full HD (1920x1080) 30 fps4K UHD (3840x2160) 30 fps
FlashLED flashLED flash
Focal aperturef/2.0 (aperture)f/1.8 (aperture)
Focal length26mm (lens)feature not registered
Sensor size1/2" inches1/1.56" inches
Pixel size0.8µm pixel1µm pixel
AutofocusPDAF: phase detection autofocusPDAF: phase detection autofocus
Touch focusSupportedSupported
Image stabilizationEIS: Digital stabilizationOIS: Optical stabilization
ZoomOnly digital zoomOnly digital zoom
Face/smile detectionFace detection, Smile detectionFace detection, Smile detection
BSI sensorNot supportedSupported
HDRHDR photo on both camerasHDR photo on both cameras
Camera extrasfeature not registered4K@30fps
1080p@30/60fps
720p@240fps (slow motion)

📸 Front camera

Galaxy A21s (SM-A217F/DS 64GB/6GB)Galaxy M55 (SM-M556B/DS 128GB)
Front camera (secondary)13 megapixels50 megapixels
Front camera resolution4128x3096 pixels8160x6120 pixels
Video recording (secondary)Full HD (1920x1080)4K UHD (3840x2160)
Front flashNot supportedNot supported
Focal aperturef/2.2 (aperture)f/2.4 (aperture)
Focal lengthfeature not registeredfeature not registered
Sensor size1/3.1" inchesfeature not registered
Pixel size1.12µm pixelfeature not registered

🔉 Sound and multimedia

Galaxy A21s (SM-A217F/DS 64GB/6GB)Galaxy M55 (SM-M556B/DS 128GB)
LoudspeakerMono sound (not stereo)Stereo sound
Active noise cancellation2 microphones or more2 microphones
RadioFMNot supported
TVNot supportedNot supported
Video formatsMP4, H.265, H.264, H.263, XviD, MKVMP4, H.265, H.264, H.263, XviD, MKV
Audio formatsMP3, WAV, WMA, eAAC+, FLACMP3, WAV, WMA, eAAC+, FLAC

🔌 Connectivity

Galaxy A21s (SM-A217F/DS 64GB/6GB)Galaxy M55 (SM-M556B/DS 128GB)
USBUSB 2.0 Type-C reversible connectorUSB 2.0 Type-C, USB OTG On-The-Go
Audio output3.5mm jackType-C reversible connector
TV outputNot supportedUSB Type-C (reversible)
Bluetooth5.0 + A2DP/LE5.2 + A2DP/LE
WiFi802.11 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
DLNANot supportedNot supported
GPSA-GPS, GeoTagging, GLONASS, GALILEO, BeiDouA-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS
NFCNot supportedSupported
Infrared portNot supportedNot supported

🧭 Sensors

Galaxy A21s (SM-A217F/DS 64GB/6GB)Galaxy M55 (SM-M556B/DS 128GB)
SensorsAccelerometer
Compass
Face unlock
Fingerprint sensor (rear-mounted)
Gyroscope
Proximity sensor
Virtual ambient light sensor
Accelerometer
Ambient light sensor
Compass
Face unlock
Fingerprint sensor (under display)
Gyroscope
Proximity sensor
Vibrating alertSupportedSupported

🔋 Battery

Galaxy A21s (SM-A217F/DS 64GB/6GB)Galaxy M55 (SM-M556B/DS 128GB)
Battery typeLiPo: li-ion polymer (Non removable)Li-Ion: lithium-ion (Non removable)
Battery capacity5000 mAh5000 mAh
Charger, watts15W (9V/1.67A) Wired fast charging45W Wired fast charging
Inductive / wireless chargingNot supportedNot supported
Talk time autonomyfeature not registeredfeature not registered
Standbyfeature not registeredfeature not registered

➕ Other features

Galaxy A21s (SM-A217F/DS 64GB/6GB)Galaxy M55 (SM-M556B/DS 128GB)
Call controlVoice dialing, Voice recorder, Voice commandsVoice dialing, Voice recorder, Voice commands
MessagingSMS (T9), MMS, E-mail, Push mailSMS (T9), MMS, E-mail, Push mail
Hands-free callingSupportedSupported
Video callingSupportedSupported
RingtonesPolyphonic and customizedPolyphonic and customized
Web browserHTML, XHTML, HTML5HTML, XHTML, HTML5
AntennaInternal antennaInternal antenna
Qwerty physical keyboardNot supportedNot supported
Miscellaneous• Colors: Black, White, Blue, Red• Colors: Dark Blue, Light Green

☢️ Radiation rate

Galaxy A21s (SM-A217F/DS 64GB/6GB)Galaxy M55 (SM-M556B/DS 128GB)
SAR 1.6W/kg (USA, Mexico, etc.)feature not registered0.79W/kg (head), 1.09W/kg (body)
SAR 2W/kg (Europe, UK, etc.)0.422W/kg (head), 1.544W/kg (body)0.96W/kg (head), 0.98W/kg (body)
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