Side-by-side technical data

Samsung Galaxy M21 vs Samsung Galaxy A51 5G

Comparison between Samsung Galaxy M21 and Samsung Galaxy A51 5G: camera, battery, fast charging, display, performance and colors, side by side. More phones from Samsung.

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Samsung

Galaxy M21

Samsung

Galaxy A51 5G

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The verdict

Your pick: Samsung Galaxy A51 5G, ahead on Design & display, Performance & hardware and Connectivity. Unless Camera or Battery & charging decides it for you.

Category
Category	Galaxy M21	Galaxy A51 5G
Design & display	6.3	6.8
Performance & hardware	3.4	4.4
Camera	5.3	4.4
Connectivity	5.5	6.2
Battery & charging	5.9	4.5

Which one is for you?

Samsung Galaxy M21, if you care about…

Battery Capacity: 6,000 mAh; against 4,500 mAh

Samsung Galaxy A51 5G, if you care about…

AnTuTu Score: 316,007; against 186,282
RAM Capacity: 8 GB; against 6 GB
Usable Surface: 87.2 %; against 84.2 %
Body Materials: Glass, Plastic, Aluminium Alloy; against Glass, Plastic

Specification comparison

Show differences only

Performance

Specification	Galaxy M21	Galaxy A51 5G
Processor Model	Samsung Exynos 9611	Samsung Exynos 980
Processor Process Size	10 nm	8 nm Best value
Graphics GPU	Mali-G72 MP3	Mali-G76 MP5
Storage Type	UFS 2.1	UFS 2.1
Maximum CPU Clock	2.3 GHz Best value	2.2 GHz
Maximum Storage Capacity	128 GB	128 GB
AnTuTu Score	186,282	316,007 Best value
Geekbench 6 Single-Core	—	861
Geekbench 6 Multi-Core	—	1,858
CPU Description	Octa-core processor with four Cortex-A73 cores at 2.3 GHz and four Cortex-A53 cores at 1.7 GHz.	Octa-core processor with 2 Cortex-A77 cores at 2.2 GHz and 6 Cortex-A55 cores at 1.8 GHz.
Processor Type	Octa-Core	Octa-Core
64-Bit Processor	Yes	Yes
RAM Capacity	6 GB	8 GB Best value
RAM Type	LPDDR4X	LPDDR4X
Expandable Storage	Yes	Yes
AnTuTu version	v8	v8

Design

Specification	Galaxy M21	Galaxy A51 5G
Body Colors	Black, Blue, Green	Black, White, Blue, Pink
Body Thickness	8.9 mm	8.7 mm Best value
Body Width	75.1 mm	73.6 mm
Body Height	159 mm	158.9 mm
Weight	188 g	187 g Best value
Usable Surface	84.2 %	87.2 % Best value
Body Materials	Glass, Plastic	Glass, Plastic, Aluminium Alloy Best value
Unfolded thickness	—	8.7 mm

Battery

Specification	Galaxy M21	Galaxy A51 5G
Battery Capacity	6,000 mAh Best value	4,500 mAh
Battery Type	Li-Polymer	Li-Polymer
Fast Charge Power	15 W	15 W
Battery Features	Fast Charging, Non-Removable, Rechargeable, Battery Level Indicator	Non-Removable, Fast Charging, Rechargeable, Battery Level Indicator

Display

Specification	Galaxy M21	Galaxy A51 5G
Display Aspect Ratio	19.5:9	20:9
Display Technology	Super AMOLED	Super AMOLED
Peak Display Brightness	420 nits	—
Display Diagonal	6.4″	6.5″ Best value
Display Horizontal Resolution	1,080 px	1,080 px
Display Vertical Resolution	2,340 px	2,400 px Best value
Display Pixel Density	403 ppi	405 ppi Best value
Display Refresh Rate	—	60 Hz
Touch Sampling Rate	—	120 Hz
Display Features	Gorilla Glass 3, Always-On Display, Capacitive Touch, Multi-Touch, Water Drop Notch, Frameless	Gorilla Glass 3, Hole-Punch Notch, Scratch Resistant, Capacitive Touch, Multi-Touch, Frameless, Always-On Display

Sensors

Specification	Galaxy M21	Galaxy A51 5G
Fingerprint Sensor Placement	Rear	Under Display

Sensor

Specification	Galaxy M21	Galaxy A51 5G
Sensor Features	Fingerprint Sensor, Accelerometer, Gyroscope, Proximity Sensor, Compass	Fingerprint Sensor, Accelerometer, Gyroscope, Proximity Sensor, Compass, Light Sensor

Software

Specification	Galaxy M21	Galaxy A51 5G
Operating System	Android 10	Android 13
OS Family	Android	Android
OS Version	10	13 Best value
OS Update Support	2 years	2 years
Google Services	Yes	Yes
Widevine L1	Yes	Yes

Connectivity

Specification	Galaxy M21	Galaxy A51 5G
SIM Configurations	Dual Nano-SIM, Dual SIM Dual Standby, Dual SIM	Dual Nano-SIM, Dual SIM Dual Standby
Cellular Bands	2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B850, 3G UMTS B900, 3G UMTS 1900, 3G UMTS 2100, 4G LTE B1, 4G LTE B3, 4G LTE B5, 4G LTE B7, 4G LTE B8, 4G LTE B20, 4G LTE B38, 4G LTE B40, 4G LTE B41	2G GSM 850, 2G GSM 900, 2G GSM 1800, 2G GSM 1900, 3G UMTS B1, 3G UMTS B2, 3G UMTS B3, 3G UMTS B5, 3G UMTS B8, 3G UMTS 2100, 4G LTE B1, 4G LTE B2, 4G LTE B3, 4G LTE B4, 4G LTE B5, 4G LTE B7, 4G LTE B8, 4G LTE B12, 4G LTE B13, 4G LTE B17, 4G LTE B20, 4G LTE B26, 4G LTE B28A, 4G LTE B28B, 4G LTE B38, 4G LTE B40, 4G LTE B41, 5G NR n41, 5G NR n78, 5G NR n79
Cellular Technologies	GSM, HSPA, UMTS, LTE, 2G, 3G, 4G	GSM, HSPA, LTE, 5G Best value
Wi-Fi Standards	Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)	Wi-Fi 802.11a/b/g/n/ac, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
Wi-Fi Features	Dual Band, Wi-Fi Direct, Wi-Fi Hotspot	Dual Band, Wi-Fi Hotspot, Wi-Fi Direct, Wi-Fi Display
Bluetooth Version	Bluetooth 5.0	Bluetooth 5.0
Bluetooth Profiles	A2DP, LE	A2DP, LE, AVRCP, DIP, HFP, HID, HSP, MAP, PAN, OPP, PBAP/PAB, HOGP
Navigation Systems	GPS, A-GPS, GLONASS, BeiDou, Galileo	GPS, A-GPS, GLONASS, BeiDou, Galileo
Connectivity Features	USB Charging, USB Mass Storage, USB OTG, USB Type-C, NFC, 3.5 mm Audio Jack, FM Radio, Computer Sync, OTA Sync, Tethering, VoLTE	3.5 mm Audio Jack, ANT+, NFC, FM Radio, USB Type-C, USB OTG, USB Charging, USB Mass Storage, Computer Sync, OTA Sync, Tethering, VoLTE
USB Version	USB 2.0	USB 2.0
SAR American Head	0.47 W/kg Best value	0.8 W/kg
SAR American Body	—	0.67 W/kg
SAR (EU) head	0.468 W/kg Best value	0.5 W/kg
SAR (EU) body	—	1.55 W/kg
Max. download speed	600 Mbps	2,550 Mbps Best value
Max. upload speed	150 Mbps	1,280 Mbps Best value

Audio

Specification	Galaxy M21	Galaxy A51 5G
Microphone Count	2	2
Audio Features	A2DP, LE, Loudspeaker	A2DP, LE, Loudspeaker, AVRCP, DIP, HFP, HID, HSP, MAP, PAN, OPP, PBAP/PAB, HOGP

Technical

Specification	Galaxy M21	Galaxy A51 5G
Model numbers	SM-M215F, SM-M215F/DS, SM-M215F/DSN	SM-A516F, SM-A516F/DSN, SM-A516N, SM-A516B/DS, SM-A516B, SM-A516U, SC-54A, SM-A516U1, SCG07, SM-A5160