Samsung Galaxy A31 (SM-A315G/DS 128GB/6GB) vs Samsung Galaxy A51 5G (SM-A516B/DS)

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Side by side comparison between Samsung Galaxy A31 vs Samsung Galaxy A51 5G phones, differences, pros, cons and full specifications. What's the better?

9/28/2020 8:46 PM, updated: 11/21/2022 8:39 AM

Compare Samsung Galaxy A51 5G X Samsung Galaxy A31 (SM-A315G/DS 128GB/6GB) 05Points

Specifications Compare Models Pictures

6.4"
AMOLED

1080x2400

48
MP

20mp

6GB
RAM

Octa-core

5000
mAh

(Non removable)

13Points Samsung Galaxy A51 5G (SM-A516B/DS) Compare Samsung Galaxy A31 X

Specifications Compare Models Pictures

6.5"
AMOLED

1080x2400

48
MP

32mp

6GB
RAM

Octa-core

4500
mAh

(Non removable)

What's the better phone? Samsung Galaxy A51 5G (SM-A516B/DS)

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!

5 Advantages Samsung Galaxy A31 (SM-A315G/DS 128GB/6GB)	vs	13 Advantages Samsung Galaxy A51 5G (SM-A516B/DS)
+185 grams (6.48 ounces)1% Lighter	vs	187 grams (6.55 ounces)
+8.6 millimeters (0.34 inches)1% Thinner	vs	8.7 millimeters (0.34 inches)
+411 PPI1% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	405 PPI
+5000 mAh11% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use	vs	4500 mAh
+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)
2GHz 64bit Octa-core (12nm)	vs	+2.2GHz 64bit Octa-core (8nm)11% More powerful processor, you can open your applications faster
eMMC 5.1	vs	+UFS 2.1Advantage Fastest write and read storage.
Plastic body, glass front	vs	+Aluminum body, glass front, plastic backAdvantage More resistant material
6.4"	vs	+6.5"2% Larger screen
(quad camera) 48MP + 8MP + 5MP + 5MP	vs	+(quad camera) 48MP + 12MP + 5MP + 5MP6% Higher resolution main camera
(front) 20MP	vs	+(front) 32MP61% 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 11	vs	+Android 13Advantage Android 13 is newer and safer
4G LTE	vs	+5G SA/NSAAdvantage The 5G SA/NSA network is newer and faster
(4G LTE) 150 Mbps	vs	+(5G SA/NSA) 2000 Mbps12 times Faster for surfing the internet and download files
Not supported	vs	+ANT+Advantage Sensors help you use the device
Not supported	vs	+Gorilla Glass 3Advantage Protection against scratches on the screen lets you carry your phone with your keys

33 Common items in both devices

6GB LPDDR4X

128GB (104GB available) / 128GB (105GB available)

Until 1TB microSD, microSDXC

Super AMOLED

60Hz

16 million

1080x2400 pixels

+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 A31 (SM-A315G/DS 128GB/6GB)	Galaxy A51 5G (SM-A516B/DS)
Change model		Choose the model
Model	Galaxy A31 (SM-A315G/DS 128GB/6GB)	Galaxy A51 5G (SM-A516B/DS)
Other model names	Galaxy A31 SM-A315G/Dual-Sim NFC (128GB + 6GB RAM)	Galaxy A51 SM-A516B
Country or region available	Philippines, Hong Kong, Indonesia, Malaysia, Thailand, Taiwan, Vietnam	(Global, International)
Brand	Samsung	Samsung
Release date	4/27/2020, Announced: 3/24/2020	4/29/2020, Announced: 4/8/2020
Depth	8.6 millimeters (0.34 inches)	8.7 millimeters (0.34 inches)
Size (width x height)	73.1 x 159.3 millimeters (2.88 x 6.27 in)	73.6 x 158.9 millimeters (2.9 x 6.26 in)
Weight	185 grams (6.48 ounces)	187 grams (6.55 ounces)
Build, materials	Plastic body, glass front	Aluminum body, glass front, plastic back
Protection against water and others	Not supported	Not supported
📲 Display
	Galaxy A31 (SM-A315G/DS 128GB/6GB)	Galaxy A51 5G (SM-A516B/DS)
Display type	Super AMOLED	Super AMOLED
Screen size	6.4" inches	6.5" inches
Screen-to-body ratio	~84.9% (screen-to-body ratio)	~87.2% (screen-to-body ratio)
Display resolution	1080x2400 pixels (20:9)	1080x2400 pixels (20:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	411 PPI	405 PPI
Colors	16 million	16 million
Scratch-resistant glass	Not supported	Gorilla Glass 3
Refresh rate	60Hz	60Hz
Display features	Not supported	Always-On Display
🤖 Operating System
	Galaxy A31 (SM-A315G/DS 128GB/6GB)	Galaxy A51 5G (SM-A516B/DS)
System version	Android 10	Android 10
Firmware update	Android 11	Android 13
User Interface	One UI 2.5 / 3.1	One UI 2.5 / 3.1 / 4.1 / 5.0
⚙️ Processor
	Galaxy A31 (SM-A315G/DS 128GB/6GB)	Galaxy A51 5G (SM-A516B/DS)
Chipset	64bit: MediaTek Helio P65 (MT6768) (12nm)	64bit: Samsung Exynos 980 (8nm)
CPU	Octa-core, 2 processors: 2x 2GHz ARM Cortex-A75 (Dual-core) 6x 1.7GHz ARM Cortex-A55 (Hexa-core)	Octa-core, 2 processors: 2x 2.2GHz ARM Cortex-A77 (Dual-core) 6x 1.8GHz ARM Cortex-A55 (Hexa-core)
GPU graphical controller	ARM Mali-G52 MC2 (820MHz)	ARM Mali-G76 MP5 (728MHz)
Performance (benchmark)	feature not registered	AnTuTu: 316007 (v8) Geekbench: 1867(v5.1) GFXBench: 17fps (ES 3.1 onscreen)
💽 Memory and storage
	Galaxy A31 (SM-A315G/DS 128GB/6GB)	Galaxy A51 5G (SM-A516B/DS)
RAM memory	6GB LPDDR4X	6GB LPDDR4X
Internal storage	128GB (104GB available) eMMC 5.1	128GB (105GB available) UFS 2.1
External storage	Until 1TB microSD, microSDXC (dedicated slot)	Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)
📶 Mobile networks
	Galaxy A31 (SM-A315G/DS 128GB/6GB)	Galaxy A51 5G (SM-A516B/DS)
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) nano-SIM (4FF)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	150/50 Mbps	2000/200 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 850/900/1700/1900/2100	UMTS 850/900/1900/2100
Primary 4G network	LTE Cat4 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 28, 66) TD-LTE (38, 40, 41) VoLTE	LTE Cat12/13 (1, 3, 4, 5, 7, 8, 12, 20, 28) TD-LTE (38, 40, 41) VoLTE
Primary 5G network	Not supported	SA/NSA/Sub6 (41, 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
Secondary 2G network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Secondary 3G network	UMTS 850/900/1700/1900/2100	Not supported
Secondary 4G network	LTE Cat4 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 28, 66) TD-LTE (38, 40, 41) VoLTE	Not supported
Secondary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE	GPRS, EDGE
📷 Camera
	Galaxy A31 (SM-A315G/DS 128GB/6GB)	Galaxy A51 5G (SM-A516B/DS)
Back camera (main camera)	(quad camera) 48 megapixels 8MP ultrawide f/2.2123°1/4"1.12µm 5MP macro f/2.4 5MP depth f/2.4	(quad camera) 48 megapixels 12MP ultrawide f/2.213mm1.12µm 5MP telephoto f/2.440mm 5MP depth f/2.21/5.0"1.12µm
Main camera resolution	8000x6000 pixels	8000x6000 pixels
Video recording (primary)	Full HD (1920x1080) 30 fps	4K UHD (3840x2160) 30 fps
Flash	LED flash	LED flash
Focal aperture	f/2.0 (aperture)	f/2.0 (aperture)
Focal length	26mm lens	26mm lens
Sensor size	1/2" inches	1/2" inches
Pixel size	0.8µm pixel	0.8µm pixel
Autofocus	PDAF: phase detection autofocus	PDAF: phase detection autofocus
Touch focus	Supported	Supported
Image stabilization	EIS: Digital stabilization	EIS: Digital stabilization
Zoom	Only digital zoom	Only digital zoom
Face/smile detection	Face detection, Smile detection	Face detection, Smile detection
BSI sensor	Not supported	Not supported
HDR	HDR photo on both cameras	HDR photo on both cameras
Camera extras	feature not registered	feature not registered
📸 Front camera
	Galaxy A31 (SM-A315G/DS 128GB/6GB)	Galaxy A51 5G (SM-A516B/DS)
Front camera (secondary)	20 megapixels	32 megapixels
Front camera resolution	5184x3840 pixels	6528x4896 pixels
Video recording (secondary)	Full HD (1920x1080)	4K UHD (3840x2160)
Front flash	Not supported	Not supported
Focal aperture	f/2.2 (aperture)	f/2.2 (aperture)
Focal length	feature not registered	26mm lens
Sensor size	feature not registered	1/2.8" inches
Pixel size	feature not registered	0.8µm pixel
🔉 Sound and multimedia
	Galaxy A31 (SM-A315G/DS 128GB/6GB)	Galaxy A51 5G (SM-A516B/DS)
Loudspeaker	Mono sound (not stereo)	Supported
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	FM	FM (RDS)
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 A31 (SM-A315G/DS 128GB/6GB)	Galaxy A51 5G (SM-A516B/DS)
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	3.5mm jack
TV output	USB Type-C (reversible)	Not supported
Bluetooth	5.0 + A2DP/LE	5.0 + 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 [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot
DLNA	Not supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFC	Supported	Supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Galaxy A31 (SM-A315G/DS 128GB/6GB)	Galaxy A51 5G (SM-A516B/DS)
Sensors	Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (under display) Gyroscope Virtual proximity sensor	Accelerometer Ambient light sensor ANT+ Compass Face unlock Fingerprint sensor (under display) Gyroscope Hall effect Virtual proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Galaxy A31 (SM-A315G/DS 128GB/6GB)	Galaxy A51 5G (SM-A516B/DS)
Battery type	LiPo: li-ion polymer (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	5000 mAh	4500 mAh
Charger, watts	15W Wired fast charging	15W 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
	Galaxy A31 (SM-A315G/DS 128GB/6GB)	Galaxy A51 5G (SM-A516B/DS)
Call control	Voice dialing, Voice recorder, Voice commands	Voice dialing, Voice recorder
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: Prism Black, Prism Blue, Prism Red, Prism White	• Colors: Prism Cube Black, Prism Cube White, Prism Cube Pink
☢️ Radiation rate
	Galaxy A31 (SM-A315G/DS 128GB/6GB)	Galaxy A51 5G (SM-A516B/DS)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	feature not registered
SAR 2W/kg (Europe, UK, etc.)	0.488W/kg (head), 1.68W/kg (body)	0.496W/kg (head), 1.555W/kg (body)