Samsung Galaxy A51 (SM-A515F/DSM 128GB) vs Samsung Galaxy A5 2017 (SM-A520F)

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Side by side comparison between Samsung Galaxy A51 vs Samsung Galaxy A5 (2017) phones, differences, pros, cons and full specifications. What's the better?

1/4/2020 4:27 PM, updated: 11/21/2022 8:39 AM

Compare Samsung Galaxy A5 (2017) X Samsung Galaxy A51 (SM-A515F/DSM 128GB) 17Points

Specifications Compare Models Pictures

6.5"
AMOLED

1080x2400

48
MP

32mp

6GB
RAM

Octa-core

4000
mAh

(Non removable)

09Points Samsung Galaxy A5 2017 (SM-A520F) Compare Samsung Galaxy A51 X

Specifications Compare Models Pictures

5.2"
AMOLED

1080x1920

16
MP

16mp

3GB
RAM

Octa-core

3000
mAh

(Non removable)

What's the better phone? Samsung Galaxy A51 (SM-A515F/DSM 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!

17 Advantages Samsung Galaxy A51 (SM-A515F/DSM 128GB)	vs	9 Advantages Samsung Galaxy A5 2017 (SM-A520F)
+2.3GHz 64bit Octa-core (10nm)18% More powerful processor, you can open your applications faster	vs	1.9GHz 64bit Octa-core
+6GB LPDDR4X100% More RAM memory. Typically more responsive and better for multitasking.	vs	3GB LPDDR4
+128GB (107GB available)4 times More internal storage for applications and files	vs	32GB (22GB available)
+Until 1TB microSD, microSDXC3 times More external storage for files using memory cards	vs	Until 256GB microSD, microSDXC
+1080x2400 pixels25% Higher resolution screen	vs	1080x1920 pixels
+6.5"25% Larger screen	vs	5.2"
+(quad camera) 48MP + 12MP + 5MP + 5MP3 times Higher resolution main camera	vs	(back) 16MP
+HDR photo on both camerasAdvantage The HDR technology produced photos with more detail in dark areas	vs	HDR photo only main camera
+(front) 32MP101% Higher resolution secondary camera to take pictures and selfies	vs	(front) 16MP
+4K UHD (3840x2160)3 times More image quality for recording videos with the primary camera	vs	Full HD (1920x1080)
+(front) 4K UHD (3840x2160)3 times More image quality for recording videos with the secondary camera	vs	(front) Full HD (1920x1080)
+Android 13Advantage Android 13 is newer and safer	vs	Android 8.0 Oreo
+(4G LTE-A) 600 Mbps100% Faster for surfing the internet and download files	vs	(4G LTE-A) 300 Mbps
+Face unlockAdvantage Sensors help you use the device	vs	Not supported
+4000 mAh33% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use	vs	3000 mAh
+2 slots (Dual-SIM) (dedicated slot)Advantage You can have more mobile carriers/operators on the same device.	vs	1 slot (Single-SIM) (dedicated slot)
+5.0 + A2DP/LEAdvantage Bluetooth 5.0 + A2DP/LE is newer and faster	vs	4.2 + A2DP
172 grams (6.02 ounces)	vs	+157 grams (5.5 ounces)10% Lighter
Plastic body, glass front	vs	+Aluminum frame, glass front/backAdvantage More resistant material
405 PPI	vs	+424 PPI5% Crisper display of text, images and videos because it has more pixels per inch (ppi)
f/2.0 (aperture)	vs	+f/1.9 (aperture)5% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
Not supported	vs	+BarometerAdvantage Sensors help you use the device
Virtual proximity sensor	vs	+Proximity sensorAdvantage Sensors help you use the device
15W	vs	+18W20% 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.
Not supported	vs	+NFCAdvantage NFC allows you to make payments by approach quickly and securely
Not supported	vs	+IP68 certifiedAdvantage Protection against water allows you talk to your friends in the rain, for example

30 Common items in both devices

eMMC 5.1

7.9 millimeters (0.31 inches)

Super AMOLED

60Hz

16 million

LED flash

Only digital zoom

+23 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 A51 (SM-A515F/DSM 128GB)	Galaxy A5 2017 (SM-A520F)
Change model		Choose the model
Model	Galaxy A51 (SM-A515F/DSM 128GB)	Galaxy A5 2017 (SM-A520F)
Other model names	Samsung Galaxy A51 SM-A515F/DSM	Galaxy A5 (2017) SM-A520F (Single-Sim)
Country or region available	Kazakhstan, Russia	(Europe)
Brand	Samsung	Samsung
Release date	12/16/2019, Announced: 12/12/2019	1/13/2017
Depth	7.9 millimeters (0.31 inches)	7.9 millimeters (0.31 inches)
Size (width x height)	73.6 x 158.5 millimeters (2.9 x 6.24 in)	71.4 x 146.1 millimeters (2.81 x 5.75 in)
Weight	172 grams (6.02 ounces)	157 grams (5.5 ounces)
Build, materials	Plastic body, glass front	Aluminum frame, glass front/back
Protection against water and others	Not supported	IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant
📲 Display
	Galaxy A51 (SM-A515F/DSM 128GB)	Galaxy A5 2017 (SM-A520F)
Display type	Super AMOLED	Super AMOLED
Screen size	6.5" inches	5.2" inches
Screen-to-body ratio	~87.4% (screen-to-body ratio)	~71.5% (screen-to-body ratio)
Display resolution	1080x2400 pixels (20:9)	1080x1920 pixels (16:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	405 PPI	424 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 3	Gorilla Glass 3
Refresh rate	60Hz	60Hz
Display features	Always-On Display	Not supported
🤖 Operating System
	Galaxy A51 (SM-A515F/DSM 128GB)	Galaxy A5 2017 (SM-A520F)
System version	Android 10	Android 6.0.1 Marshmallow
Firmware update	Android 13	Android 8.0 Oreo
User Interface	One UI 2.5 / 3.1 / 4.1 / 5.0	feature not registered
⚙️ Processor
	Galaxy A51 (SM-A515F/DSM 128GB)	Galaxy A5 2017 (SM-A520F)
Chipset	64bit: Samsung Exynos 9611 (10nm)	64bit: Samsung Exynos 7 Octa 7880 (14nm)
CPU	Octa-core, 2 processors: 4x 2.3GHz ARM Cortex-A73 (Quad-core) 4x 1.7GHz ARM Cortex-A53 (Quad-core)	Octa-core, 1 processor: 8x 1.9GHz ARM Cortex-A53 (Octa-core)
GPU graphical controller	ARM Mali-G72 MP3 (850MHz)	ARM Mali-T830 MP3
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	Galaxy A51 (SM-A515F/DSM 128GB)	Galaxy A5 2017 (SM-A520F)
RAM memory	6GB LPDDR4X	3GB LPDDR4
Internal storage	128GB (107GB available) eMMC 5.1	32GB (22GB available) eMMC 5.1
External storage	Until 1TB microSD, microSDXC (dedicated slot)	Until 256GB microSD, microSDXC (dedicated slot)
📶 Mobile networks
	Galaxy A51 (SM-A515F/DSM 128GB)	Galaxy A5 2017 (SM-A520F)
Dual-SIM	Dual-SIM Standby - Call active on one sim card (dedicated slot)	Not supported
SIM card	2 slots (Dual-SIM) nano-SIM (4FF)	1 slot (Single-SIM) nano-SIM (4FF)
Maximum Download / Upload	600/150 Mbps	300/50 Mbps
Network technology	2G, 3G, 4G	2G, 3G, 4G
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 Cat12/13 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE	LTE Cat6 (Bands 1, 2, 3, 4, 5, 7, 8, 17, 20, 28) TD-LTE (Bands 38, 40, 41)
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
Secondary 2G network	GSM 850/900/1800/1900	Not supported
Secondary 3G network	Not supported	Not supported
Secondary 4G network	Not supported	Not supported
Secondary data network	GPRS, EDGE	Not supported
📷 Camera
	Galaxy A51 (SM-A515F/DSM 128GB)	Galaxy A5 2017 (SM-A520F)
Back camera (main camera)	(quad camera) 48 megapixels 12MP ultrawide f/2.213mm1.12µm 5MP telephoto f/2.440mm 5MP depth f/2.21/5.0"1.12µm	16 megapixels
Main camera resolution	8000x6000 pixels	4608x3456 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	Full HD (1920x1080) 30 fps
Flash	LED flash	LED flash
Focal aperture	f/2.0 (aperture)	f/1.9 (aperture)
Focal length	26mm (lens)	27mm (lens)
Sensor size	1/2" inches	feature not registered
Pixel size	0.8µm pixel	feature not registered
Autofocus	PDAF: phase detection autofocus	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 only main camera
Camera extras	feature not registered	feature not registered
📸 Front camera
	Galaxy A51 (SM-A515F/DSM 128GB)	Galaxy A5 2017 (SM-A520F)
Front camera (secondary)	32 megapixels	16 megapixels
Front camera resolution	6528x4896 pixels	4608x3456 pixels
Video recording (secondary)	4K UHD (3840x2160)	Full HD (1920x1080)
Front flash	Not supported	Not supported
Focal aperture	f/2.2 (aperture)	f/1.9 (aperture)
Focal length	26mm (lens)	26mm (lens)
Sensor size	1/2.8" inches	1/3.1" inches
Pixel size	0.8µm pixel	1µm pixel
🔉 Sound and multimedia
	Galaxy A51 (SM-A515F/DSM 128GB)	Galaxy A5 2017 (SM-A520F)
Loudspeaker	Supported	Supported
Active noise cancellation	2 microphones or more	2 microphones or more
Radio	FM (RDS)	FM
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263, XviD, MKV	MP4, H.265, H.264, H.263, WMV
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Galaxy A51 (SM-A515F/DSM 128GB)	Galaxy A5 2017 (SM-A520F)
USB	USB 2.0 Type-C, USB OTG On-The-Go	USB 2.0 Type-C reversible connector
Audio output	3.5mm jack	3.5mm jack
TV output	Not supported	Not supported
Bluetooth	5.0 + A2DP/LE	4.2 + A2DP
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, BeiDou
NFC	Not supported	Supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Galaxy A51 (SM-A515F/DSM 128GB)	Galaxy A5 2017 (SM-A520F)
Sensors	Accelerometer Ambient light sensor ANT+ Compass Face unlock Fingerprint sensor (under display) Gyroscope Hall effect Virtual proximity sensor	Accelerometer Ambient light sensor ANT+ Barometer Compass Fingerprint sensor (front-mounted) Gyroscope Hall effect Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Galaxy A51 (SM-A515F/DSM 128GB)	Galaxy A5 2017 (SM-A520F)
Battery type	LiPo: li-ion polymer (Non removable)	Li-Ion: lithium-ion (Non removable)
Battery capacity	4000 mAh	3000 mAh
Charger, watts	15W Wired fast charging	18W Wired fast charging
Inductive / wireless charging	Not supported	Not supported
Talk time autonomy	feature not registered	16 hours
Standby	feature not registered	feature not registered
➕ Other features
	Galaxy A51 (SM-A515F/DSM 128GB)	Galaxy A5 2017 (SM-A520F)
Call control	Voice dialing, Voice recorder	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, Crush Black, White, Blue, Pink	• Colors: Black, Gold, Blue, Pink • Gorilla Glass on the back • Samsung Grace UX
☢️ Radiation rate
	Galaxy A51 (SM-A515F/DSM 128GB)	Galaxy A5 2017 (SM-A520F)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	feature not registered
SAR 2W/kg (Europe, UK, etc.)	0.369W/kg (head), 1.59W/kg (body)	0.522W/kg (head), 1.39W/kg (body)