Samsung Galaxy A51 5G (SM-A516U) vs Samsung Galaxy A3 Duos (SM-A300F/DS)

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Side by side comparison between Samsung Galaxy A51 5G vs Samsung Galaxy A3 phones, differences, pros, cons and full specifications. What's the better?

9/28/2020 6:25 PM, updated: 11/22/2022 5:44 PM

Compare Samsung Galaxy A3 X Samsung Galaxy A51 5G (SM-A516U) 25Points

Specifications Compare Models Pictures

6.5"
AMOLED

1080x2400

48
MP

32mp

6GB
RAM

Octa-core

4500
mAh

(Non removable)

04Points Samsung Galaxy A3 Duos (SM-A300F/DS) Compare Samsung Galaxy A51 5G X

Specifications Compare Models Pictures

4.5"
AMOLED

540x960

8
MP

5mp

1GB
RAM

Quad-core

1900
mAh

(Non removable)

What's the better phone? Samsung Galaxy A51 5G (SM-A516U)

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!

25 Advantages Samsung Galaxy A51 5G (SM-A516U)	vs	4 Advantages Samsung Galaxy A3 Duos (SM-A300F/DS)
+2.2GHz 64bit Octa-core (8nm)102% More powerful processor, you can open your applications faster	vs	1.2GHz 64bit Quad-core (28nm)
+6GB LPDDR4X5 times More RAM memory. Typically more responsive and better for multitasking.	vs	1GB LPDDR2
+128GB (105GB available)8 times More internal storage for applications and files	vs	16GB (12GB available)
+UFS 2.1Advantage Fastest write and read storage.	vs	eMMC 4.5
+Until 1TB microSD, microSDXC15 times More external storage for files using memory cards	vs	Until 64GB microSD, microSDXC
+1080x2400 pixels4 times Higher resolution screen	vs	540x960 pixels
+405 PPI65% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	245 PPI
+6.5"44% Larger screen	vs	4.5"
+(quad camera) 48MP + 12MP + 5MP + 5MP8 times Higher resolution main camera	vs	(back) 8MP
+HDR photo on both camerasAdvantage The HDR technology produced photos with more detail in dark areas	vs	HDR photo only main camera
+f/2.0 (aperture)20% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.	vs	f/2.4 (aperture)
+(front) 32MP5 times Higher resolution secondary camera to take pictures and selfies	vs	(front) 5MP
+4K UHD (3840x2160)3 times More image quality for recording videos with the primary camera	vs	Full HD (1920x1080)
+(front) 4K UHD (3840x2160)21 times More image quality for recording videos with the secondary camera	vs	(front) WVGA (800x480)
+Android 13Advantage Android 13 is newer and safer	vs	Android 6.0.1 Marshmallow
+5G SA/NSAAdvantage The 5G SA/NSA network is newer and faster	vs	4G LTE
+(5G SA/NSA) 2000 Mbps12 times Faster for surfing the internet and download files	vs	(4G LTE) 150 Mbps
+Face unlock 2DAdvantage Sensors help you use the device	vs	Not supported
+Fingerprint sensor (under display)Advantage Sensors help you use the device	vs	Not supported
+GyroscopeAdvantage Sensors help you use the device	vs	Not supported
+4500 mAh137% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use	vs	1900 mAh
+15W3 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.	vs	3.5W
+802.11 a/b/g/n/ac [wifi5]Advantage WiFi 802.11 a/b/g/n/ac [wifi5] is newer and faster	vs	802.11 b/g/n [wifi4]
+5.0 + A2DP/LEAdvantage Bluetooth 5.0 + A2DP/LE is newer and faster	vs	4.0 + A2DP
+Type-CAdvantage Reversible connector, you can stick in a USB-C cable any which way; either side is up.	vs	MicroUSB 2.0
187 grams (6.55 ounces)	vs	+110 grams (3.85 ounces)70% Lighter
8.7 millimeters (0.34 inches)	vs	+6.9 millimeters (0.27 inches)26% Thinner
Virtual proximity sensor	vs	+Proximity sensorAdvantage Sensors help you use the device
1 slot (Single-SIM) (dedicated slot)	vs	+2 slots (Dual-SIM) (hybrid slot/shares the same microSD slot)Advantage You can have more mobile carriers/operators on the same device.

26 Common items in both devices

Aluminum body, glass front, plastic back / Aluminum body, glass front

Super AMOLED

60Hz

16 million

LED flash

Only digital zoom

PDAF: phase detection autofocus / Autofocus

+19 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 5G (SM-A516U)	Galaxy A3 Duos (SM-A300F/DS)
Change model		Choose the model
Model	Galaxy A51 5G (SM-A516U)	Galaxy A3 Duos (SM-A300F/DS)
Other model names	Galaxy A51 SM-A516UZKAXAA (Unlocked)	Galaxy A3 (4G LTE) SM-A300F/Dual-Sim
Country or region available	USA	(Europe), Kazakhstan, Russia
Brand	Samsung	Samsung
Release date	4/29/2020, Announced: 4/8/2020	11/1/2014
Depth	8.7 millimeters (0.34 inches)	6.9 millimeters (0.27 inches)
Size (width x height)	73.6 x 158.9 millimeters (2.9 x 6.26 in)	65.5 x 130.1 millimeters (2.58 x 5.12 in)
Weight	187 grams (6.55 ounces)	110 grams (3.85 ounces)
Build, materials	Aluminum body, glass front, plastic back	Aluminum body, glass front
Protection against water and others	Not supported	Not supported
📲 Display
	Galaxy A51 5G (SM-A516U)	Galaxy A3 Duos (SM-A300F/DS)
Display type	Super AMOLED	Super AMOLED
Screen size	6.5" inches	4.5" inches
Screen-to-body ratio	~87.2% (screen-to-body ratio)	~65.5% (screen-to-body ratio)
Display resolution	1080x2400 pixels (20:9)	540x960 pixels (16:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	405 PPI	245 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 3	Gorilla Glass 4
Refresh rate	60Hz	60Hz
Display features	Always-On Display	Not supported
🤖 Operating System
	Galaxy A51 5G (SM-A516U)	Galaxy A3 Duos (SM-A300F/DS)
System version	Android 10	Android 4.4.4 KitKat
Firmware update	Android 13	Android 6.0.1 Marshmallow
User Interface	One UI 2.5 / 3.1 / 4.1 / 5.0	TouchWiz UX
⚙️ Processor
	Galaxy A51 5G (SM-A516U)	Galaxy A3 Duos (SM-A300F/DS)
Chipset	64bit: Samsung Exynos 980 (8nm)	64bit: Qualcomm Snapdragon 410 (MSM8916) (28nm)
CPU	Octa-core, 2 processors: 2x 2.2GHz ARM Cortex-A77 (Dual-core) 6x 1.8GHz ARM Cortex-A55 (Hexa-core)	Quad-core, 1 processor: 4x 1.2GHz ARM Cortex-A53 (Quad-core)
GPU graphical controller	ARM Mali-G76 MP5 (728MHz)	Qualcomm Adreno 306 (450MHz)
Performance (benchmark)	AnTuTu: 316007 (v8) Geekbench: 1867(v5.1) GFXBench: 17fps (ES 3.1 onscreen)	feature not registered
💽 Memory and storage
	Galaxy A51 5G (SM-A516U)	Galaxy A3 Duos (SM-A300F/DS)
RAM memory	6GB LPDDR4X	1GB LPDDR2
Internal storage	128GB (105GB available) UFS 2.1	16GB (12GB available) eMMC 4.5
External storage	Until 1TB microSD, microSDXC (dedicated slot)	Until 64GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)
📶 Mobile networks
	Galaxy A51 5G (SM-A516U)	Galaxy A3 Duos (SM-A300F/DS)
Dual-SIM	Not supported	Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot)
SIM card	1 slot (Single-SIM) nano-SIM (4FF)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	2000/200 Mbps	150/50 Mbps
Network technology	2G, 3G, 4G, 5G	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 850/900/1900/2100
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 Cat4 (1, 3, 5, 7, 8, 20)
Primary 5G network	SA/NSA/Sub6 (41, 78)	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE
Secondary 2G network	Not supported	GSM 850/900/1800/1900
Secondary 3G network	Not supported	Not supported
Secondary 4G network	Not supported	Not supported
Secondary data network	Not supported	GPRS, EDGE
📷 Camera
	Galaxy A51 5G (SM-A516U)	Galaxy A3 Duos (SM-A300F/DS)
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	8 megapixels
Main camera resolution	8000x6000 pixels	3264x2448 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/2.4 (aperture)
Focal length	26mm (lens)	31mm (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 5G (SM-A516U)	Galaxy A3 Duos (SM-A300F/DS)
Front camera (secondary)	32 megapixels	5 megapixels
Front camera resolution	6528x4896 pixels	2592x1944 pixels
Video recording (secondary)	4K UHD (3840x2160)	WVGA (800x480)
Front flash	Not supported	Not supported
Focal aperture	f/2.2 (aperture)	f/2.2 (aperture)
Focal length	26mm (lens)	23mm (lens)
Sensor size	1/2.8" inches	feature not registered
Pixel size	0.8µm pixel	feature not registered
🔉 Sound and multimedia
	Galaxy A51 5G (SM-A516U)	Galaxy A3 Duos (SM-A300F/DS)
Loudspeaker	Supported	Mono sound (not stereo)
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.264, H.263, WMV
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Galaxy A51 5G (SM-A516U)	Galaxy A3 Duos (SM-A300F/DS)
USB	USB 2.0 Type-C, USB OTG On-The-Go	MicroUSB 2.0
Audio output	3.5mm jack	3.5mm jack
TV output	Not supported	Not supported
Bluetooth	5.0 + A2DP/LE	4.0 + A2DP
WiFi	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot	802.11 b/g/n [wifi4] (2.4GHz) WiFi hotspot
DLNA	Not supported	Not supported
GPS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou	A-GPS, GeoTagging, GLONASS, BeiDou
NFC	Supported	Supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Galaxy A51 5G (SM-A516U)	Galaxy A3 Duos (SM-A300F/DS)
Sensors	Accelerometer Ambient light sensor ANT+ Compass Face unlock 2D Fingerprint sensor (under display) Gyroscope Hall effect Virtual proximity sensor	Accelerometer Ambient light sensor ANT+ Compass Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Galaxy A51 5G (SM-A516U)	Galaxy A3 Duos (SM-A300F/DS)
Battery type	LiPo: li-ion polymer (Non removable)	Li-Ion: lithium-ion (Non removable)
Battery capacity	4500 mAh	1900 mAh
Charger, watts	15W Wired fast charging	3.5W (5V/0.7A) Wired charging
Inductive / wireless charging	Not supported	Not supported
Talk time autonomy	feature not registered	12 hours
Standby	feature not registered	feature not registered
➕ Other features
	Galaxy A51 5G (SM-A516U)	Galaxy A3 Duos (SM-A300F/DS)
Call control	Voice dialing, Voice recorder	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: Prism Cube Black, Prism Cube White, Prism Cube Pink	• Colors: Black, White, Blue, Silver, Pink, Gold • Java framework
☢️ Radiation rate
	Galaxy A51 5G (SM-A516U)	Galaxy A3 Duos (SM-A300F/DS)
SAR 1.6W/kg (USA, Mexico, etc.)	1.18W/kg (head), 1.2W/kg (body)	1.86W/kg (head), 1.05W/kg (body)
SAR 2W/kg (Europe, UK, etc.)	feature not registered	0.244W/kg (head), 0.301W/kg (body)