Xiaomi Redmi Note 4 (32GB/3GB) vs Samsung Galaxy A51 5G (SM-A516B/DS)

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Side by side comparison between Xiaomi Redmi Note 4 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 Xiaomi Redmi Note 4 (32GB/3GB) 06Points

Specifications Compare Models Pictures

5.5"
IPS

1080x1920

13
MP

5mp

3GB
RAM

Octa-core

4100
mAh

(Non removable)

22Points Samsung Galaxy A51 5G (SM-A516B/DS) Compare Xiaomi Redmi Note 4 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!

6 Advantages Xiaomi Redmi Note 4 (32GB/3GB)	vs	22 Advantages Samsung Galaxy A51 5G (SM-A516B/DS)
+2GHz 64bit Octa-core2% More powerful processor, you can open your applications faster	vs	2.2GHz 64bit Octa-core (8nm)
+165 grams (5.78 ounces)13% Lighter	vs	187 grams (6.55 ounces)
+8.45 millimeters (0.33 inches)3% Thinner	vs	8.7 millimeters (0.34 inches)
+Dual-LED flashAdvantage The Dual-LED flash helps in dark places or in low light	vs	LED flash
+BSI sensorAdvantage The BSI sensor allows the entry of more light generating photos with more detail and brightness	vs	Not supported
+Proximity sensorAdvantage Sensors help you use the device	vs	Virtual proximity sensor
3GB LPDDR3	vs	+6GB LPDDR4X100% More RAM memory. Typically more responsive and better for multitasking.
32GB (22GB available)	vs	+128GB (105GB available)4 times More internal storage for applications and files
Until 256GB microSD, microSDXC	vs	+Until 1TB microSD, microSDXC3 times More external storage for files using memory cards
TFT IPS LCD	vs	+Super AMOLEDAdvantage Super AMOLED display is brighter and more vivid
1080x1920 pixels	vs	+1080x2400 pixels25% Higher resolution screen
401 PPI	vs	+405 PPI1% Crisper display of text, images and videos because it has more pixels per inch (ppi)
5.5"	vs	+6.5"18% Larger screen
(back) 13MP	vs	+(quad camera) 48MP + 12MP + 5MP + 5MP4 times Higher resolution main camera
(front) 5MP	vs	+(front) 32MP5 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 7.0 Nougat	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	+Face unlock 2DAdvantage Sensors help you use the device
4100 mAh	vs	+4500 mAh10% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
802.11 a/b/g/n [wifi4]	vs	+802.11 a/b/g/n/ac [wifi5]Advantage WiFi 802.11 a/b/g/n/ac [wifi5] is newer and faster
4.1 + A2DP	vs	+5.0 + A2DP/LEAdvantage Bluetooth 5.0 + A2DP/LE is newer and faster
Not supported	vs	+NFCAdvantage NFC allows you to make payments by approach quickly and securely
MicroUSB 2.0	vs	+Type-CAdvantage Reversible connector, you can stick in a USB-C cable any which way; either side is up.
Not supported	vs	+Gorilla Glass 3Advantage Protection against scratches on the screen lets you carry your phone with your keys

25 Common items in both devices

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

16 million

Only digital zoom

PDAF: phase detection autofocus

EIS: Digital stabilization

HDR photo on both cameras

f/2.0 (aperture)

+18 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
	Redmi Note 4 (32GB/3GB)	Galaxy A51 5G (SM-A516B/DS)
Change model		Choose the model
Model	Redmi Note 4 (32GB/3GB)	Galaxy A51 5G (SM-A516B/DS)
Other model names	Redmi Note 4 Snapdragon (3GB RAM), Xiaomi MarkW	Galaxy A51 SM-A516B
Country or region available	Brazil, India, (Global, International)	(Global, International)
Brand	Xiaomi	Samsung
Release date	1/1/2017	4/29/2020, Announced: 4/8/2020
Depth	8.45 millimeters (0.33 inches)	8.7 millimeters (0.34 inches)
Size (width x height)	76 x 151 millimeters (2.99 x 5.94 in)	73.6 x 158.9 millimeters (2.9 x 6.26 in)
Weight	165 grams (5.78 ounces)	187 grams (6.55 ounces)
Build, materials	Aluminum body, glass front	Aluminum body, glass front, plastic back
Protection against water and others	Not supported	Not supported
📲 Display
	Redmi Note 4 (32GB/3GB)	Galaxy A51 5G (SM-A516B/DS)
Display type	TFT IPS LCD	Super AMOLED
Screen size	5.5" inches	6.5" inches
Screen-to-body ratio	~72.7% (screen-to-body ratio)	~87.2% (screen-to-body ratio)
Display resolution	1080x1920 pixels	1080x2400 pixels (20:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	401 PPI	405 PPI
Colors	16 million	16 million
Scratch-resistant glass	Not supported	Gorilla Glass 3
Refresh rate	feature not registered	60Hz
Display features	feature not registered	Always-On Display
🤖 Operating System
	Redmi Note 4 (32GB/3GB)	Galaxy A51 5G (SM-A516B/DS)
System version	Android 6.0.1 Marshmallow	Android 10
Firmware update	Android 7.0 Nougat	Android 13
User Interface	feature not registered	One UI 2.5 / 3.1 / 4.1 / 5.0
⚙️ Processor
	Redmi Note 4 (32GB/3GB)	Galaxy A51 5G (SM-A516B/DS)
Chipset	64bit: Qualcomm Snapdragon 625 MSM8953 (14nm)	64bit: Samsung Exynos 980 (8nm)
CPU	Octa-core, 1 processor: 8x 2GHz ARM Cortex-A53 (Octa-core)	Octa-core, 2 processors: 2x 2.2GHz ARM Cortex-A77 (Dual-core) 6x 1.8GHz ARM Cortex-A55 (Hexa-core)
GPU graphical controller	Qualcomm Adreno 506 650Mhz	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
	Redmi Note 4 (32GB/3GB)	Galaxy A51 5G (SM-A516B/DS)
RAM memory	3GB LPDDR3	6GB LPDDR4X
Internal storage	32GB (22GB available)	128GB (105GB available) UFS 2.1
External storage	Until 256GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)	Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot)
📶 Mobile networks
	Redmi Note 4 (32GB/3GB)	Galaxy A51 5G (SM-A516B/DS)
Dual-SIM	Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot)	Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot)
SIM card	2 slots (Dual-SIM) micro-SIM (3FF) and 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 850/900/1900/2100	UMTS 850/900/1900/2100
Primary 4G network	LTE Cat4 850/1800 (Bands 3,5) TD-LTE 2300 (Bands 40)	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 850/900/1900/2100	Not supported
Secondary 4G network	Not supported	Not supported
Secondary data network	GPRS, EDGE	GPRS, EDGE
📷 Camera
	Redmi Note 4 (32GB/3GB)	Galaxy A51 5G (SM-A516B/DS)
Back camera (main camera)	13 megapixels	(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	4128x3096 pixels	8000x6000 pixels
Video recording (primary)	Full HD (1920x1080) 30 fps	4K UHD (3840x2160) 30 fps
Flash	Dual-LED flash	LED flash
Focal aperture	f/2.0 (aperture)	f/2.0 (aperture)
Focal length	feature not registered	26mm (lens)
Sensor size	feature not registered	1/2" inches
Pixel size	1.12µm 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	Supported	Not supported
HDR	HDR photo on both cameras	HDR photo on both cameras
Camera extras	feature not registered	feature not registered
📸 Front camera
	Redmi Note 4 (32GB/3GB)	Galaxy A51 5G (SM-A516B/DS)
Front camera (secondary)	5 megapixels	32 megapixels
Front camera resolution	2592x1944 pixels	6528x4896 pixels
Video recording (secondary)	Full HD (1920x1080)	4K UHD (3840x2160)
Front flash	Not supported	Not supported
Focal aperture	f/2.0 (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
	Redmi Note 4 (32GB/3GB)	Galaxy A51 5G (SM-A516B/DS)
Loudspeaker	Supported	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	MP4, H.265, H.264, H.263, XviD, MKV
Audio formats	MP3, OGG, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Redmi Note 4 (32GB/3GB)	Galaxy A51 5G (SM-A516B/DS)
USB	MicroUSB 2.0	USB 2.0 Type-C, USB OTG On-The-Go
Audio output	3.5mm jack	3.5mm jack
TV output	Not supported	Not supported
Bluetooth	4.1 + A2DP	5.0 + A2DP/LE
WiFi	802.11 a/b/g/n [wifi4] (2.4GHz, 5GHz) 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, BeiDou	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFC	Not supported	Supported
Infrared port	Supported	Not supported
🧭 Sensors
	Redmi Note 4 (32GB/3GB)	Galaxy A51 5G (SM-A516B/DS)
Sensors	Accelerometer Ambient light sensor Compass Fingerprint sensor Gyroscope Hall effect Proximity sensor	Accelerometer Ambient light sensor ANT+ Compass Face unlock 2D Fingerprint sensor (under display) Gyroscope Hall effect Virtual proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Redmi Note 4 (32GB/3GB)	Galaxy A51 5G (SM-A516B/DS)
Battery type	LiPo: li-ion polymer (Non removable)	LiPo: li-ion polymer (Non removable)
Battery capacity	4100 mAh	4500 mAh
Charger, watts	Wired charging	15W Wired fast charging
Inductive / wireless charging	feature not registered	Not supported
Talk time autonomy	feature not registered	feature not registered
Standby	feature not registered	feature not registered
➕ Other features
	Redmi Note 4 (32GB/3GB)	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: Black, Gold, Gray • USB OTG On-The-Go • Aluminum body • 2.5D curved glass • MIUI 8.0 • 720p@120fps slow-motion • 24-bit/192kHz audio • WiFi display	• Colors: Prism Cube Black, Prism Cube White, Prism Cube Pink
☢️ Radiation rate
	Redmi Note 4 (32GB/3GB)	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.)	feature not registered	0.496W/kg (head), 1.555W/kg (body)