Samsung Galaxy A51 5G (SM-A516U) vs Oppo Reno4 Z 5G

Side by side comparison between Samsung Galaxy A51 5G vs Oppo Reno4 Z 5G phones, differences, pros, cons with full specifications. What's the better?

1/24/2021 11:47 AM, updated: 1/24/2021 12:19 PM

Compare Oppo Reno4 Z 5G XSamsung Galaxy A51 5G (SM-A516U)10Points

Specifications Compare Models

6.5"
AMOLED

1080x2400

48
MP

32mp

6GB
RAM

64bit Octa

4500
mAh

(Non removable)

11PointsOppo Reno4 Z 5GCompare Samsung Galaxy A51 5G X

Specifications Compare Models

6.57"
IPS

1080x2400

48
MP

16mp

8GB
RAM

64bit Octa

4000
mAh

(Non removable)

What's the better phone? Oppo Reno4 Z 5G

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!

10 Advantages Samsung Galaxy A51 5G (SM-A516U)	vs	11 Advantages Oppo Reno4 Z 5G
+Until 1TB microSD, microSDXCAdvantage More external storage for files using memory cards	vs	Not supported
+Aluminum body, glass front, plastic backAdvantage More resistant material	vs	Plastic body, glass front
+Super AMOLEDAdvantage Super AMOLED display is brighter and more vivid	vs	LTPS IPS LCD
+405 PPI1% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	401 PPI
+(quad camera) 48MP + 12MP + 5MP + 5MP17% Higher resolution main camera	vs	(quad camera) 48MP + 8MP + 2MP + 2MP
+(front) 32MP78% Higher resolution secondary camera to take pictures and selfies	vs	(dual front camera) 16MP + 2MP
+(front) 4K UHD (3840x2160)3 times More image quality for recording videos with the secondary camera	vs	(front) Full HD (1920x1080)
+ANT+Advantage Sensors help you use the device	vs	Not supported
+4500 mAh13% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use	vs	4000 mAh
+FM (RDS)Advantage The radio lets you listen to your songs and sports in general	vs	Not supported
2.2Ghz 64bit Octa-Core	vs	+2Ghz 64bit Octa-Core16% More powerful processor, you can open your applications faster
6GB LPDDR4X	vs	+8GB LPDDR4X33% More RAM memory. Typically more responsive and better for multitasking.
187 grams (6.55 ounces)	vs	+184 grams (6.44 ounces)2% Lighter
8.7 millimeters (0.34 inches)	vs	+8.1 millimeters (0.32 inches)7% Thinner
60Hz	vs	+120Hz100% The display reproduces more frames per second because the frequency (Hertz) is higher, improves fluidity and tires your eyes less.
6.5"	vs	+6.57"1% Larger screen
f/2.0 (aperture)	vs	+f/1.7 (aperture)18% Diaphragm opening (Aperture) of the camera which has the smallest F number takes photos with better light exposure.
(5G SA/NSA) 2000 Mbps	vs	+(5G SA/NSA) 3500 Mbps75% Faster for surfing the internet and download files
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.
1 slot (Single-SIM) (dedicated slot)	vs	+2 slots (Dual-SIM)Advantage It's more advantageous to have more than one phone operator in the same device
5.0 + A2DP/LE	vs	+5.1 + A2DP/LEAdvantage Bluetooth 5.1 + A2DP/LE is newer and faster

34 Common items in both devices

128GB (105GB available) / 128GB (108GB available)

UFS 2.1

16 million

1080x2400 pixels

LED flash

Only digital zoom

PDAF: phase detection autofocus

+27 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

Physical features	Samsung Galaxy A51 5G (SM-A516U)	Oppo Reno4 Z 5G
Model	Galaxy A51 5G (SM-A516U)	Reno4 Z 5G
Other model names	Galaxy A51 SM-A516UZKAXAA (Unlocked)	Oppo Reno 4 Z 5G CPH2065
Country or region available	USA	(Global, International)
Brand	Samsung	Oppo
Release date	April, 2020	October, 2020
Depth	8.7 millimeters (0.34 inches)	8.1 millimeters (0.32 inches)
Size (width x height)	73.6 x 158.9 millimeters (2.9 x 6.26 in)	75.5 x 163.8 millimeters (2.97 x 6.45 in)
Weight	187 grams (6.55 ounces)	184 grams (6.44 ounces)
Qwerty physical keyboard	Not supported	Not supported
Antenna	Internal antenna	Internal antenna
Build, materials	Aluminum body, glass front, plastic back	Plastic body, glass front
Protection against water and others	Not supported	Not supported
System (OS)	Samsung Galaxy A51 5G (SM-A516U)	Oppo Reno4 Z 5G
Operating system	Android 10	Android 10
Firmware update	feature not registered	feature not registered
Hardware	Samsung Galaxy A51 5G (SM-A516U)	Oppo Reno4 Z 5G
Chipset	64bit - Samsung Exynos 980 Octa (8nm)	64bit - MediaTek MT6873V Dimensity 800 (7nm)
CPU processor	Octa-Core, 2 processors: 2.2Ghz Dual-Core ARM Cortex-A77 1.8Ghz Hexa-Core ARM Cortex-A55	Octa-Core, 2 processors: 2Ghz Quad-Core ARM Cortex-A76 2Ghz Quad-Core ARM Cortex-A55
GPU graphical controller	ARM Mali-G76 MP5	ARM Mali-G57 MC4
RAM memory	6GB LPDDR4X	8GB LPDDR4X
Internal storage	128GB (105GB available) UFS 2.1	128GB (108GB available) UFS 2.1
External storage	Until 1TB microSD, microSDXC (dedicated slot)	Not supported
Display	Samsung Galaxy A51 5G (SM-A516U)	Oppo Reno4 Z 5G
Display type	Super AMOLED	LTPS IPS LCD
Screen size	6.5" inches	6.57" inches
Screen-to-body ratio	~87.2% (screen-to-body ratio)	~84.3% (screen-to-body ratio)
Display resolution	1080x2400 pixels (20:9)	1080x2400 pixels (20:9)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	405 PPI	401 PPI
Colors	16 million	16 million
Scratch-resistant glass	Gorilla Glass 3	Gorilla Glass 3
Display features	60Hz	120Hz, 480 nits
Mobile networks	Samsung Galaxy A51 5G (SM-A516U)	Oppo Reno4 Z 5G
Dual-SIM	Not supported	Dual-SIM Standby - Call active on one sim card
SIM card	1 slot (Single-SIM) nano-SIM (4FF)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum download/upload	2000/200 Mbps	3500/1920 Mbps
Network technology	2G, 3G, 4G, 5G	2G, 3G, 4G, 5G
Frequency, bands	Expand band detailsCollapse 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 Cat (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 66) TD-LTE (38, 39, 40, 41) VoLTE
Primary 5G network	SA/NSA/Sub6 (41, 78)	SA/NSA (1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 77, 78)
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, 5G SA/NSA	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, 5G SA/NSA
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
Calling	Samsung Galaxy A51 5G (SM-A516U)	Oppo Reno4 Z 5G
Messaging	SMS (T9), MMS, E-mail, Push mail	SMS (T9), MMS, E-mail, Push mail
Speakerphone	Supported	Supported
Video calling	Supported	Supported
Call control	Voice dialing, Voice recorder	Voice dialing, Voice recorder, Voice commands
Camera	Samsung Galaxy A51 5G (SM-A516U)	Oppo Reno4 Z 5G
Back camera (main camera)	(quad camera) 48 megapixels 12MP ultrawidef/2.213mm1.12µm 5MP telephotof/2.440mm 5MP depthf/2.21/5.0"1.12µm	(quad camera) 48 megapixels 8MP ultrawidef/2.2119º1/4.0"1.12µm 2MP depthf/2.4 2MP depthf/2.4
Main camera resolution	8000x6000 pixels	8000x6000 pixels
Video recording (primary)	4K UHD (3840x2160) 30 fps	4K UHD (3840x2160) 30 fps
Flash	LED flash	LED flash
Focal aperture	f/2.0 (aperture)	f/1.7 (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
2ª camera	Samsung Galaxy A51 5G (SM-A516U)	Oppo Reno4 Z 5G
Front camera (secondary)	32 megapixels	(dual front camera) 16 megapixels 2MP depthf/2.4
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/2.0 (aperture)
Focal length	26mm lens	26mm lens
Sensor size	1/2.8" inches	1/3.06" inches
Pixel size	0.8µm pixel	1µm pixel
Multimedia	Samsung Galaxy A51 5G (SM-A516U)	Oppo Reno4 Z 5G
Radio	FM (RDS)	Not supported
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	Samsung Galaxy A51 5G (SM-A516U)	Oppo Reno4 Z 5G
USB	USB 2.0 Type-C, USB OTG On-The-Go	USB 2.0 Type-C, USB OTG On-The-Go
TV output	Not supported	USB Type-C (reversible)
Audio output	3.5mm jack	3.5mm jack
Bluetooth	5.0 + A2DP/LE	5.1 + A2DP/LE
WiFi	802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO	802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO
DLNA	Not supported	Not supported
NFC	Supported	Supported
GPS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS
Infrared port	Not supported	Not supported
Other functions	Samsung Galaxy A51 5G (SM-A516U)	Oppo Reno4 Z 5G
Active noise cancellation	Supported	Supported
Vibrating alert	Supported	Supported
Ringtones	Polyphonic and customized	Polyphonic and customized
Web browser	HTML, XHTML, HTML5	HTML, XHTML, HTML5
Sensors	Accelerometer Proximity sensor Compass Ambient Light sensor Gyroscope Hall effect Face unlock Fingerprint sensor (under display) ANT+	Accelerometer Proximity sensor Compass Ambient Light sensor Gyroscope Face unlock Fingerprint sensor (side-mounted)
Other features	- Colors: Prism Cube Black, Prism Cube White, Prism Cube Pink - One UI 2 - Always On Display - WiFi direct, hotspot	- Colors: Ink Black, Dew White - ColorOS 7.2 - 24-bit/192kHz audio - Case included - WiFi direct, hotspot
Power supply	Samsung Galaxy A51 5G (SM-A516U)	Oppo Reno4 Z 5G
Battery	LiPo: Li-Ion polymer (Non removable)	LiPo: Li-Ion polymer (Non removable)
Battery capacity	4500 mAh	4000 mAh
Charger, watts	15W Fast battery charging	18W (9V/2A) Fast battery charging
Talk time autonomy	feature not registered	1560 minutes \| 26 hours \| 1.1 days
Standby	feature not registered	21600 minutes \| 360 hours \| 15 days
Radiation rate	Samsung Galaxy A51 5G (SM-A516U)	Oppo Reno4 Z 5G
SAR 1.6W/kg (USA, Mexico, etc.)	1.18W/kg (head) \| 1.2W/kg (body)	feature not registered
SAR 2W/kg (Europe, UK, etc.)	feature not registered	feature not registered