Samsung Galaxy A51 vs Samsung Galaxy Z Flip 3 Specs Comparison

Compare phone and tablet specifications of up to three devices at once.

7.0	8.0
Samsung Galaxy A51	Samsung Galaxy Z Flip 3
Released · Dec 27, 2019	Released · Aug 27, 2021
6.5-inch · 2400 x 1080 px	6.7-inch · 2636 x 1080 px
48 MP Main · 32 MP Selfie	12 MP Main · 10 MP Selfie
4GB · 128GB	8GB · 128GB
4000 mAh	3300 mAh
Check prices	Check prices

Display

Size
6.5-inch	6.7-inch
Resolution
2400 x 1080 px, 20:9 ratio, 405 PPI	2636 x 1080 px, 22:9 ratio, 425 PPI
Technology
Super AMOLED	Dynamic AMOLED
Refresh rate
60Hz	120Hz
Screen-to-body
87.37 %	84.79 %
Features
Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor	Folding inside the device, HDR support, Ambient light sensor, Proximity sensor
Front cover display
	1.9 inches 260 x512 pixels AMOLED

Hardware

System chip
Samsung Exynos 9611 (10 nm)	Qualcomm Snapdragon 888 SM8350 (5 nm)
Processor
Octa-core, 2300 MHz, 4x 2.3GHz Cortex-A73 + 4x 1.7GHz Cortex-A53, 64-bit	Octa-core, 1x 2.84GHz Kryo 680 + 3x 2.42GHz Kryo 680 + 4x 1.80GHz Kryo 680, 64-bit
GPU
Mali-G72 MP3	Adreno 660
RAM
4GB (LPDDR4)	8GB (LPDDR5)
Internal storage
128GB, available to use: 105.9 GB	128GB (UFS 3.1), not expandable
Storage expansion
microSDXC up to 512 GB
OS
Android (11, 10), Samsung One UI	Android (11)
Device type
Smartphone	Smartphone

Battery

Capacity
4000 mAh	3300 mAh
Type
Li - Polymer, Not user replaceable
Battery life test results
link
Charging
Fast charging	Fast charging, Qi wireless charging, Reverse wired charging
Max charge speed
	Wired: 15.0W Wireless: 10.0W

Battery Life Estimate

5h 22min

Browsing

11h 35min

Video

8h 35min

Gaming

6h 40min

Battery Life Estimate

Untested

Browsing

10h 13min

Video

7h 10min

Gaming

Untested

Camera

Rear
Quad camera	Dual camera
Main camera
48 MP (PDAF) Specifications: Aperture size: F2.0 Focal length: 26 mm Sensor size: 1/2" Pixel size: 0.8 μm	12 MP (OIS, Autofocus) Specifications: Aperture size: F1.8 Pixel size: 1.4 μm
Second camera
12 MP (Ultra-wide) Specifications: Aperture size: F2.2 Focal Length: 13 mm Pixel size: 1.12 μm	12 MP (Ultra-wide) Specifications: Aperture size: F2.2 Pixel size: 1.12 μm
Third camera
5 MP (Macro) Specifications: Aperture size: F2.4 Focal Length: 40 mm
Fourth camera
5 MP (Depth information) Specifications: Aperture size: F2.2 Sensor size: 1/5" Pixel size: 1.12 μm
Flash
LED	LED
Video recording
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps) Features: Hyperlapse, EIS	Yes
Front
32 MP (HDR), Video capture: 1920x1080 (Full HD)	10 MP

Design

Dimensions
6.24 x 2.90 x 0.31 inches (158.5 x 73.6 x 7.9 mm)	6.54 x 2.84 x 0.27 inches (166 x 72.2 x 6.9 mm)
Folded
	(72.2 x 86.4 x 15.9 mm)
Weight
6.07 oz(172.0 g)	6.46 oz(183.0 g)
Materials
Back: Plastic Frame: Plastic	Back: Glass Frame: Aluminum
Resistance
	Yes; IPX8
Biometrics
2D Face unlock, Optical in-screen fingerprint	Fingerprint (touch)
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Prism Crush black, Prism Crush white, Prism Crush pink, Prism Crush blue	Phantom Black, Cream, Lavender

Cellular

5G
	Bands n2, n5, n25, n41, n66, n71, n260, n261, SA, NSA, Sub-6, mmWave
4G (FDD)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 14(700 PS), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)	Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 14(700 PS), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 30(2300 WCS), 66(AWS-3), 71(600)
4G (TDD)
Bands 38(2600), 39(1900+), 41(2600+)	Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600)
3G
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)	Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s	LTE-A Pro Cat 20 (2000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s
SIM type
Nano SIM	Nano SIM

Multimedia

Headphones
3.5mm jack	No 3.5mm jack
Speakers
Earpiece, Loudspeaker	Earpiece, Multiple speakers
Features
Dolby Atmos	aptX, aptX-HD
Screen mirroring
Wireless screen share	Wireless screen share
Radio
FM
Additional microphone(s)
Noise cancellation	Noise cancellation

Connectivity & Features

Bluetooth
5.0	5.1
Wi-Fi
802.11 a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot	802.11 a,b,g,n,ac Wi-Fi Direct, Hotspot
USB
Type-C (reversible), USB 2.0, Features: Charging, OTG	Type-C (reversible), USB 3.1, Features: Charging, OTG
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning	GPS, A-GPS, Glonass, Galileo, BeiDou
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers)	Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer
Other
NFC, ANT+	NFC

Regulatory Approval

FCC approval
Date approved: Nov 28, 2019 FCC ID value: A3LSMA515FN	Date approved: Jun 23, 2021 FCC ID value: A3LSMF711U
Measured SAR
Head: 0.89 W/kg Body: 1.18 W/kg Simultaneous Transmission: 1.56 W/kg Wireless Router: 1.12 W/kg Phablet: 2.76 W/kg	Head: 1.05 W/kg Body: 1.08 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 1.21 W/kg

Buyers information

Price
$ 400
User Manual
This is the official Samsung Galaxy A51 User Guide in English provided from the manufacturer.

Availability

Officially announced
Dec 12, 2019	Aug 11, 2021

Alternative variants

with 128GB storage


RAM	6GB
Internal storage	128GB

With 256GB internal storage


Internal storage	256GB

for Verizon


4G (FDD)	Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 13(700 c), 20(800 DD), 28(700 APT), 66(AWS-3)
3G	Bands 5(850), 8(900), 2(1900), 1(2100)

With Dual SIM


Dual SIM	Yes
SIM type	Nano SIM, eSIM

for AT&T


4G (FDD)	Bands 2(1900), 4(AWS-1), 5(850), 12(700 a), 13(700 c), 25(1900+), 26(850+), 66(AWS-3), 71(600)
4G (TDD)	Bands 41(2600+)

for Sprint


4G (FDD)	Bands 2(1900), 4(AWS-1), 5(850), 12(700 a), 13(700 c), 25(1900+), 26(850+), 66(AWS-3), 71(600)
4G (TDD)	Bands 41(2600+)

for Europe


4G (FDD)	Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 20(800 DD), 26(850+), 28(700 APT), 66(AWS-3)
4G (TDD)	Bands 38(2600), 40(2300), 41(2600+)
Dual SIM	Yes

Links

Full specifications
Samsung Galaxy A51 Specs	Samsung Galaxy Z Flip 3 Specs
PhoneArena Review
Samsung Galaxy A51 Review	Samsung Galaxy Z Flip 3 Review
User Reviews
Samsung Galaxy A51 User Reviews	Samsung Galaxy Z Flip 3 User Reviews