Samsung Galaxy A51 vs Google Pixel 8a Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.

7.0
Samsung Galaxy A51
6.4
Google Pixel 8a
Samsung Galaxy A51 Google Pixel 8a
Released · Dec 27, 2019
Released · May 14, 2024
6.5-inch · 2400x1080px
6.1-inch · 2400x1080px
Quad camera
Dual camera
4GB · 128GB
8GB · 128GB
4000 mAh
4492 mAh
Check prices Check prices

Design

Dimensions
6.24 x 2.90 x 0.31 inches
158.5 x 73.6 x 7.9 mm
5.99 x 2.84 x 0.35 inches
152.1 x 72.2 x 8.9 mm
Weight
6.07 oz (172.0 g) 6.63 oz (188.0 g)
Materials
Back: Plastic
Frame: Plastic
Back: Plastic
Frame: Aluminum
Resistance
Water, Dust; IP67
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 Obsidian, Porcelain, Bay, Aloe

Display

Size
6.5-inch 6.1-inch
Resolution
2400x1080px, 20:9 ratio, 405 PPI 2400x1080px, 20:9 ratio, 431 PPI
Technology
Super AMOLED OLED
Refresh rate
60Hz 120Hz
Screen-to-body
87.37 % 81.28 %
Peak brightness
2000 cd/m2 (nit)
Features
Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor HDR support, Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor

Hardware

System chip
Samsung Exynos 9611 (10 nm) Google Tensor G3 (4 nm)
Processor
Octa-core
2300 MHz
4x 2.3GHz Cortex-A73 + 4x 1.7GHz Cortex-A53
Nona-core
1x 3.0GHz Cortex-X3 + 4x 2.45GHz Cortex-A715 + 4x 2.15GHz Cortex-A510
GPU
Mali-G72 MP3 Immortalis-G715s MC10
RAM
4GB (LPDDR4) 8GB (LPDDR5X)
Internal storage
128GB, available to use: 105.9 GB 128GB (UFS 3.1)
Storage expansion
microSDXC up to 512 GB not expandable
OS
Android (11, 10), Samsung One UI Android (15, 14)

Battery

Capacity
4000 mAh 4492 mAh
Type
Li - Polymer Li - Polymer
Charging
Fast charging Fast charging, Qi wireless charging
Charge speed
Wired: 18.0W
Wireless: 7.5W
PhoneArena Battery Tests
Battery Life Estimate
5h 22min
Browsing
11h 35min
Video
8h 35min
Gaming
6h 40min
Battery Life Estimate
5h 51min
Browsing
13h 53min
Video
8h 34min
Gaming
7h 16min

Camera

Rear
Quad camera Dual camera
Main camera
48 MP (PDAF)
Aperture size: F2.0
Focal length: 26 mm
Sensor size: 1/2"
Pixel size: 0.8 μm
64 MP (OIS, PDAF)
Aperture size: F1.9
Focal length: 26 mm
Sensor size: 1/1.73"
Pixel size: 0.8 μm
Second camera
12 MP (Ultra-wide)
Aperture size: F2.2
Focal Length: 13 mm
Pixel size: 1.12 μm
13 MP (Ultra-wide)
Aperture size: F2.2
Pixel size: 1.12 μm
Third camera
5 MP (Macro)
Aperture size: F2.4
Focal Length: 40 mm
Fourth camera
5 MP (Depth information)
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)
Hyperlapse, EIS
3840x2160 (4K UHD) (60 fps)
Front
32 MP (HDR), Video capture: 1920x1080 (Full HD) 13 MP
PhoneArena Camera Tests
N/A
Overall
N/A
Photo
N/A
Video
134
Overall
142
Photo
127
Video

Connectivity & Features

Bluetooth
5.0 5.3
WLAN
802.11 a,b,g,n,ac,dual-band
Wi-Fi Direct, Hotspot
802.11 a,b,g,n,ac,ax(Wi-Fi 6),Wi-Fi 6E
Wi-Fi Direct, Hotspot
USB
Type-C, USB 2.0 Type-C, USB 3.2
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning GPS, A-GPS, Glonass, Galileo, BeiDou, QZSS, NavIC, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers) Accelerometer, Gyroscope, Compass, Barometer
Other
NFC, ANT+ NFC

Multimedia

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

Cellular

5G
Bands n1, n2, n3, n5, n7, n8, n20, n28, n48, n66, n71, n77, n78, 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), 17(700 b), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)
4G (TDD)
Bands 38(2600), 39(1900+), 41(2600+) Bands 38(2600), 41(2600+)
3G
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900) Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 6(800), 8(900)
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s LTE-A, HSDPA+ (4G) 42.2 Mbit/s
SIM type
Nano SIM Nano SIM, eSIM

Regulatory Approval

FCC approval
Date approved: Nov 28, 2019
FCC ID value: A3LSMA515FN
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

Buyers information

MSRP
$ 400 $ 499 / € 549
In The Box
Phone, USB Type-C cable, SIM ejector tool, Papers

Availability

Officially announced
Dec 12, 2019 May 07, 2024

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)
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
FCC OKs Cingular\'s purchase of AT&T Wireless