Samsung Galaxy S9+ vs Samsung Galaxy A51

$529.99 VIEW ON AMAZON
$404.61 VIEW ON AMAZON

Display

Size

6.2 inches
6.5 inches

Resolution

2960 x 1440 pixels, 18.5:9 ratio,
531 PPI
2400 x 1080 pixels, 20:9 ratio,
405 PPI

Technology

Super AMOLED
Super AMOLED

Screen-to-body

83.68 %
87.37 %

Features

HDR video support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor
Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor

Hardware & Performance

System chip

Qualcomm Snapdragon 845 SDM845
Samsung Exynos 9611

Processor

Octa-core, 2800 MHz, Kryo 385, 64-bit, 10 nm
Octa-core, 2300 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm

GPU

Adreno 630
Mali-G72 MP3

RAM

6GB LPDDR4
4GB LPDDR4

Internal storage

64GB
128GB

Available to use

 
107 GB

Storage expansion

microSDXC up to 400 GB
microSDXC up to 512 GB

Device type

Smart phone
Smart phone

OS

Android (10, 9.0 Pie, 8.0 Oreo), Samsung One UI
Android (10), Samsung One UI

Battery

Capacity

3500 mAh
4000 mAh

Type

Li - Ion, Not user replaceable
Li - Polymer, Not user replaceable

Charging

Qualcomm Quick Charge 2.0, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging
Fast charging

Talk time

35.00 hours
the average is 19 h (1116 min)
 

Stand-by time

14.2 days (342 hours)
the average is 21 days (514 h)
 

Talk time (4G)

 
32 hours

Internet use

3G: 13 hours; LTE: 15 hours; Wi-Fi: 15 hours
LTE: 15 hours; Wi-Fi: 16 hours

Music playback

102.00 hours
87.00 hours

Video playback

20.00 hours
20.00 hours

Camera

Rear

Dual camera
Quad camera

Main camera

12 MP
48 MP

Features

OIS, PDAF
PDAF

Specifications

Aperture size: F1.5/F2.4; Focal length: 26 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm

Second camera

12 MP
12 MP

Features

Telephoto, OIS, Autofocus
Ultra-wide

Specifications

Optical zoom: 2x; Aperture size: F2.4; Focal Length: 52 mm; Sensor size: 1/3.6"; Pixel size: 1 μm
Aperture size: F2.2; Focal Length: 13 mm; Pixel size: 1.12 μm

Third camera

 
5 MP

Features

 
Macro

Specifications

 
Aperture size: F2.4; Focal Length: 40 mm

Fourth camera

 
5 MP

Features

 
Depth information

Specifications

 
Aperture size: F2.2; Sensor size: 1/5"; Pixel size: 1.12 μm

Flash

LED
LED

Software Features

Manual focus, Object tracking, RAW image capture, HDR, Panorama, Face detection, Voice activation, Burst mode, Exposure compensation, ISO control, White balance presets, Shutter speed control, Touch to focus, Self-timer, Digital zoom, Geo tagging
HDR, Panorama, Night mode, Scenes, Exposure compensation, ISO control, White balance presets, Touch to focus, Digital zoom, Geo tagging

Video recording

3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)

Features

HDR, Time-lapse video, Hyperlapse, Continuous autofocus, Object tracking, Picture-taking during video recording, EIS, Video calling, Video sharing
Hyperlapse, EIS

Front

8 MP
32 MP

Features

Autofocus, HDR
HDR

Video capture

2560x1440 (QHD) (30 fps)
1920x1080 (Full HD) (30 fps)

Design

Form factor

Candybar
Candybar

Dimensions

6.22 x 2.91 x 0.33 inches (158.1 x 73.8 x 8.5 mm)
6.24 x 2.90 x 0.31 inches (158.5 x 73.6 x 7.9 mm)

Weight

6.67 oz (189 g)
the average is 6.2 oz (179 g)
6.07 oz (172 g)
the average is 6.2 oz (179 g)

Materials

Back: Glass (Corning Gorilla Glass 5); Frame: Aluminum
Back: Plastic; Frame: Plastic

Resistance

Water, Dust; IP 68
 

Biometrics

Iris scanner, 2D Face unlock, Fingerprint (touch)
2D Face unlock, In-screen fingerprint

Features

Notification light
 

Keys

Left: Volume control, Other; Right: Lock/Unlock key
Right: Volume control, Lock/Unlock key

Colors

Midnight black, Coral blue, Titanium gray, Lilac purple, Burgundy red, Sunrise gold, Ice blue, Polaris blue
Prism Crush black, Prism Crush white, Prism Crush pink, Prism Crush blue

Cellular

LTE (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), 17(700 b), 18(800 Lower), 19(800 Upper), 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), 17(700 b), 20(800 DD), 26(850+), 28(700 APT), 66(AWS-3)

LTE (TDD)

Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46
Bands 38(2600), 40(2300), 41(2600+)

UMTS

850, 900, 1700/2100, 1900, 2100 MHz
850, 900, 1700/2100, 1900, 2100 MHz

GSM

850, 900, 1800, 1900 MHz
850, 900, 1800, 1900 MHz

CDMA

800, 1900 MHz
 

Data Speed

LTE-A Pro Cat 18 (1200/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

2G Data

EDGE, GPRS
EDGE, GPRS

Dual SIM

 
Yes

SIM type

Nano SIM
Nano SIM

Global Roaming

Yes
Yes

Multimedia

Headphones

3.5mm jack
3.5mm jack

Speakers

Earpiece, Multiple speakers
Earpiece, Loudspeaker

Features

32-Bit DAC, Dolby Atmos, aptX-HD
Dolby Atmos

Screen mirroring

Wireless screen share
Wireless screen share

Radio

FM
FM

Additional microphone(s)

for Noise cancellation
for Noise cancellation

Connectivity & Features

Bluetooth

5.0
5.0

Profiles/ Protocols

Advanced Audio Distribution (A2DP), Audio/Visual Remote Control Profile (AVRCP), Generic Access (GAP), Generic Object Exchange (GOEP), Handsfree (HFP), Headset (HSP), Heart Rate Profile, HID over GATT Profile (HOGP), Human Interface Device (HID), Message Access Profile (MAP), Object Push (OPP), Personal Area Networking Profile (PAN), Phone Book Access (PBAP)
Advanced Audio Distribution (A2DP), Audio/Visual Remote Control Profile (AVRCP), Generic Access (GAP), Handsfree (HFP), Headset (HSP), Message Access Profile (MAP), Object Push (OPP), Phone Book Access (PBAP)

Wi-Fi

802.11 a, b, g, n, ac, dual-band; MIMO, Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot

USB

Type-C (reversible), USB 3.1
Type-C (reversible), USB 2.0

Features

Charging, OTG, Video out
Charging, OTG

Location

GPS, A-GPS, Glonass, Galileo, BeiDou
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning

Sensors

Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer
Accelerometer, Gyroscope, Compass, Hall (for flip covers)

Other

NFC, ANT+
NFC, ANT+

Regulatory Approval

FCC approval

 
 

Date approved

Jan 11, 2018
Nov 28, 2019

FCC ID value: A3LSMG965U link
FCC ID value: A3LSMA515FN link

Measured SAR

 
 

Head

0.36 W/kg
0.89 W/kg

Body

0.79 W/kg
1.18 W/kg

Simultaneous Transmission

1.59 W/kg
1.56 W/kg

Wireless Router

1.04 W/kg
1.12 W/kg

Phablet

3.94 W/kg
2.76 W/kg

Shopping information

MSRP

$ 840
 

Availability

Officially announced

Feb 25, 2018
Dec 12, 2019
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