Samsung Galaxy S9+ vs Samsung Galaxy A8 (2018) vs Samsung Galaxy S21 Ultra

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

Display

Size:

6.2 inches
5.6 inches
6.8 inches

Resolution:

2960 x 1440 pixels, 18.5:9 ratio, 531 PPI
2220 x 1080 pixels, 18.5:9 ratio, 441 PPI
3200 x 1440 pixels, 20:9 ratio, 516 PPI

Technology:

Super AMOLED
Super AMOLED
Dynamic AMOLED

Screen-to-body:

83.68 %
75.60 %
89.33 %

Peak brightness:

1500 cd/m2 (nit)

Features:

HDR support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor
Scratch-resistant glass (Corning Gorilla Glass 4), Ambient light sensor, Proximity sensor
120Hz refresh rate (adaptable), HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor

Hardware

System chip:

Qualcomm Snapdragon 845 SDM845
Samsung Exynos 5 Octa 7885
Qualcomm Snapdragon 888

Processor:

Octa-core, 2800 MHz, Kryo 385, 64-bit, 10 nm
Octa-core, 2200 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm
Octa-core, 2840 MHz, Kryo 680, 64-bit, 5 nm

GPU:

Adreno 630
Mali-G71
Adreno 660

RAM:

6GB LPDDR4
4GB LPDDR4
12GB LPDDR5

Internal storage:

64GB
64GB
128GB (UFS 3.1), not expandable

Storage expansion:

microSDXC up to 400 GB
microSDXC up to 256 GB

Device type:

Smartphone
Smartphone
Smartphone

OS:

Android (10, 9.0 Pie, 8.0 Oreo), Samsung One UI
Android (9.0 Pie, 8.0 Oreo, 7.1 Nougat), Samsung One UI
Android (11), Samsung One UI

Battery

Capacity:

3500 mAh
3000 mAh
5000 mAh

Type:

Li - Ion, Not user replaceable
Li - Polymer, 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
Qualcomm Quick Charge 2.0, USB Power Delivery, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging, Reverse wireless charging

Max charge speed:

Wired: 25.0W; Wireless: 15.0W

Camera

Rear:

Dual camera
Single camera
Quad camera

Main camera:

12 MP (OIS, PDAF)
16 MP (PDAF)
108 MP (OIS, Laser and PDAF)

Specifications:

Aperture size: F1.5/F2.4; Focal length: 26 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm
Aperture size: F1.7
Aperture size: F1.8; Focal length: 26 mm; Sensor size: 1/1.33"; Pixel size: 0.8 μm

Second camera:

12 MP (Telephoto, OIS, Autofocus)
10 MP (Telephoto, OIS, PDAF)

Specifications:

Optical zoom: 2.0x; Aperture size: F2.4; Focal Length: 52 mm; Sensor size: 1/3.6"; Pixel size: 1 μm
Optical zoom: 3.0x; Aperture size: F2.4; Focal Length: 70 mm; Sensor size: 1/3.2"; Pixel size: 1.22 μm

Third camera:

12 MP (Ultra-wide, PDAF)

Specifications:

Aperture size: F2.2; Focal Length: 13 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm

Fourth camera:

10 MP (Periscope, OIS, PDAF)

Specifications:

Optical zoom: 10.0x; Aperture size: F4.9; Focal Length: 240 mm; Sensor size: 1/3.2"; Pixel size: 1.22 μm

Video recording:

3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)
1920x1080 (Full HD) (30 fps)
7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)

Features:

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

Front:

8 MP (Autofocus, HDR)
16 MP (Dual-Camera)
40 MP (PDAF, HDR)

Video capture:

2560x1440 (QHD) (30 fps)
1920x1080 (Full HD)
3840x2160 (4K UHD) (60 fps)

Design

Dimensions:

6.22 x 2.91 x 0.33 inches (158.1 x 73.8 x 8.5 mm)
5.87 x 2.78 x 0.33 inches (149.2 x 70.6 x 8.4 mm)
6.50 x 2.98 x 0.35 inches (165.1 x 75.6 x 8.9 mm)

Weight:

6.67 oz (189.0 g)
6.07 oz (172.0 g)
8.04 oz (229.0 g)

Materials:

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

Resistance:

Water, Dust; IP68
Water, Dust; IP68
Water, Dust; IP68

Biometrics:

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

Features:

Notification light
Notification light

Keys:

Left: Volume control, Other; Right: Lock/Unlock key
Left: Volume control; 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
Black, Gold, Orchid grey, Blue
Phantom black, Silver

Cellular

5G:

n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, Sub-6, mmWave

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

LTE (TDD):

Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46
Bands 38(2600), 40(2300), 41(2600+)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600)

UMTS:

Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)
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 Pro Cat 18 (1200/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA
LTE-A Cat 11 (600/75 Mbit/s), HSPA, HSUPA
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS

Dual SIM:

Yes

SIM type:

Nano SIM
Nano SIM
Nano SIM

Multimedia

Headphones:

3.5mm jack
3.5mm jack
No 3.5mm jack

Speakers:

Earpiece, Multiple speakers
Earpiece, Loudspeaker
Earpiece, Multiple speakers

Features:

32-Bit DAC, Dolby Atmos, aptX-HD
Album art cover, Background playback
32-Bit DAC, Dolby Atmos, aptX, Dolby Digital, Dolby Digital Plus

Screen mirroring:

Wireless screen share
Wireless screen share
Wireless screen share

Radio:

FM
FM
FM, Stereo, RDS

Additional microphone(s):

for Noise cancellation
for Noise cancellation
for Noise cancellation, Video recording

Connectivity & Features

Bluetooth:

5.0
5.0
5.1

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
802.11 a, b, g, n, ac, ax (Wi-Fi 6), dual-band; MIMO, Wi-Fi Direct, Hotspot

USB:

Type-C (reversible), USB 3.1
Type-C (reversible), USB 2.0
Type-C (reversible), USB 3.2

Features:

Charging, OTG, Video out
Charging, Mass storage device
Charging, Headphones port, OTG, Video out

Location:

GPS, A-GPS, Glonass, Galileo, BeiDou
GPS, A-GPS, Glonass, 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), Barometer
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer

Other:

NFC, ANT+
NFC, ANT+, VoIP, Tethering, Computer sync, OTA sync
NFC, ANT+

Hearing aid compatible:

M3, T3

Regulatory Approval

FCC approval:

Date approved:

Jan 11, 2018
Nov 14, 2017
Dec 22, 2020

FCC ID value:

A3LSMG965U link
A3LSMA530F link
A3LSMG998U link

Measured SAR:

Head:

0.36 W/kg
0.26 W/kg
0.77 W/kg

Body:

0.79 W/kg
0.76 W/kg
1.02 W/kg

Simultaneous Transmission:

1.59 W/kg
1.54 W/kg
1.59 W/kg

Wireless Router:

1.04 W/kg
0.98 W/kg
1.16 W/kg

Phablet:

3.94 W/kg
3.15 W/kg

Buyers information

Price:

$ 840
$ 1200

In The Box:

C to C Data Cable, Ejection Pin

Availability

Officially announced:

Feb 25, 2018
Dec 19, 2017
Jan 14, 2021
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