Samsung Galaxy S8 vs Samsung Galaxy A40 Specs Comparison

Availability

Officially announced
Mar 29, 2017	Apr 10, 2019

Design

Dimensions
5.86 x 2.68 x 0.31 inches 148.9 x 68.1 x 8.0 mm	5.69 x 2.72 x 0.31 inches 144.4 x 69.2 x 7.9 mm
Weight
5.47 oz / 155.0 g	4.94 oz / 140.0 g
Materials
Back: Glass (Corning Gorilla Glass 5) Frame: Aluminum	Back: Plastic Frame: Plastic
Resistance
Water, Dust; IP68
Biometrics
Iris scanner, 2D Face unlock, Fingerprint (touch)	2D Face unlock, Fingerprint (touch)
Keys
Left: Volume control, Other; Right: Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Midnight black, Orchid gray, Arctic silver, Coral blue, Maple gold, Rose pink, Burgundy red	Black, Coral, Blue, White

Display

Size
5.8-inch, 84.26% screen-to-body	5.9-inch, 85.73% screen-to-body
Type
Super AMOLED, HDR	Super AMOLED
Resolution
2960x1440px, 18.5:9 ratio, 570 PPI	2340x1080px, 19.5:9 ratio, 437 PPI
Protection
Corning Gorilla Glass 5	Corning Gorilla Glass 3

PhoneArena Display Test

Bright Max (20% APL)
Untested	Untested
Bright Min
1 (Excellent)	Untested

Learn more on our PhoneArena Display Test Results page.

Hardware

System chip
Snapdragon 835 MSM8998 (10 nm)	Exynos 7904 (14 nm)
Processor
Octa-core 2350 MHz Kryo 280	Octa-core 1800 MHz ARM Cortex-A73 and ARM Cortex-A53
GPU
Adreno 540	Mali-G71 MP2
Memory
4GB (LPDDR4)/64GB	4GB (LPDDR4)/64GB
Storage expansion
microSDXC up to 256 GB	microSDXC up to 512 GB
OS
Android (9.0 Pie, 8.0 Oreo, 7.0 Nougat)	Android (11, 10, 9.0 Pie)

Battery

Type
3000 mAh, Li - Ion	3100 mAh, Li - Polymer
Charging
Qualcomm Quick Charge 2.0 Qi and Powermat wireless charging	Samsung Adaptive Fast Charging

Camera

Rear
Single camera	Dual camera
Main camera
12 MP (OIS, PDAF) Aperture size: F1.7 Focal length: 26 mm Sensor size: 1/2.55" Pixel size: 1.4 μm	16 MP (PDAF) Aperture size: F1.7 Focal length: 27 mm Sensor size: 1/2.8" Pixel size: 1.12 μm
Second camera
	5 MP (Ultra-wide) Aperture size: F2.2 Focal Length: 13 mm Sensor size: 1/5" Pixel size: 1.12 μm
Flash
LED	LED
Video recording
4K UHD (30 fps), QHD, 1080p (60 fps), 720p (240 fps) HDR, Time-lapse video, Hyperlapse, Continuous autofocus, Object tracking, Picture-taking during video recording, Video light, EIS, Video calling, Video sharing	1080p (30 fps) Hyperlapse, Video calling, Video sharing
Front
8 MP (Wide Angle, Autofocus, HDR) Video capture: QHD	25 MP Video capture: 1080p

Connectivity & Features

Bluetooth
5.0, Yes	5.0
WLAN
a,b,g,n,ac,dual-band MIMO, Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac	a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac
USB
Type-C, USB 3.1	Type-C, USB 2.0
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer, Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Compass, Hall (for flip covers), Ambient light sensor, Proximity sensor
Hearing aid compatible
M3/T3
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Other
NFC, ANT+, UMA (Wi-Fi Calling), Tethering, Computer sync, OTA sync	NFC, ANT+, VoIP, Tethering, Computer sync, OTA sync

Discover more

Full Specs Samsung Galaxy S8 Specs PA Review Samsung Galaxy S8 Review

Full Specs Samsung Galaxy A40 Specs

Multimedia

Headphones
3.5mm jack	3.5mm jack
Speakers
Earpiece, Loudspeaker	Earpiece, Loudspeaker
Features
32-Bit DAC, aptX-HD	Dolby Atmos, Album art cover, Background playback
Screen mirroring
DLNA,Wireless screen share,MHL	Wireless screen share
Radio
	FM
Additional microphone(s)
Noise cancellation, Video recording	Noise cancellation

Cellular

4G (FDD) Bands
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 30, 66	1, 3, 5, 7, 8, 20
4G (TDD) Bands
38, 39, 40, 41	38, 40, 41
3G Bands
1, 2, 5, 8	1, 2, 5, 8
Data Speed
LTE-A Pro Cat 16 (1000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS	LTE-A Cat 12/13 (600/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
	Yes
SIM type
Nano SIM	Nano SIM
HD Voice
Yes

Regulatory Approval

FCC approval
Date approved: Apr 06, 2017 FCC ID value: A3LSMG950U	Date approved: Mar 08, 2019 FCC ID value: A3LSMA405FN
Measured SAR
Head: 0.49 W/kg Body: 0.48 W/kg Simultaneous Transmission: 1.53 W/kg Wireless Router: 0.46 W/kg	Head: 0.51 W/kg Body: 0.46 W/kg Simultaneous Transmission: 1.02 W/kg Wireless Router: 0.61 W/kg

Alternative variants

International version

System chip	Samsung Exynos 9 Octa 8895 (10 nm)
Processor	Octa-core 2300 MHz Exynos M2 "Mongoose" and ARM Cortex-A53
GPU	Mali-G71 MP20
4G (FDD) Bands	1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66
4G (TDD) Bands	38, 39, 40, 41
FCC approval	Date approved: Sep 05, 2017 FCC ID value: A3LSMG950F
Measured SAR	Head: 0.38 W/kg Body: 0.75 W/kg Simultaneous Transmission: 1.55 W/kg Wireless Router: 1.09 W/kg

for T-Mobile

4G (FDD) Bands	2, 4, 5, 12
3G Bands	5, 4, 2, 1
VoLTE	Yes

for Verizon Wireless

4G (FDD) Bands	2, 3, 4, 5, 7, 8, 13, 18, 19, 20, 26, 28
4G (TDD) Bands	38, 39, 40, 41
3G Bands	5, 8, 2, 1

for U.S. Cellular

4G (FDD) Bands	2, 4, 5, 8, 12, 13, 17, 18, 19, 25
4G (TDD) Bands	38, 39, 40
Data Speed	LTE-A, HSPA, UMTS

with Dual SIM

System chip	Samsung Exynos 9 Octa 8895 (10 nm)
Processor	Octa-core 2500 MHz Exynos M2 "Mongoose"and ARM Cortex-A53
GPU	Mali-G71 MP20
Dual SIM	Yes