Samsung Galaxy Note9 vs Samsung Galaxy A21s Specs Comparison

Availability

Officially announced
Aug 09, 2018	May 15, 2020
Prices (MSRP)
6GB/128GB - $1000	€240

Design

Dimensions
6.37 x 3.01 x 0.35 inches 161.9 x 76.4 x 8.8 mm	6.44 x 2.96 x 0.35 inches 163.7 x 75.3 x 8.9 mm
Weight
7.09 oz / 201.0 g	6.77 oz / 192.0 g
Materials
Back: Glass (Corning Gorilla Glass 5) Frame: Aluminum
Resistance
Water, Dust; IP68
Biometrics
Iris scanner, 2D Face unlock, Fingerprint (touch)	2D Face unlock, Fingerprint (touch)
Features
Notification light, Stylus
Keys
Left: Volume control, Lock/Unlock key; Right: Other	Right: Volume control, Lock/Unlock key
Colors
Midnight black, Ocean blue, Cloud silver, Lavender purple	Black, White, Blue, Red

Display

Size
6.4-inch, 83.51% screen-to-body	6.5-inch, 82.94% screen-to-body
Type
Super AMOLED, HDR	TFT
Resolution
2960x1440px, 18.5:9 ratio, 516 PPI	1600x720px, 20:9 ratio, 270 PPI
Protection
Corning Gorilla Glass 5

PhoneArena Display Test

Bright Max (20% APL)
Untested	Untested
Bright Min
2 (Good)	4.6 (Poor)

Learn more on our PhoneArena Display Test Results page.

Hardware

System chip
Snapdragon 845 SDM845 (10 nm)	Samsung Exynos 850
Processor
Octa-core Kryo 385	Octa-core 8x2.0GHz Cortex-A55
GPU
Adreno 630	Mali-G76
Memory
6GB (LPDDR4)/128GB 8GB/512GB	3GB (LPDDR4)/32GB (eMMC 5.1) 4GB/64GB 6GB/64GB
Storage expansion
microSDXC up to 512 GB	microSDXC up to 512 GB
OS
Android (10, 9.0 Pie, 8.1 Oreo)	Android (10)

Battery

Type
4000 mAh, Li - Ion	5000 mAh, Li - Polymer
Charging
Qualcomm Quick Charge 2.0, Samsung Adaptive Fast Charging Qi and Powermat wireless charging	Fast charging

PhoneArena Battery Tests

Battery Life Estimate

Untested

Browsing

Untested

Video

Untested

Gaming

Untested

Battery Life Estimate

Untested

Browsing

Untested

Video

11h 9min

Gaming

7h 48min

Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Dual camera	Quad camera
Main camera
12 MP (OIS, PDAF) Aperture size: F1.5/F2.4 Focal length: 26 mm Sensor size: 1/2.55" Pixel size: 1.4 μm	48 MP (PDAF) Aperture size: F2.0 Focal length: 26 mm Sensor size: 1/2" Pixel size: 0.8 μm
Second camera
12 MP (Telephoto, OIS, Autofocus) Optical zoom: 2.0x Aperture size: F2.4 Focal Length: 52 mm Sensor size: 1/3.4" Pixel size: 1 μm	8 MP (Ultra-wide) Aperture size: F2.2 Sensor size: 1/4" Pixel size: 1.12 μm
Third camera
	2 MP (Macro) Aperture size: F2.4
Fourth camera
	2 MP (Depth information) Aperture size: F2.4
Flash
LED	LED
Video recording
4K UHD (60 fps), 1080p (240 fps), 720p (960 fps) Time-lapse video, Hyperlapse, Continuous autofocus, Object tracking, EIS	1080p (30 fps)
Front
8 MP (Wide Angle, Autofocus) Video capture: QHD (30 fps)	13 MP Video capture: 1080p

Connectivity & Features

Bluetooth
5.0	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, Proximity sensor
Hearing aid compatible
M4/T3
Location
GPS, A-GPS, Glonass, Cell ID, Wi-Fi positioning	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Other
NFC, ANT+	NFC

Multimedia

Headphones
3.5mm jack	3.5mm jack
Speakers
Earpiece, Multiple speakers	Earpiece, Loudspeaker
Features
32-Bit DAC, Dolby Atmos
Screen mirroring
	Wireless screen share

Cellular

LTE Bands
1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 29, 30, 66, 71	1, 2, 3, 5, 7, 8, 20, 28
4G (TDD) Bands
38, 39, 40, 41, 46	38, 40, 41
3G Bands
1, 2, 4, 5, 8	1, 2, 5, 8
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
Dual SIM
	Yes
SIM type
Nano SIM	Nano SIM
HD Voice
Yes
VoLTE
Yes

Regulatory Approval

FCC approval
Date approved: Jul 03, 2018 FCC ID value: A3LSMN960U
Measured SAR
Head: 0.27 W/kg Body: 0.76 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 1.35 W/kg Phablet: 3.90 W/kg

Alternative variants

With 512 GB storage

Memory	8GB/512GB
Prices (MSRP)	$1250

with 4GB RAM

Memory	4GB/64GB

International version

System chip	Samsung Exynos 9 9810 (10 nm)
Processor	Octa-core 2900 MHz Exynos M3 and ARM Cortex-A55
GPU	Mali-G72 MP18
LTE 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
Dual SIM	Yes
Location	GPS, A-GPS, Glonass, Galileo, BeiDou
FCC approval	Date approved: Jul 02, 2018 FCC ID value: A3LSMN960F
Measured SAR	Head: 0.23 W/kg Body: 0.85 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 1.40 W/kg Phablet: 3.98 W/kg

with 6GB RAM

Memory	6GB/64GB

for Verizon

LTE Bands	2, 3, 4, 5, 7, 8, 13, 18, 19, 20, 26, 28, 66
3G Bands	5, 8, 2, 1

for AT&T

LTE Bands	1, 2, 3, 4, 5, 7, 8, 12, 14, 18, 19, 20, 28, 29, 30, 66

for T-Mobile

LTE Bands	1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 25, 27, 66, 71
3G Bands	5, 4, 2, 1

for Sprint

LTE Bands	1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 66, 71

for U.S. Cellular

LTE Bands	2, 4, 5, 8, 12, 13, 18, 19, 25, 66, 71
4G (TDD) Bands	38, 39, 40, 46
3G Bands	5, 8, 2, 1

Discover more

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