Samsung Galaxy Note 9 vs Samsung Galaxy A9 (2018)

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Main
Model
Price
Advantages

launch
Status
Announced
platform
OS
CPU
GPU
Chipset
camera
Rear
Front
Video
Features
display
Size
Resolution
Technology
Protection
Multitouch
battery
General
Charging
body
SIM card
Build
Weight
Dimensions
Miscellaneous
Colors
memory
Internal Storage & RAM
Card slot
comms
GPS
NFC
USB
WLAN
Radio
Bluetooth
features
Sensors
Messaging
Browser
sound
3.5mm jack
network
Speed
2G bands
3G bands
4G bands
Technology
GPRS
EDGE
Videos

Main
Model
Samsung Galaxy Note 9
Price
Advantages
PLATFORM GPU: Mali-G72 MP18 - EMEA Adreno 630 - USA/LATAM, China
DISPLAY Size: 6.4 inches, 103.2 cm2
DISPLAY Resolution: 1440 x 2960 pixels, 18.5:9 ratio (~516 ppi density)
BATTERY General: Li-Ion 4000 mAh, non-removable
MEMORY Internal Storage & RAM: 128GB 6GB RAM, 512GB 8GB RAM UFS 2.1
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Main
Model
Samsung Galaxy A9 (2018)
Price
$389.99
Advantages
COMMS Radio: FM radio
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launch
Status
Available. Released 2018, August 24
Announced
2018, August 09
platform
OS
Android 8.1 (Oreo), upgradable to Android 10, One UI 2.5
CPU
Octa-core (4x2.7 GHz Mongoose M3 & 4x1.8 GHz Cortex-A55) - EMEA Octa-core (4x2.8 GHz Kryo 385 Gold & 4x1.7 GHz Kryo 385 Silver) - USA/LATAM, China
GPU
Mali-G72 MP18 - EMEA Adreno 630 - USA/LATAM, China
Chipset
Exynos 9810 (10 nm) - EMEA Qualcomm SDM845 Snapdragon 845 (10 nm) - USA/LATAM, China
camera
Rear
Dual: 12 MP, f/1.5-2.4, 26mm (wide), 1/2.55", 1.4Âµm, dual pixel PDAF, OIS 12 MP, f/2.4, 52mm (telephoto), 1/3.4", 1.0Âµm, AF, OIS, 2x optical zoom
Front
Dual: 8 MP, f/1.7, 25mm (wide), 1/3.6", 1.22Âµm, AF 2 MP (dedicated iris scanner camera)
Video
4K@60fps (no OIS/EIS), 4K@30fps, 1080p@30/60/240fps, 720p@960fps, HDR, stereo sound rec., gyro-EIS & OIS
Features
LED flash, auto-HDR, panorama
display
Size
6.4 inches, 103.2 cm2
Resolution
1440 x 2960 pixels, 18.5:9 ratio (~516 ppi density)
Technology
Super AMOLED, HDR10
Protection
Corning Gorilla Glass 5
Multitouch
—
battery
General
Li-Ion 4000 mAh, non-removable
Charging
Fast charging 15W
body
SIM card
Single SIM
Build
Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame
Weight
201 g (7.09 oz, 0.44 lb)
Dimensions
161.9 x 76.4 x 8.8 mm (6.37 x 3.01 x 0.35 in)
Miscellaneous
Colors
Metallic Copper, Lavender Purple, Ocean Blue, Midnight Black, Pure White, Alpine White
memory
Internal Storage & RAM
128GB 6GB RAM, 512GB 8GB RAM UFS 2.1
Card slot
microSDXC (uses shared SIM slot)
comms
GPS
Yes, with A-GPS, GLONASS, BDS, GALILEO
NFC
Yes
USB
USB Type-C 3.1
WLAN
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Radio
No
Bluetooth
5.0, A2DP, LE, aptX
features
Sensors
Iris scanner, fingerprint (rear-mounted), accelerometer, gyro, proximity, compass, barometer, heart rate, SpO2
Messaging
—
Browser
—
sound
3.5mm jack
Yes
network
Speed
HSPA 42.2/5.76 Mbps, LTE-A (5CA) Cat18 1200/200 Mbps
2G bands
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) CDMA 800 / 1900 - USA
3G bands
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 CDMA2000 1xEV-DO - USA
4G bands
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66, 71 - Global 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 66, 71 - USA
Technology
—
GPRS
—
EDGE
—
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launch
Status
Available. Released 2018, November
Announced
2018, October
platform
OS
Android 8.0 (Oreo)
CPU
Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260)
GPU
Adreno 512
Chipset
Qualcomm SDM660 Snapdragon 660 (14 nm)
camera
Rear
24 MP, f/1.7, 27mm (wide), 1/2.8", 0.9Âµm, PDAF 10 MP f/2.4, 52mm (telephoto), 1/3.9", 1.0Âµm, AF, 2x optical zoom 8 MP, f/2.4, 12mm (ultrawide), 1/4.0", 1.12Âµm 5 MP, f/2.2, (depth)
Front
24 MP, f/2.0, 27mm (wide), 1/2.8", 0.9Âµm
Video
4K@30fps, 1080p@30fps
Features
LED flash, panorama, HDR
display
Size
6.3 inches, 100.7 cm2
Resolution
1080 x 2220 pixels, 18.5:9 ratio (~392 ppi density)
Technology
Super AMOLED capacitive touchscreen, 16M colors
Protection
—
Multitouch
Yes
battery
General
Non-removable Li-Ion 3800 mAh battery
Charging
—
body
SIM card
Dual SIM
Build
—
Weight
183 g (6.46 oz, 0.4 lb)
Dimensions
162.5 x 77 x 7.8 mm (6.40 x 3.03 x 0.31 in)
Miscellaneous
Colors
Caviar Black, Lemonade Blue, Bubblegum Pink
memory
Internal Storage & RAM
128 GB, 6/8 GB RAM
Card slot
microSD, up to 512 GB (dedicated slot)
comms
GPS
Yes, with A-GPS, GLONASS, BDS, GALILEO
NFC
Yes
USB
2.0, Type-C 1.0 reversible connector
WLAN
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Radio
FM radio
Bluetooth
5.0, A2DP, LE
features
Sensors
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Messaging
SMS(threaded view), MMS, Email, Push Email, IM
Browser
HTML5 - ANT+ - Fast battery charging - MP4/WMV/H.265 player - MP3/WAV/WMA/eAAC+/FLAC player - Photo/video editor - Document viewer
sound
3.5mm jack
Yes
network
Speed
HSPA 42.2/5.76 Mbps, LTE-A (3CA) Cat9 450/50 Mbps
2G bands
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands
HSDPA 850 / 900 / 1900 / 2100
4G bands
LTE
Technology
GSM / HSPA / LTE
GPRS
Yes
EDGE
Yes
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Summary

The Samsung Galaxy Note 9 has better GPU Mali-G72 MP18 - EMEA Adreno 630 - USA/LATAM, China thanks to which the owner will be able to run more number of new games.

The Samsung Galaxy Note 9 has 4K UHD (1440 x 2960 pixels) display resolution with 514 ppi pixel density which is more high than the Samsung Galaxy A9 (2018) 4K UHD (1080 x 2220 pixels) display resolution with 391 ppi pixel density. It makes this model a better choice for playing games. The Samsung Galaxy A9 (2018) model weight 183g which is 18g less than the weight of the Samsung Galaxy Note 9.

The Samsung Galaxy Note 9 has a better battery life as it is equipped with 4000mah battery which is 200mah bigger compared to the Samsung Galaxy A9 (2018) cell. It means that this model will live for a longer time without charging.

Taking into account the above-mentioned differences the Galaxy Note 9 is the best choice. Check the list of the best offers on Amazon.