Samsung Galaxy A31 vs Samsung Galaxy A51 vs Samsung Galaxy Note 9
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Last Updated:
15th Nov 2020
Key Feature Comparison
Samsung Galaxy A31
₹17,999
8/10
Samsung Galaxy A51
₹22,499
8/10
Samsung Galaxy Note 9
₹61,890
8/10
Samsung Galaxy A31
8/10
₹17,999
8/10
VS
Samsung Galaxy A51
8/10
₹22,499
8/10
VS
Samsung Galaxy Note 9
8/10
₹61,890
8/10
Display
Screen Size
6.4 inches
6.5 inches
6.4 inches
Display Type
Super AMOLED capacitive touchscreen
Super AMOLED capacitive touchscreen
Super AMOLED capacitive touchscreen
Display Resolution
1080 x 2400 pixels
1080 x 2400 pixels
1440 x 2960 pixels
Pixel Density
411 ppi
405 ppi
516 ppi
Aspect Ratio
20:09
20:9
18.5:9
Screen to Body Ratio
84.90%
87.4%
83.40%
Protection
-
Corning Gorilla Glass 3
Corning Gorilla Glass 5
Battery
Battery Capacity
5000 mAh battery
4000 mAh battery
4000 mAh
User Replaceable
Non-removable
Non-removable
Non-removable
Charging
Fast charging 15W
Fast charging 15W
Fast battery charging 15W (Quick Charge 2.0)Qi/PMA wireless charging (market dependent)
Battery Type
Li-Po
Li-Po
Li-Ion
Talk Time
-
Up to 32 (Hours 4G LTE)
-
Music Time
-
Up to 87 (Hours)
-
Communications
WLAN
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
GPS
Yes, with A-GPS, GLONASS, GALILEO, BDS
Yes, with A-GPS, GLONASS, GALILEO, BDS
Yes, with A-GPS, GLONASS, BDS, GALILEO
Radio
FM radio, RDS, recording
FM radio
No
USB
2.0, Type-C 1.0 reversible connector, USB On-The-Go
2.0, Type-C 1.0 reversible connector, USB On-The-Go
3.1, Type-C 1.0 reversible connector
NFC
Yes
Yes
Yes
SIM
Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)
Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)
Single SIM (Nano-SIM) or Hybrid Dual SIM (Nano-SIM, dual stand-by)
Network Support
GSM / HSPA / LTE
GSM / HSPA / LTE
GSM / CDMA / HSPA / EVDO / LTE
Miscellaneous Features
Sensors
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Fingerprint (under display, Accelerometer, Fingerprint Sensor, Gyro Sensor, Geomagnetic Sensor, Hall Sensor, Light Sensor, Virtual Proximity Sensing
Iris scanner, fingerprint (rear-mounted), accelerometer, gyro, proximity, compass, barometer, heart rate, SpO2
Sound
HeadPhone Jack
Yes
Yes
Yes
Loudspeaker
Yes
Yes
Yes
Audio Features
Dolby Atmos
Dolby Atmos
32-bit/384kHz audioActive noise cancellation with dedicated mic
Memory & Storage
RAM/Internal Storage
128GB 6GB RAM
128GB 6GB RAM, 128GB 8GB RAM
512 GB, 8 GB RAM or 128 GB, 6 GB RAM
Expandable Memory
microSDXC (dedicated slot), Up to 512GB Expandable
microSDXC (dedicated slot)
microSD, up to 1 TB (uses shared SIM slot) - dual SIM model only
Launch
Announced On
2020, March 24
2019, December
2018, August
Status
Available. Released 2020, June 04
Available. Released 2020, January 29
Available. Released 2018, August
Performance
OS
Android 10, One UI 2.0
Android 10, One UI 2.1
Android 8.1 (Oreo), upgradable to Android 9.0 (Pie) One UI
CPU
Octa-core (2x2.0 GHz, 6x1.7 GHz)
Octa-core (4x2.3 GHz Cortex-A73 4x1.7 GHz Cortex-A53)
Octa-core (4x2.7 GHz Mongoose M3 4x1.8 GHz Cortex-A55)
GPU
-
Mali-G72 MP3
Mali-G72 MP18
Chipset GP
-
Exynos 9611 (10nm)
Exynos 9810 (10 nm)
Front Camera
Single Camera
20 MP, f/2.2, (wide)
32 MP, f/2.2, 26mm (wide), 1/2.8, 0.8 micron
8 MP, f/1.7, 25mm (wide), 1/3.6, 1.22 micron, AF
Front Camera Video
1080p30fps
1080p30fps
1440p30fps
Front Camera Features
-
HDR
Dual video call, Auto-HDR
Design
Height
6.27 inches
6.24 inches
6.37 inches
Width
2.88 inches
2.90 inches
3.01 inches
Thickness
0.34 inches
0.31 inches
0.35 inches
Weight
185 g
172 g
201 g
Color
Prism Crush Black, Prism Crush Blue, Prism Crush White
Prism Crush Black, Prism Crush White, Prism Crush Blue
Metallic Copper, Lavender Purple, Ocean Blue, Midnight Black, Pure White, Alpine White
Build
-
Glass front (Gorilla Glass 3), plastic back, plastic frame
Front/back glass (Gorilla Glass 5), aluminum frame
Back Camera
Quad Camera
48 MP, f/2.0, 26mm (wide), 1/2.0, 0.8 micron8 MP, f/2.2, 13mm (ultrawide), 1/4.0, 1.12 micron5 MP, f/2.4, (macro)5 MP, f/2.4, (depth)
48 MP, f/2.0, 26mm (wide), 1/2.0, 0.8 micron12 MP, f/2.2, 12mm (ultrawide)5 MP, f/2.4, 25mm (macro), 1/5.0, 1.12 micron5 MP, f/2.2, (depth)
-
Autofocus
PDAF
PDAF
dual pixel PDAF, AF
Back Camera Video
1080p30fps
4K30fps, 1080p30/120fps; gyro-EIS
2160p60fps, 1080p240fps, 720p960fps, HDR, dual-video rec.
Back Camera Features
LED flash, panorama, HDR
LED flash, panorama, HDR
LED flash, auto-HDR, panorama
General
Bluetooth
5.0, A2DP, LE
5.0, A2DP, LE
5.0, A2DP, LE, aptX
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