Samsung s9 vs Samsung a51 comparison

	Samsung Galaxy S9	Samsung Galaxy A51
Network
Technology	LTE/GSM/CDMA/HSPA/EVDO	LTE/GSM/HSPA
2G bands	SIM1 and SIM2 (GSM 850/900/1800/1900)	SIM1 and SIM2 (GSM 850/900/1800/1900)
3G bands	HSDPA 850/900/1700 (AWS) 1900/2100	HSDPA 850/900/1900/2100/850/900/1700 (AWS) 1900/2100
4G bands	1,2,3,4,7,8,12,13,14,17,18,19,20,25,26,28,29,30,32,38,39,40,41,66,71	1,2,3,4,5,7,8,12,13,17,20,25,26,28,38,40,41,66
5G bands	N/A	N/A
Network Type Speed	LTE-A (6CA) Cat18 (1200/200 Mbps), HSPA (42.2/5.76 Mbps)	LTE-A, HSPA (42.2/5.76 Mbps)
Launch
Launch Date	February 25, 2018	April 20, 2020
Status	Available	Available

Body
Weight	163 g	172g
Build	Glass Frant and Back (Gorilla Glass 5), Aluminum frame	Glass Front, Plastic Back and Plastic Frame
SIM	Hybrid Dual SIM (Nano-SIM, dual stand-by), Single SIM (Nano-SIM)	Dual SIM (Nano-SIM), Single SIM (Nano-SIM)
Display
Display	Super AMOLED	Super AMOLED
Size	5.8 Inch	6.5 Inch
Resolution	(1440x2960) PIxels	(1080x2400) Pixels
Platform
OS	Dual-Dand, Wi-Fi Direct, hotspot, Wi-Fi 802.11 (a/b/g/n/ac)	Android 10
CPU	Octa-Core (4x1.7 GHz Cortex-A55 / 4x2.8 GHz Mongoose M3)	Octa Core (4x1.7 GHz Cortex-A53 / 4x2.3 GHz Cortex-A73)
GPU	Mali-G72 MP18	Mali-G72 MP3
Memory
Card slot	MicroSD (Uses Shared SIM Slot)	Micro SD (Up To 512GB)
Main Camera
Features	Auto-HDR, Panorama, and LED flash	Face Detection, Panorama, Geo-tagging, Touch Focus, and HDR
Video	4K Video Recording (60fps) 1080p Video Recording (30/60/240fps) 720p Video Recording (960fps)	4K Video Recording (30fps) 1080p Video Recording (30/120fps)
Sound
Loudspeaker	Yes	N/A
3.5mm jack	Yes	Yes
Comms
WLAN	Wi-Fi 802.11 (a/b/g/n/ac), Dual-Band, Wi-Fi Direct, and Hotspot	Hotspot, Wi-Fi 802.11 (a/b/g/n/ac), Dual-Band, and Wi-Fi Direct
Bluetooth	Bluetooth v5.0	Bluetooth v5.0
GPS	Yes, with A-GPS, BDS, GALILEO, and GLONASS	Yes, With A-GPS, GALILEO, Beidou, BDS, and GLONASS
NFC	N/A	Yes
RADIO	Yes	Yes
USB	Type-C 3.1	Type-C 2.0
Features

Sensors	Iris scanner / Fingerprint (rear-mounted) / Barometer / Heart Rate / SpO2 / Accelerometer / Gyro / Proximity / Compass	Accelerometer / Fingerprint Sensor / Gyro Sensor / Geomagnetic Sensor / Hall Sensor / Light Sensor / Virtual Proximity Sensing
Battery
Type	Li-Ion 3000 mA (Non-removable)	Li-Po 4000 mAh (Non-removable)
Charging	15W, Fast Charging	Fast Charging (15W)
Misc
Colors	Lilac Purple, Burgundy Red, Sunrise Gold, Ice Blue, Midnight Black, Coral Blue, and Titanium Gray	Prism Crush Blue, Prism Crush Pink, Prism Crush Black, and Prism Crush White
Model	SM-G9600, SM-G960U1, SM-G960N, SCV38, SM-G960X, SC-02K, SM-G960F, SM-G960, SM-G960F, SM-G960U, SM-G960W	SM-A515FZIWPAK
Price	91,000	49,999
Brand	Samsung	Samsung
Model	Samsung S9	Samsung A51

Samsung Galaxy S9	Samsung Galaxy A51
Network
Technology
2G bands
SIM1 and SIM2 (GSM 850/900/1800/1900)	SIM1 and SIM2 (GSM 850/900/1800/1900)
3G bands
HSDPA 850/900/1700 (AWS) 1900/2100	HSDPA 850/900/1900/2100/850/900/1700 (AWS) 1900/2100
4G bands
1,2,3,4,7,8,12,13,14,17,18,19,20,25,26,28,29,30,32,38,39,40,41,66,71	1,2,3,4,5,7,8,12,13,17,20,25,26,28,38,40,41,66
5G bands
N/A	N/A
Network Type Speed
LTE-A (6CA) Cat18 (1200/200 Mbps), HSPA (42.2/5.76 Mbps)	LTE-A, HSPA (42.2/5.76 Mbps)
Launch
Launch Date
February 25, 2018	April 20, 2020
Status
Available	Available

Body
Weight
163 g	172g
SIM
Hybrid Dual SIM (Nano-SIM, dual stand-by), Single SIM (Nano-SIM)	Dual SIM (Nano-SIM), Single SIM (Nano-SIM)
Display
Display
Super AMOLED	Super AMOLED
Size
5.8 Inch	6.5 Inch
Resolution
(1440x2960) PIxels	(1080x2400) Pixels
Platform
OS
Dual-Dand, Wi-Fi Direct, hotspot, Wi-Fi 802.11 (a/b/g/n/ac)	Android 10
Chipset
Exynos 9810 (10 nm)	Exynos 9611
CPU
Octa-Core (4x1.7 GHz Cortex-A55 / 4x2.8 GHz Mongoose M3)	Octa Core (4x1.7 GHz Cortex-A53 / 4x2.3 GHz Cortex-A73)
GPU
Mali-G72 MP18	Mali-G72 MP3
Memory
Card slot
MicroSD (Uses Shared SIM Slot)	Micro SD (Up To 512GB)
Internal
64GB 4GB RAM 128GB 4GB RAM	128GB 6GB RAM 128GB 8GB RAM
Main Camera

Features
Auto-HDR, Panorama, and LED flash	Face Detection, Panorama, Geo-tagging, Touch Focus, and HDR
Video
4K Video Recording (60fps) 1080p Video Recording (30/60/240fps) 720p Video Recording (960fps)	4K Video Recording (30fps) 1080p Video Recording (30/120fps)
Selfie Camera
Front Camera
8MP (F/1.7 Aperture) Wide	32MP (F/2.2 Aperture) Wide
Video
4K Video Recording (60fps) 1080p Video Recording (30/60/240fps) 720p Video Recording (960fps)	4K Video Recording (30fps) 1080p Video Recording (30/120fps)
Sound
Loudspeaker
Yes	N/A
3.5mm jack
Yes	Yes
Comms
WLAN
Wi-Fi 802.11 (a/b/g/n/ac), Dual-Band, Wi-Fi Direct, and Hotspot	Hotspot, Wi-Fi 802.11 (a/b/g/n/ac), Dual-Band, and Wi-Fi Direct
WLAN
Wi-Fi 802.11 (a/b/g/n/ac), Dual-Band, Wi-Fi Direct, and Hotspot	Hotspot, Wi-Fi 802.11 (a/b/g/n/ac), Dual-Band, and Wi-Fi Direct
Bluetooth
Bluetooth v5.0	Bluetooth v5.0
GPS
Yes, with A-GPS, BDS, GALILEO, and GLONASS	Yes, With A-GPS, GALILEO, Beidou, BDS, and GLONASS
NFC
N/A	Yes
RADIO
Yes	Yes
USB
Type-C 3.1	Type-C 2.0
Features
Sensors
Iris scanner / Fingerprint (rear-mounted) / Barometer / Heart Rate / SpO2 / Accelerometer / Gyro / Proximity / Compass	Accelerometer / Fingerprint Sensor / Gyro Sensor / Geomagnetic Sensor / Hall Sensor / Light Sensor / Virtual Proximity Sensing
Battery
Type
Li-Ion 3000 mA (Non-removable)	Li-Po 4000 mAh (Non-removable)
Charging
15W, Fast Charging	Fast Charging (15W)
Misc
Colors
Lilac Purple, Burgundy Red, Sunrise Gold, Ice Blue, Midnight Black, Coral Blue, and Titanium Gray	Prism Crush Blue, Prism Crush Pink, Prism Crush Black, and Prism Crush White
Model
SM-G9600, SM-G960U1, SM-G960N, SCV38, SM-G960X, SC-02K, SM-G960F, SM-G960, SM-G960F, SM-G960U, SM-G960W	SM-A515FZIWPAK
Price
91000	49999
Brand
Samsung	Samsung
Model
Samsung S9	Samsung A51