Samsung Galaxy A10 vs Samsung Galaxy A20 vs Samsung Galaxy A31

General Info

Manufacturer
Samsung	Samsung	Samsung
Announced
February 2019	March 2019	2020, March 24
Status
Coming Soon - March 2019	Coming Soon - April 2019	Coming Soon - April 2020
Colors
Blue, Black, Red	Blue, Black	Prism Crush Black, Prism Crush Blue, Prism Crush Red, Prism Crush White
Form Factor
Candybar	Candybar	Candybar
Dimension
-	-	159.3 x 73.1 x 8.6 mm (6.27 x 2.88 x 0.34 in)
Weight
-	-	185 g (6.53 oz)
SIM Type
Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by)	Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by)	Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by)
2G Network
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM only)	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM only)	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
3G Network
HSDPA 850 / 900 / 1900 / 2100	HSDPA 850 / 900 / 1900 / 2100	HSDPA 850 / 900 / 1900 / 2100
4G Network
LTE	LTE	LTE (unspecified)
Messaging

Build Features
-	- Fingerprint Sensor	- Fingerprint Sensor (under display, optical)

OS
Android 9.0 (Pie)	Android 9.0 (Pie)	Android 10.0
Processor
Octa-core 1.6 GHz, Exynos 7884 Octa	Octa-core (2x1.6 GHz & 6x1.35 GHz), Exynos 7884 Octa	Octa-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55), Mediatek MT6768 Helio P65 (12nm)
GPU
Mali-G71	-	Mali-G52 MC2
RAM
2 GB	3 GB	6 GB
Internal Memory
32 GB	32 GB	128 GB
External Memory
microSD, up to 512 GB (dedicated slot)	microSD, up to 512 GB (dedicated slot)	microSDXC

Type
IPS LCD Capacitive Touchscreen	Super AMOLED Capacitive Touchscreen	Super AMOLED Capacitive Touchscreen
Colors
16M colors	16M colors	16M colors
Size
6.2 inches	6.4 inches	6.4 inches
Resolution
720 x 1520 pixels (271 ppi)	720 x 1560 pixels (268 ppi)	1080 x 2400 pixels (411 ppi)
Screen-to-Body Ratio
-	-	85.01%
Multi-Touch

Rear Camera
13 MP	13 MP + 5 MP	48 MP + 8 MP + 5 MP + 5 MP
Flash
LED Flash	LED Flash	LED flash
Features
13 MP, f/1.9, 28mm (wide), AF Panorama, HDR	13 MP, f/1.9, 28mm (wide), AF 5 MP, f/2.2, depth sensor Panorama, HDR	48 MP, f/2.0, (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12µm 5 MP, f/2.4, (macro) 5 MP, f/2.4, (depth) panorama, HDR
Video
1080p@30fps	1080p@30fps	1080p@30fps
Front Camera
5 MP, f/2.0, LED flash,	8 MP, f/2.0	20 MP, f/2.2, 0.8µm HDR 1080p@30fps

GPRS
Yes	Yes	Yes
Edge
Yes	Yes	Yes
3G
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps	HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps	HSPA, LTE-A
Bluetooth
4.2, A2DP, LE	4.2, A2DP, LE	5.0, A2DP, LE
Wi-Fi
Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot	Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot	Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
USB
microUSB 2.0	microUSB 2.0	2.0, Type-C 1.0 reversible connector, USB On-The-Go
GPS
Yes, with A-GPS, GLONASS, BDS	Yes, with A-GPS, GLONASS, BDS	Yes, with A-GPS, GLONASS, GALILEO, BDS
Browser
	Yes	Yes

Internal
32 GB, 2 GB RAM	32 GB, 3 GB RAM	128 GB, 6 GB RAM or 64 GB, 4 GB RAM (UFS 2.1)
Expandable Storage
microSD, up to 512 GB (dedicated slot)	microSD, up to 512 GB (dedicated slot)	microSDXC
USB OTG
Not Supported	Supported	Supported

Fingerprint

Proximity Sensor

Accelerometer Sensor

Magnetic-field Sensor (Compass)

Gyroscope Sensor

NFC

Type
Non-removable Li-Ion Battery	Non-removable Li-Po Battery	Non-removable Li-Po Battery Fast battery charging 15W
Capacity
3400 mAh	4000 mAh	5000 mAh
Stand by
-	-	-
Talk Time
-	-	-