Samsung Galaxy A10s vs Samsung Galaxy A31 vs Samsung Galaxy A21s

General Info

Manufacturer
Samsung	Samsung	Samsung
Announced
August 2019	2020, March 24	Expected Announcement - May 2020
Status
Available - August 2019	Coming Soon - April 2020	Rumored
Price
Rs. 9,499 ($0.00) [Similarly Priced]	-	-
Colors
Blue, Green, Red, Black	Prism Crush Black, Prism Crush Blue, Prism Crush Red, Prism Crush White	Black, White, Blue
Form Factor
Candybar	Candybar	Candybar
Dimension
156.9 x 75.8 x 7.8 mm (6.18 x 2.98 x 0.31 in)	159.3 x 73.1 x 8.6 mm (6.27 x 2.88 x 0.34 in)	8.9 mm thickness (0.35 in thickness)
Weight
168 g (5.93 oz)	185 g (6.53 oz)	191 g (6.74 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 model 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 band 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300), 41(2500)	LTE (unspecified)	LTE
Messaging

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

OS
Android 9.0 (Pie)	Android 10.0	Android 10.0
User Interface
One UI	One UI 2.0	One UI 2.0
Processor
Octa-core (4x2.0 GHz & 4x1.5 GHz), Exynos processor	Octa-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55), Mediatek MT6768 Helio P65 (12nm)	Octa-core 2.0 GHz, Exynos 850
GPU
-	Mali-G52 MC2	-
RAM
2 GB	6 GB	3 GB
Internal Memory
32 GB	128 GB	64 GB
External Memory
microSD, up to 1 TB (dedicated slot)	microSDXC	microSDXC

Type
IPS LCD Capacitive Touchscreen	Super AMOLED Capacitive Touchscreen	PLS TFT Capacitive Touchscreen
Colors
16M colors	16M colors	16M colors
Size
6.2 inches	6.4 inches	6.55 inches
Resolution
720 x 1520 pixels (271 ppi)	1080 x 2400 pixels (411 ppi)	720 x 1600 pixels (268 ppi)
Screen-to-Body Ratio
80.84%	85.01%	-
Multi-Touch

Rear Camera
13 MP + 2 MP	48 MP + 8 MP + 5 MP + 5 MP	48 MP + 8 MP + 2 MP
Flash
LED Flash	LED flash	LED Flash
Features
13 MP, f/1.8, 28mm (wide), AF 2 MP, f/2.4, 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	48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.4, (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, (macro) Panorama, HDR
Video
1080p@30fps	1080p@30fps	1080p@30fps
Front Camera
8 MP, f/2.0	20 MP, f/2.2, 0.8µm HDR 1080p@30fps	13 MP, f/2.3, 29mm (normal), 1/3.1", 1.12µm HDR, Panorama 1080p@30fps

GPRS
	Yes	Yes
Edge
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM only)	Yes	Yes
3G
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps	HSPA, LTE-A	HSPA 42.2/5.76 Mbps, LTE-A
Bluetooth
5.0, A2DP, LE	5.0, A2DP, LE	5.0, A2DP, LE
Wi-Fi
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	Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
USB
microUSB 2.0	2.0, Type-C 1.0 reversible connector, USB On-The-Go	Yes
GPS
Yes, with A-GPS, GLONASS	Yes, with A-GPS, GLONASS, GALILEO, BDS	Yes, with A-GPS
Browser
Yes	Yes	Yes

Internal
32 GB, 2 GB RAM	128 GB, 6 GB RAM or 64 GB, 4 GB RAM (UFS 2.1)	64 GB, 3 GB RAM or 32 GB, 3 GB RAM
Expandable Storage
microSD, up to 1 TB (dedicated slot)	microSDXC	microSDXC
USB OTG
Supported	Supported	Supported

Fingerprint

Proximity Sensor

Accelerometer Sensor

Magnetic-field Sensor (Compass)

Gyroscope Sensor

NFC

Type
Non-removable Li-Po Battery	Non-removable Li-Po Battery Fast battery charging 15W	Non-removable Li-Po Battery Battery Charging 10W
Capacity
4000 mAh	5000 mAh	5000 mAh
Stand by
-	-	-
Talk Time
-	-	-