Samsung Galaxy A21s vs Samsung Galaxy A51 5G UW vs Samsung Galaxy A03

General Info

Manufacturer
Samsung	Samsung	Samsung
Announced
Expected Announcement - May 2020	August 2020	November 2021
Status
Rumored	Available - August 2020	Available - January 2022
Price
-	-	Rs. 10,499 ($0.00) [Similarly Priced]
Colors
Black, White, Blue	Prism Bricks Blue	Black, Blue, Red
Form Factor
Candybar	Candybar	Candybar
Dimension
8.9 mm thickness (0.35 in thickness)	158.8 x 73.4 x 8.6 mm (6.25 x 2.89 x 0.34 in)	164.2 x 75.9 x 9.1 mm (6.46 x 2.99 x 0.36 in)
Weight
191 g (6.74 oz)	188.8 g (6.63.0.28 oz)	196 g (6.91 oz)
SIM Type
Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by)	Pre-installed Nano-SIM	Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by)
2G Network
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)	GSM 850 / 900 / 1800 / 1900	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 / 2100
4G Network
LTE	2, 4, 5, 13, 66	1, 3, 5, 7, 8, 20, 28, 38, 40, 41
5G Network
-	260, 261 mmWave	-
SAR EU
- W/kg (head) - W/kg (body)	0.59 W/kg (head) 1.32 W/kg (body)	0.20 W/kg (head) 1.35 W/kg (body)
Messaging

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

OS
Android 10.0	Android 10	Android 11
User Interface
One UI 2.0	One UI 2.0	-
Processor
Octa-core 2.0 GHz, Exynos 850	Octa-core (1x2.4 GHz Kryo 475 Prime & 1x2.2 GHz Kryo 475 Gold & 6x1.8 GHz Kryo 475 Silver), Qualcomm SDM765 Snapdragon 765G (7 nm)	Octa-core (2x1.6 GHz & 6x1.6 GHz),
GPU
-	Adreno 620	-
RAM
3 GB	6 GB	4 GB
Internal Memory
64 GB	128 GB	128 GB
External Memory
microSDXC	microSDXC (uses shared SIM slot)	microSDXC (dedicated slot)

Type
PLS TFT Capacitive Touchscreen	Super AMOLED Capacitive Touchscreen Corning Gorilla Glass 3	HD+ PLS TFT
Colors
16M colors	16M colors	16M Colors
Size
6.55 inches	6.5 inches	6.5 inches
Resolution
720 x 1600 pixels (268 ppi)	1080 x 2400 pixels (405 ppi)	720 x 1600 pixels (270 ppi)
Screen-to-Body Ratio
-	87.47%	81.80%
Multi-Touch

Rear Camera
48 MP + 8 MP + 2 MP	48 MP + 12 MP + 5 MP + 5 MP	48 MP + 2 MP
Flash
LED Flash	LED flash	LED Flash
Features
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	48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF 12 MP, f/2.2, 123˚ (ultrawide) 5 MP, f/2.4, (macro) 5 MP, f/2.2, (depth) panorama, HDR	48 MP, f/1.8, (wide), AF 2 MP, f/2.4, (depth)
Video
1080p@30fps	4K@30fps, 1080p@30/120fps; gyro-EIS	1080p@30fps
Front Camera
13 MP, f/2.3, 29mm (normal), 1/3.1", 1.12µm HDR, Panorama 1080p@30fps	32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm HDR 1080p@30fps	5 MP, f/2.2

GPRS
Yes	Yes	Yes
Edge
Yes	Yes	Yes
3G
HSPA 42.2/5.76 Mbps, LTE-A	HSPA 42.2/5.76 Mbps, LTE-A, 5G	HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
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 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
USB
Yes	2.0, Type-C 1.0 reversible connector, USB On-The-Go	microUSB 2.0
GPS
Yes, with A-GPS	Yes, with A-GPS, GLONASS, GALILEO, BDS	Yes, with A-GPS
Browser
Yes	Yes	Yes

Internal
64 GB, 3 GB RAM or 32 GB, 3 GB RAM	128 GB, 6 GB RAM	128 GB, 4 GB RAM or 64 GB, 4 GB RAM or 32 GB, 4 GB RAM or 32 GB, 3 GB RAM
Expandable Storage
microSDXC	microSDXC (uses shared SIM slot)	microSDXC (dedicated slot)
USB OTG
Supported	Supported	Not Supported

Fingerprint

Proximity Sensor

Accelerometer Sensor

Magnetic-field Sensor (Compass)

Gyroscope Sensor

NFC

Type
Non-removable Li-Po Battery Battery Charging 10W	Non-removable Li-Po Battery Fast battery charging 15W	Non-removable Li-Po Battery Battery Charging 10W
Capacity
5000 mAh	4500 mAh	5000 mAh
Stand by
-	-	-
Talk Time
-	-	-