Samsung Galaxy A42 5G vs Samsung Galaxy A51 5G UW

General Info

Manufacturer
Samsung	Samsung
Announced
2020, September 02	August 2020
Status
Available. Released 2020, November 11	Available - August 2020
Colors
Prism Dot Black, Prism Dot White, Prism Dot Gray	Prism Bricks Blue
Form Factor
Candybar	Candybar
Dimension
164.4 x 75.9 x 8.6 mm (6.47 x 2.99 x 0.34 in)	158.8 x 73.4 x 8.6 mm (6.25 x 2.89 x 0.34 in)
Weight
193 g (6.81 oz)	188.8 g (6.63.0.28 oz)
SIM Type
Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by)	Pre-installed Nano-SIM
2G Network
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)	GSM 850 / 900 / 1800 / 1900
3G Network
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100	HSDPA 850 / 900 / 1900 / 2100
4G Network
1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 38, 40, 41 - Europe 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 34, 38, 39, 40, 41	2, 4, 5, 13, 66
5G Network
1, 3, 5, 7, 8, 28, 40, 41, 78 SA/NSA/Sub6 - Europe 1, 3, 5, 7, 8, 28, 40, 41, 78, 79 SA/NSA/Sub6	260, 261 mmWave
SAR EU
- W/kg (head) - W/kg (body)	0.59 W/kg (head) 1.32 W/kg (body)
Messaging

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

OS
Android 10, upgradable to Android 11, One UI 3.1	Android 10
User Interface
One UI 2.1	One UI 2.0
Processor
Octa-core (2x2.2 GHz Kryo 570 & 6x1.8 GHz Kryo 570), Qualcomm SM7225 Snapdragon 750 5G (8 nm) [Similar]	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) [Similar]
GPU
Adreno 619 [Similar]	Adreno 620 [Similar]
RAM
8 GB [Browse Similar]	6 GB [Browse Similar]
Internal Memory
128 GB	128 GB
External Memory
microSDXC	microSDXC (uses shared SIM slot)

Type
HD+ Super AMOLED capacitive touchscreen	Super AMOLED Capacitive Touchscreen Corning Gorilla Glass 3
Colors
16M Colour	16M colors
Size
6.6 inches [Similar]	6.5 inches [Similar]
Resolution
720 x 1600 pixels (266 ppi)	1080 x 2400 pixels (405 ppi)
Screen-to-Body Ratio
84.18%	87.47%
Multi-Touch

Rear Camera
48 MP + 8 MP + 5 MP + 5 MP [Similar]	48 MP + 12 MP + 5 MP + 5 MP [Similar]
Flash
LED Flash	LED flash
Features
48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 12mm (ultrawide), 1/4.0", 1.12µm 5 MP, f/2.4, (depth) 5 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
Video
4K@30fps, 1080p@30fps, 720p@480fps	4K@30fps, 1080p@30/120fps; gyro-EIS
Front Camera
20 MP, f/2.2, 0.8µm HDR 1080p@30fps [Similar]	32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm HDR 1080p@30fps [Similar]

GPRS
Yes	Yes
Edge
Yes	Yes
3G
HSPA 42.2/5.76 Mbps, LTE-A, 5G	HSPA 42.2/5.76 Mbps, LTE-A, 5G
Bluetooth
5.0, A2DP, LE	5.0, A2DP, LE
Wi-Fi
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
2.0, Type-C 1.0 reversible connector	2.0, Type-C 1.0 reversible connector, USB On-The-Go
GPS
Yes, with A-GPS, GLONASS, GALILEO, BDS	Yes, with A-GPS, GLONASS, GALILEO, BDS
Browser
Yes	Yes

Internal
128 GB, 8 GB RAM or 128 GB, 6 GB RAM or 128 GB, 4 GB RAM UFS 2.1	128 GB, 6 GB RAM
Expandable Storage
microSDXC	microSDXC (uses shared SIM slot)
USB OTG
Supported	Supported

Fingerprint

Proximity Sensor

Accelerometer Sensor

Magnetic-field Sensor (Compass)

Gyroscope Sensor

NFC

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