Phone Comparison - Samsung Galaxy A51 vs Samsung Galaxy S20 Ultra 5G vs Samsung Galaxy A31

Price Comparison (India) -

general General Info

Manufacturer Samsung Samsung Samsung
Announced December 2019 2020, February 11 2020, March 24
Status Coming Soon - December 12, 2019 Coming soon. Exp. release 2020, March 6 Coming Soon - April 2020
Price Rs. 23,999 ($0.00) [Similarly Priced] Rs. 92,999 ($0.00) [Similarly Priced] -
Colors Prism Crush White, Black, Pink, Blue Cosmic Grey Prism Crush Black, Prism Crush Blue, Prism Crush Red, Prism Crush White
Form Factor Candybar Candybar Candybar
Dimension 158.4 x 73.7 x 7.9 mm
(6.24 x 2.9 x 0.31 in)
166.9 x 76 x 8.8 mm
(6.57 x 2.99 x 0.35 in)
159.3 x 73.1 x 8.6 mm
(6.27 x 2.88 x 0.34 in)
Weight 172 g (6.07 oz) 222 g (7.83 oz) 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 model only) GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (Dual SIM model only)
CDMA2000 1xEV-DO
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
3G Network HSDPA 850 / 900 / 1900 / 2100
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
HSDPA 850 / 900 / 1900 / 2100
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
HSDPA 850 / 900 / 1900 / 2100
4G Network LTE (unspecified) LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 14(700), 18(800), 19(800), 20(800), 25(1900), 26(850), 28(700), 29(700), 30(2300), 38(2600), 39(1900), 40(2300), 41(2500), 46(5200), 48, 66(1700/2100), 71(600) - SM-G988U LTE (unspecified)
5G Network - SA/NSA/Sub6/mmWave
5G band 2(1900), 5(850), 41(2500), 66(1700), 71(600), 260(39 GHz), 261(28 GHz), - SM-G988U
-
Messaging
Build Features - Fingerprint Sensor(In-display)
- Fingerprint Sensor(In-display)
Samsung Pay (Visa, MasterCard certified)
IP68 dust/water resistant (up to 1.5m for 30 mins)
- Fingerprint Sensor (under display, optical)

hardware Hardware and OS

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 (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53), Exynos 9611 (10nm) Octa-core (2x2.73 GHz Mongoose M5 & 2x2.60 GHz Cortex-A76 & 4x2.0 GHz Cortex-A55) - Global
Octa-core (1x2.84 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.8 GHz Kryo 585) - USA, Exynos 990 (7 nm+) - Global
Qualcomm SM8250 Snapdragon 865 (7 nm+) - USA
Octa-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55), Mediatek MT6768 Helio P65 (12nm)
GPU Mali-G72 MP3 Mali-G77 MP11 - Global
Adreno 650 - USA
Mali-G52 MC2
RAM 8 GB 16 GB 6 GB
Internal Memory 128 GB 512 GB 128 GB
External Memory microSD, up to 512 GB (dedicated slot) microSD, up to 1 TB microSDXC

display Display

Type Full HD+ Infinity-O Super AMOLED Capacitive Touchscreen Dynamic AMOLED Capacitive Touchscreen
Corning Gorilla Glass 6
HDR10+
Always-on display
120Hz@FHD, 60Hz@QHD
Super AMOLED Capacitive Touchscreen
Colors 16M colors 16M colors 16M colors
Size 6.5 inches 6.9 inches 6.4 inches
Resolution 1080 x 2340 pixels (396 ppi) 1440 x 3200 pixels (509 ppi) 1080 x 2400 pixels (411 ppi)
Screen-to-Body Ratio 89.06% 90.46% 85.01%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes no yes
Radio FM radio FM radio (USA & Canada only) -
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes

camera Camera

Rear Camera 48 MP + 12 MP + 5 MP + 5 MP 108 MP + 48 MP + 12 MP + TOF 48 MP + 8 MP + 5 MP + 5 MP
Flash LED Flash LED flash LED flash
Features 48 MP, f/1.8, (wide), 1/2", 0.8µm, PDAF
12 MP, f/2.2, 13mm (ultrawide)
5 MP, f/2.2, depth sensor
5 MP, f/2.4, macro camera
Panorama, HDR
108 MP, (wide), Dual Pixel PDAF, OIS
48 MP, (telephoto), 1/2", 0.8µm, PDAF, OIS, 10x optical zoom, upto 100x Digital zoom
12 MP, (ultrawide), 1/1.26", 0.7µm, AF, Super Steady video
TOF 3D camera
auto-HDR, panorama
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 2160p@30fps, 1080p@30fps 4320p@24fps, 2160p@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, dual-video rec., stereo sound rec., gyro-EIS & OIS 1080p@30fps
Front Camera 32 MP, f/2.0, 25mm (wide)
HDR
1080p@30fps [Similar]
40 MP, f/2.2, 26mm (wide), 0.7µm, PDAF
Dual video call, Auto-HDR
2160p@30/60fps, 1080p@30fps [Similar]
20 MP, f/2.2, 0.8µm
HDR
1080p@30fps [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSPA, LTE-A HSPA 42.2/5.76 Mbps, LTE-A (7CA) Cat20 2000/150 Mbps; 5G (2+ Gbps DL) HSPA, LTE-A
Bluetooth 5.0, A2DP, LE 5.0, A2DP, LE, aptX 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/ax, 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, USB On-The-Go 3.1, 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, BDS, GALILEO Yes, with A-GPS, GLONASS, GALILEO, BDS
Browser Yes Yes Yes

memory User Memory

Internal 128 GB, 8 GB RAM or 128 GB, 6 GB RAM or 64 GB, 4 GB RAM 512 GB, 16 GB RAM or 256 GB, 12 GB RAM or 128 GB, 12 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 1 TB microSDXC
USB OTG Supported Supported Supported

Apps Sensors

Fingerprint fingerprint supported fingerprint supported fingerprint supported
Proximity Sensor proximity sensor present proximity sensor present proximity sensor present
Accelerometer Sensor accelerometer sensor present accelerometer sensor present accelerometer sensor present
Magnetic-Field Sensor (Compass) magnetic field sensor present magnetic field sensor present magnetic field sensor present
Gyroscope Sensor gyroscope sensor present gyroscope sensor present gyroscope sensor present
Barometer Sensor barometer sensor not present barometer sensor present barometer sensor not present
NFC NFC not supported NFC supported NFC not supported

battery Battery

Type Non-removable Li-Po Battery
Fast battery charging 15W
Non-removable Li-Po Battery
Fast battery charging 45W: 100% in 58 min
USB Power Delivery 3.0
Fast Qi/PMA wireless charging 15W
Power bank/Reverse wireless charging 9W
Non-removable Li-Po Battery
Fast battery charging 15W
Capacity 4000 mAh 5000 mAh 5000 mAh
Stand by - - -
Talk Time - - -