Phone Comparison - Samsung Galaxy A51 vs Samsung Galaxy M21 vs Oppo A17

Price Comparison (India) -

general General Info

Manufacturer Samsung Samsung Oppo
Announced December 2019 2020, March 18 September 2022
Status Coming Soon - December 12, 2019 Coming soon. Exp. release 2020, March 23 Available - September 2022
Price Rs. 23,999 ($0.00) [Similarly Priced] Rs. 12,999 ($0.00) [Similarly Priced] Rs. 12,499 ($0.00) [Similarly Priced]
Colors Prism Crush White, Black, Pink, Blue Midnight Blue, Raven Black Midnight Black, Lake Blue
Form Factor Candybar Candybar Candybar
Dimension 158.4 x 73.7 x 7.9 mm
(6.24 x 2.9 x 0.31 in)
159 x 75.1 x 8.9 mm
(6.26 x 2.96 x 0.35 in)
164.2 x 75.6 x 8.3 mm
(6.46 x 2.98 x 0.33 in)
Weight 172 g (6.07 oz) 188 g (6.63 oz) 189 g (6.67 oz)
SIM Type Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by) Dual SIM (Nano-SIM, dual stand-by) 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 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network HSDPA 850 / 900 / 1900 / 2100
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 2100
4G Network LTE (unspecified) LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300), 41(2500) 1, 3, 5, 8, 38, 40, 41
Messaging
Build Features - Fingerprint Sensor(In-display)
- Fingerprint Sensor
- Fingerprint Sensor (side-mounted)
)

hardware Hardware and OS

OS Android 9.0 (Pie) Android 10.0 Android 12
User Interface One UI One UI 2.0 ColorOS 12.1
Processor Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53), Exynos 9611 (10nm) Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53), Exynos 9611 (10nm) Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53), MediaTek MT6765 Helio G35 (12 nm)
GPU Mali-G72 MP3 Mali-G72 MP3 PowerVR GE8320
RAM 8 GB 6 GB 4 GB
Internal Memory 128 GB 128 GB 64 GB
External Memory microSD, up to 512 GB (dedicated slot) microSDXC (dedicated slot) microSDXC

display Display

Type Full HD+ Infinity-O Super AMOLED Capacitive Touchscreen Super AMOLED Capacitive Touchscreen
Corning Gorilla Glass 3
420 nits max brightness (advertised)
IPS LCD Screen
Colors 16M colors 16M colors 16M Colors
Size 6.5 inches 6.4 inches 6.56 inches
Resolution 1080 x 2340 pixels (396 ppi) 1080 x 2340 pixels (403 ppi) 720 x 1612 pixels (269 ppi)
Screen-to-Body Ratio 89.06% 84.07% 83.36%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio FM radio FM radio, RDS, recording FM radio
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 48 MP + 12 MP + 5 MP + 5 MP 48 MP + 8 MP + 5 MP 50 MP + 2 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
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/2.2, (depth)
Panorama, HDR
50 MP, f/1.8, (wide), PDAF
2 MP, f/2.4, (depth)
HDR, Panorama
Video 2160p@30fps, 1080p@30fps 2160p@30fps, 1080p@30fps, gyro-EIS 1080p@30fps
Front Camera 32 MP, f/2.0, 25mm (wide)
HDR
1080p@30fps [Similar]
20 MP, f/2.0, (wide), 1/2.8", 1.0μm
HDR
1080p@30fps [Similar]
5 MP, f/2.2, (wide)
HDR
Yes [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSPA, LTE-A HSPA, LTE-A HSPA 42.2/5.76 Mbps, LTE
Bluetooth 5.0, A2DP, LE 5.0, A2DP, LE Yes
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 Wi-Fi 802.11 a/b/g/n/ac, dual-band, hotspot
USB 2.0, Type-C 1.0 reversible connector, USB On-The-Go 2.0, Type-C 1.0 reversible connector microUSB 2.0
GPS Yes, with A-GPS, GLONASS, GALILEO, BDS Yes, with A-GPS, GLONASS, BDS Yes, with A-GPS
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 128 GB, 6 GB RAM or 64 GB, 4 GB RAM (UFS 2.1) 64 GB, 4 GB RAM eMMC 5.1
Expandable Storage microSD, up to 512 GB (dedicated slot) microSDXC (dedicated slot) microSDXC
USB OTG Supported Supported Not 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 not present
Gyroscope Sensor gyroscope sensor present gyroscope sensor present gyroscope sensor not present
NFC NFC not supported NFC not supported NFC not supported

battery Battery

Type Non-removable Li-Po Battery
Fast battery charging 15W
Non-removable Li-Po Battery
Fast battery charging 15W
Non-removable Li-Po Battery
Capacity 4000 mAh 6000 mAh 5000 mAh
Stand by - - -
Talk Time - - -