Phone Comparison - Samsung Galaxy M31 vs Realme C21 vs Realme 8

Price Comparison (India)

general General Info

Manufacturer Samsung realme Realme
Announced 2020, February 25 2021, March 05 March 2021
Status Available. Released 2020, March 5 Available. Released 2021, March 05 Coming Soon - March 2021
Price Rs. 14,999 ($0.00) [Similarly Priced] Rs. 8,999 ($0.00) [Similarly Priced] Rs. 14,999 ($0.00) [Similarly Priced]
Colors Ocean Blue, Space Black, Red Cross Black, Cross Blue Cyber Silver, Cyber Black
Form Factor Candybar Candybar Candybar
Dimension 159.2 x 75.1 x 8.9 mm
(6.27 x 2.96 x 0.35 in)
165.2 x 76.4 x 8.9 mm
(6.5 x 3.01 x 0.35 in)
160.6 x 73.9 x 8 mm
(6.32 x 2.91 x 0.31 in)
Weight 191 g (6.74 oz) 190 g (6.7 oz) 177 g (6.24 oz)
SIM Type 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 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 / 2100 HSDPA 850 / 900 / 2100
4G Network LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300), 41(2500) 1, 3, 5, 7, 8, 20, 28, 38, 40, 41 1, 3, 5, 8, 38, 40, 41
Messaging
Build Features - Fingerprint Sensor
- Fingerprint Sensor (rear-mounted)
- Fingerprint Sensor (under display, optical)

hardware Hardware and OS

OS Android 10.0 Android 10 Android 11
User Interface One UI 2.0 Realme UI 1.0 realme UI 2.0
Processor 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 Helio G35 (12 nm) Octa-core (2x2.05 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55), Mediatek Helio G95 (12 nm)
GPU Mali-G72 MP3 PowerVR GE8320 Mali-G76 MC4
RAM 6 GB 4 GB 8 GB
Internal Memory 128 GB 64 GB 128 GB
External Memory microSD, up to 512 GB microSDXC (dedicated slot) microSDXC (dedicated slot)

display Display

Type Full HD+ Infinity-U Super AMOLED Capacitive Touchscreen HD+ IPS LCD Screen Super AMOLED Screen
1000 nits (peak)
Always-on display
Colors 16M colors 16M Colour 16M Colour
Size 6.4 inches 6.5 inches 6.4 inches
Resolution 1080 x 2340 pixels (403 ppi) 720 x 1600 pixels (270 ppi) 1080 x 2400 pixels (411 ppi)
Screen-to-Body Ratio 83.97% 80.78% 83.41%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 64 MP + 8 MP + 5 MP + 5 MP 13 MP + 2 MP + 2 MP 64 MP + 8 MP + 2 MP + 2 MP
Flash LED Flash LED Flash LED Flash
Features 64 MP, f/1.8, 26mm (wide), 1/1.72", 0.8µm, PDAF
8 MP, f/2.2, 12mm (ultrawide), 1/4.0", 1.12µm
5 MP, f/2.2, 25mm (macro), 1/5.0", 1.12µm
5 MP, f/2.2, (depth)
HDR, Panorama
13 MP, f/2.2, 26mm (wide), 1/3.06", 1.12µm, PDAF
2 MP, f/2.4, (macro)
2 MP, f/2.4, (depth)
HDR, panorama
64 MP, f/1.8, 26mm (wide), 1/1.73", 0.8µm, PDAF
8 MP, f/2.3, 119˚, 16mm (ultrawide), 1/4.0", 1.12µm
2 MP, f/2.4, (macro)
2 MP, f/2.4, (depth)
HDR, panorama
Video 2160p@30fps, 1080p@30fps, gyro-EIS 1080p@30fps 4K@30fps, 1080p@30/60/120fps, gyro-EIS
Front Camera 32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm
HDR
1080p@30fps [Similar]
5 MP, f/2.2, (wide), 1/5.0", 1.12µm
HDR
1080p@30fps [Similar]
16 MP, f/2.5, (wide), 1/3.0" 1.0µm
HDR, panorama
1080p@30/120fps, gyro-EIS [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 HSPA 42.2/5.76 Mbps, LTE-A
Bluetooth 5.0, A2DP, LE 5.1, A2DP, LE 5.1, 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 Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
USB 2.0, Type-C 1.0 reversible connector microUSB 2.0, USB On-The-Go USB Type-C 2.0, USB On-The-Go
GPS Yes, with A-GPS, GLONASS Yes, with A-GPS, GLONASS, BDS Yes, with A-GPS, GLONASS, BDS
Browser Yes Yes

memory User Memory

Internal 128 GB, 6 GB RAM or 64 GB, 4 GB RAM 64 GB, 4 GB RAM or 32 GB, 3 GB RAM eMMC 5.1 128 GB, 8 GB RAM or 128 GB, 6 GB RAM or 128 GB, 4 GB RAM UFS 2.1
Expandable Storage microSD, up to 512 GB microSDXC (dedicated slot) microSDXC (dedicated slot)
USB OTG Yes 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 not present gyroscope sensor 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
Battery Charging 10W
Non-removable Li-Po Battery
Fast battery charging 30W, 50% in 26 min, 100% in 65 min (advertised) VOOC 4.0
Capacity 6000 mAh 5000 mAh 5000 mAh
Stand by - - -
Talk Time - - -