Phone Comparison - Samsung Galaxy Core 2 Duos vs Samsung Galaxy M51 vs Samsung Galaxy A31

general General Info

Manufacturer Samsung Samsung Samsung
Announced June 2014 2020, August 31 2020, March 24
Status Available - July 2014 Coming soon. Exp. release 2020, September 11 Coming Soon - April 2020
Colors White, Black Blue; other colors Prism Crush Black, Prism Crush Blue, Prism Crush Red, Prism Crush White
Form Factor Candybar Candybar Candybar
Dimension 130.3 x 68 x 9.8 mm
(5.13 x 2.68 x 0.39 in)
162.6 x 77.5 x 8.5 mm
(6.4 x 3.05 x 0.33 in)
159.3 x 73.1 x 8.6 mm
(6.27 x 2.88 x 0.34 in)
Weight 138 g (4.87 oz) - 185 g (6.53 oz)
SIM Type - 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 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
3G Network HSDPA 900 / 2100 HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G Network - LTE LTE (unspecified)
Messaging SMS, MMS, EMail, IM
Build Features - - Fingerprint Sensor (side-mounted)
- Fingerprint Sensor (under display, optical)

hardware Hardware and OS

OS Android OS, v4.4.2 (KitKat) Android 10.0 Android 10.0
User Interface - One UI 2.0 One UI 2.0
Processor Quad-core 1.2 GHz Octa-core (2x2.2 GHz Kryo 470 Gold & 6x1.8 GHz Kryo 470 Silver), Qualcomm SDM730 Snapdragon 730 (8 nm) Octa-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55), Mediatek MT6768 Helio P65 (12nm)
GPU - Adreno 618 Mali-G52 MC2
RAM 768 MB 6 GB 6 GB
Internal Memory 4 GB 128 GB 128 GB
External Memory microSD, up to 64 GB microSDXC microSDXC

display Display

Type TFT capacitive touchscreen FHD+ IPS LCD Capacitive Touchscreen
Corning Gorilla Glass 3
Super AMOLED Capacitive Touchscreen
Colors 16M colors 16M colors 16M colors
Size 4.5 inches 6.5 inches 6.4 inches
Resolution 480 x 800 pixels (207 ppi) 1080 x 2340 pixels (396 ppi) 1080 x 2400 pixels (411 ppi)
Screen-to-Body Ratio 65.25% 82.51% 85.01%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes no yes
Radio FM Radio FM radio -
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 5 MP, 2592 х 1944 pixels 64 MP + 12 MP + 5 MP + 5 MP 48 MP + 8 MP + 5 MP + 5 MP
Flash LED flash LED Flash LED flash
Features Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection 64 MP, f/2.0, 26mm (wide), 1/1.72", 0.8µm, PDAF
12 MP, f/2.2, (ultrawide)
5 MP, f/2.4, (macro)
5 MP, f/2.2, (depth)
Panorama, HDR
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 Yes 4K@30fps, 1080p@30fps 1080p@30fps
Front Camera Yes, VGA [Similar] 32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm
HDR
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 HSDPA, 21 Mbps; HSUPA, 5.76 Mbps HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 400/50 Mbps HSPA, LTE-A
Bluetooth Yes, v4.0 with A2DP 5.0, A2DP, LE 5.0, A2DP, LE
Wi-Fi Wi-Fi 802.11 b/g/n, Wi-Fi 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, microUSB v2.0 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 support and GLONASS Yes, with A-GPS, GLONASS, GALILEO, BDS Yes, with A-GPS, GLONASS, GALILEO, BDS
Browser HTML Yes Yes

memory User Memory

Internal 4 GB, 768 MB RAM 128 GB, 6 GB RAM 128 GB, 6 GB RAM or 64 GB, 4 GB RAM (UFS 2.1)
Expandable Storage microSD, up to 64 GB microSDXC microSDXC
USB OTG - Supported Supported

Apps Sensors

Fingerprint fingerprint not 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
NFC NFC not supported NFC supported NFC not supported

battery Battery

Type Li-Ion Battery Non-removable Li-Po Battery
Fast battery charging 25W
Non-removable Li-Po Battery
Fast battery charging 15W
Capacity 2000 mAh 7000 mAh 5000 mAh
Stand by - - -
Talk Time - - -