Phone Comparison - Samsung Galaxy Core 2 Duos vs OPPO Joy vs OPPO Neo R831K

general General Info

Manufacturer Samsung Oppo Oppo
Announced June 2014 April 2014 August 2014
Status Available - July 2014 Available - April 2014 Available - August 2014
Colors White, Black White, Black White, Black
Form Factor Candybar Candybar Candybar
Dimension 130.3 x 68 x 9.8 mm
(5.13 x 2.68 x 0.39 in)
124 x 63 x 9.9 mm
(4.88 x 2.48 x 0.39 in)
132 x 65.8 x 9.2 mm
(5.2 x 2.59 x 0.36 in)
Weight 138 g (4.87 oz) 125 g (4.41 oz) 130 g (4.59 oz)
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 900 / 2100 HSDPA 2100 HSDPA 2100
Messaging SMS, MMS, EMail, IM SMS, MMS, EMail, IM SMS, MMS, Push Mail, EMail

hardware Hardware and OS

OS Android OS, v4.4.2 (KitKat) Android OS, v4.2.2 (Jelly Bean) Android OS, v4.2.2 (Jelly Bean) based Color OS
Processor Quad-core 1.2 GHz Dual-core 1.3 GHz Dual-core 1.3 GHz
GPU - - -
RAM 768 MB 512 MB 1 GB
Internal Memory 4 GB 4 GB ROM 4 GB
External Memory microSD, up to 64 GB microSD, up to 32 GB microSD, up to 32 GB

display Display

Type TFT capacitive touchscreen TFT Capacitive Touchscreen IPS LCD capacitive touchscreen
Colors 16M colors 16M colors 16M colors
Size 4.5 inches 4.0 inches 4.5 inches
Resolution 480 x 800 pixels (207 ppi) 480 x 800 pixels (233 ppi) 480 x 854 pixels (218 ppi)
Screen-to-Body Ratio 65.25% 58.42% 64.07%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio FM 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 3 MP, 2048 x 1536 pixels 5 MP, 2592 x 1944 pixels
Flash LED flash LED flash LED Flash
Features Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection Geo-tagging, Face Detection, Panorama Auto focus, Geo-tagging, Touch Focus, Face Detection, HDR
Video Yes Yes, 720p Yes
Front Camera Yes, VGA [Similar] Yes, VGA [Similar] Yes, 2 MP [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSDPA, 21 Mbps; HSUPA, 5.76 Mbps HSDPA, 21 Mbps; HSUPA, 5.76 Mbps HSPA+
Bluetooth Yes, v4.0 with A2DP Yes, v2.0 A2DP, EDR v2.1, A2DP
Wi-Fi Wi-Fi 802.11 b/g/n, Wi-Fi hotspot Wi-Fi 802.11 b/g/n, Wi-Fi hotspot Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot
USB Yes, microUSB v2.0 Yes, microUSB v2.0 microUSB v2.0
GPS Yes, with A-GPS support and GLONASS Yes, with A-GPS support Yes, with A-GPS
Browser HTML HTML HTML

memory User Memory

Internal 4 GB, 768 MB RAM 4 GB ROM, 512 MB RAM 4 GB, 1 GB RAM
Expandable Storage microSD, up to 64 GB microSD, up to 32 GB microSD, up to 32 GB

Apps Sensors

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

battery Battery

Type Li-Ion Battery Li-Ion Battery Li-Ion Battery
Capacity 2000 mAh 1700 mAh 1900 mAh
Stand by - - -
Talk Time - - -