Phone Comparison - Samsung Galaxy Ace Duos vs Panasonic P51 vs Samsung Galaxy S Duos 2 S7582

general General Info

Manufacturer Samsung Panasonic Samsung
Announced May 2012 May 2013 November 2013
Status Available - June 2012 Available - May 2013 Available - November 2013
Colors Black Black, White White, Black
Form Factor Candybar Candybar Candybar
Dimension 112.7 x 61.5 x 11.5 mm
(4.44 x 2.42 x 0.45 in)
144 x 75 x 8.5 mm
(5.67 x 2.95 x 0.33 in)
121.5 x 63.1 x 10.57 mm
(4.78 x 2.48 x 0.42 in)
Weight 122 g (4.3 oz) 135 g (4.76 oz) 118 g (4.16 oz)
2G Network GSM 850 / 900 / 1800 / 1900
GSM 850 / 900 / 1800 / 1900
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network HSDPA 900 / 2100 HSDPA 900 / 2100 HSDPA 900 / 2100
Messaging SMS, MMS SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail

hardware Hardware and OS

OS Android OS, v2.3 (Gingerbread) Android OS, v4.2 (Jelly Bean) Android OS, v4.2 (Jelly Bean)
Processor 832 MHz Quad-core 1.2 GHz Cortex-A7, MTK MT6589 Dual-core 1.2 GHz Cortex-A9, Broadcom BCM21664
GPU PowerVR SGX544 Broadcom VideoCore IV
RAM N/A 1 GB 768 MB
Internal Memory 3 GB storage, 512 MB 4 GB storage 4 GB (1.9 GB user available)
External Memory microSD, up to 32 GB microSD, up to 32 GB microSD, up to 32 GB

display Display

Type TFT capacitive touchscreen IPS LCD capacitive touchscreen TFT Capacitive Touchscreen, PLS
Colors 16M colors 16M colors 16M colors
Size 3.5 inches 5.0 inches 4.0 inches
Resolution 320 x 480 pixels (165 ppi) 720 x 1280 pixels (294 ppi) 480 x 800 pixels (233 ppi)
Screen-to-Body Ratio 52.52% 63.69% 59.52%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 5 MP, 2592x1944 pixels 8 MP, 3264 x 2448 pixels 5 MP, 2592х1944 pixels
Flash No LED flash LED flash
Features Auto focus, Geo-tagging Auto focus, Geo-tagging, Touch Focus, Face Detection Auto focus, Geo-tagging
Video Yes Yes, 1080p Yes, 720p@30fps
Front Camera No [Similar] Yes, 1.3 MP, 720p [Similar] Yes, VGA [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSDPA, 7.2 Mbps HSDPA, 21 Mbps; HSUPA, 11 Mbps HSDPA, 21 Mbps; HSUPA, 5.76 Mbps
Bluetooth Yes, v3.0 with A2DP Yes, v4.0 with A2DP, EDR Yes, v4.0 with 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 hotspot, Wi-Fi Direct
USB Yes, microUSB v2.0 Yes, microUSB v2.0, USB On-the-go Yes, microUSB v2.0
GPS Yes, with A-GPS support Yes, with A-GPS support Yes, with A-GPS support and GLONASS
Browser HTML HTML5 HTML5

memory User Memory

Internal 3GB storage, 512 MB 4 GB storage, 1 GB RAM 4 GB (1.9 GB user available), 768 MB RAM
Expandable Storage microSD, up to 32 GB microSD, up to 32 GB microSD, up to 32 GB
USB OTG - Supported -

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 Standard battery, Li-Ion Li-Ion Battery Standard battery, Li-Ion
Capacity 1300 mAh 2500 mAh 1500 mAh
Stand by Up to 520 h (2G)
Up to 410 h (3G)
- Up to 280 h (3G)
Talk Time Up to 6 h 30 min (2G)
Up to 16 h 40 min (3G)
- Up to 8 h (3G)