Design
The Galaxy S Duos 2 doesn't look odd. In fact it carries the same design of its predecessor and has the same design structure of other devices in the Galaxy series. Still, it doesn't offer a premium look of its high-end devices. Alright, the Duos S 2 is placed in the mid-size smartphone class and priced very reasonably. So you can't blame Samsung here. But, the 'Duos' labeling at the front side of the gadget is really irritating. Samsung should cut off this badging from all its Dual SIM gadgets. Should such branding is necessary to identify whether the gadget is powered by Dual SIM or not? I don't think so.

Display
There is no difference in the display specifications. It comes with the same 4 inches, TFT capacitive touchscreen, with 480 x 800 pixels of resolution and 223 ppi. It's pretty fine for such class gadget. You can surf on it even under sunlight.
Processor and Performance
This time Samsung has taken things to the next level. Powering with a Dual-core 1.2 GHz processor, the S Duos successor does perform better. Further, it has been backed up by 768 MB RAM, which seems lesser. The South Korean firm should have ensured at least 1 GB RAM, which would have made the gadget to be a stunner.
Operating System
It runs on Android OS, v4.2 (Jelly Bean), where the predecessor still makes things with the outdated Ice Cream Sandwich. It is not likely to get updated to KitKat soon since the S Duos 2 is only a mid-sized smartphone.

Storage
There is enough space for you to store your data. The S Duos 2 has 4 GB inbuilt storage out of which 1.8 GB is usable, while the left is preloaded with Apps and all. You can expand memory via a microSD card up to 64 GB by inputting the memory card in the given memory card slot.
Camera
No changes are found here. It comes with the same 5 MP rear cam with an LED flash and a VGA cam at front for video calling purpose. The camera has already been proven. So you need not to worry about the quality of the pics and videos.
Battery Backup
Same is the Li-Ion 1500 mAh battery as well. But, the battery backup has been improved. Now, it gives a standby of 570 hours compared to the 445 hours of its predecessor. But, talktime has disappointingly gone down in 2G. Now, it offers only 12 hours compared to 13 hours of the Galaxy S Duos.

Price
Samsung has approached the smartphone with a very competitive pricing. Spending Rs.11k for this gadget seems worth for money. Above all, it's from Samsung, the biggest dealer in both smartphone and mobile phone markets.
Verdict
If you're looking for a Dual SIM smartphone with good performance, specifications and at very affordable pricing, the Galaxy S Duos 2 might be your gadget.
Pros
Better processor
Reasonably priced
Cons
Doesn't look cool.
Samsung S Duos 2 - S7582
I Purchased it from other Online Website .
Feature Specifications:-
1)Real RAM working in Task Manager :- 717 MB
2)ROM:- 4 GB
Out of which System Storage :-1.82 Gb (We Can't Use it) , 2.18 Gb Remaining Storage is User Available .
3)Dual Core Processor
4)Boot time :- 25 Sec only
5)Good Battery Backup
6)Good Graphics
6)Run Temple run 2 & Subway surf without lag
7)Support HD Videos.
8)Good Camera
9)Looks like High end S4 phone
10)Android Version :- 4.2.2. Jelly Bean
11) Overall Very fast & Excellent Phone
My Rating to this phone in 10 K Budget :- 10/10
Very Important Feature :- Very High Earpiece Volume / Call Volume
In addition to High call volume , Samsung give a option "Adapt Sound" in Settings
which can further increase call volume according to your hearing capability
Detailed Technical Specifications
Internal Storage
SD CARD - Up gradable upto 64 gb
Internal Storage : 2.18 GB --->268 mb used ; 1.9 gb free
Available Storage : 1.89 GB
RAM
Total RAM : 716 MB ; Available Ram : 205 Mb ( 27 %) ; 502 Mb used
CPU Architecture ; ARM Cortex A9 1.20 GHZ
GPU : Broadcom VideoCore IV HW
Clock Speed ; 312 Mhz -1.20 Mhz ; Core 0 :- 800 MHZ ; Core 1 1200 MHZ
Resoultion : 480 x800
Saurabh Mathur
nice, compact and informative..the review I mean!