Samsung is releasing smartphones continuously, and for each new model, there’s another variant which brings an extra feature. Just like in the case of the Galaxy S4 which was followed by the Galaxy S4 Duos. So, if you’re using two SIM cards, then you’ll want to consider buying the Duos model. Otherwise, you can opt for the simple S4, because it has the same processor, GPU, cameras and battery.
Displays and Sizes
Both of these smartphones have 5inches Super AMOLED screens that support a resolution of 1080x1920pixels. Their dimensions are identical: 136.6mmx69.8mmx7.9mm, only that Galaxy S4 Duos weights 132grams, and the Galaxy S4 is 2 grams lighter.
Hardware and OS
Both of the models are powered by the same quadcore 1.6GHz cortex A15 & quadcore 1.2GHz cortex A7 processor + Exynos 5 Octa 5410 chipset.What are things they have in common: the 16, 32 and 64GB of internal memories, the 2GB of RAM and the fact that they both run on the Android Jelly Bean OS.
Cameras
Needless to say that they sport the same 13MP primary camera (LED flash, autofocus, Simultaneous HD video and image recording, dual shot, touch focus, geo-tagging, face and smile detection, HDR and image stabilization) and the same 2MP secondary camera.
Batteries
Although they both have the same Li-Ion 2600mAh battery, the difference between these phones is that the Galaxy S4 Duos is a dual SIM device, while its sibling supports only Micro SIM.
Prices
The Samsung Galaxy S4 Duos 16GB variant costs 690 dollars on various websites, while its sibling costs 425 dollars on amazon.com
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