This is already my third attempt with Dual SIM Sammsung (The first was not a smartphone was good, the second smart phone without Android was still okay) now the third with Android is a disaster! Sound quality as standard, image quality is very modest, prompting good, but: - Extremely slow response to commands (processor too slow and memory too small) - Ever, the software depends on: time not command acceptance, sometimes no Internet, no mobile network times ... - At least one or twice a day you have to restart because the display is not responding - Except fingerprints on the display happens often nothing - Continue the battery capacity is abysmal (it does not even holding a day!) - Even if there is a SIM card removed no better, and I buy not a dual SIM phone to it then with only one card to use .... Conclusion ': absolutely not recommended
