This phone is slow, slow and slow in every aspects.
I used 2 differents person’s A3 in 2015. UI and opening & transiting between apps are daaamllyy slow.
They also let me take photo with these A3, took the photo and opened gallery, it hangs more than 5 seconds. even my previous phone was LG L90 which specs are lower, is very very fast compared to the worst expensive phone of 2015 I ever used. here in portugal this phone costs like 250€, so very near of One Plus or LG G3 which are below 300€. my actual phone is Xiaomi Redmi Note 2, I paid it for 150€ and is way better phone quality/price than I ever used, 10000x better than A3.