January 07, 2021 Oppo A15s. Oppo is bringing the A15s, one of its latest budget-friendly smartphones to Singapore. First announced in December 2020, the Oppo A15s has just about everything a user needs for a greater entertainment experience in their smartphone. It packs a generous-looking 6.52-inch Waterdrop Screen, which is actually an IPS panel rated at 1,600 x 720 pixels resolution that's sufficient for most online content. Like its massive 4,230mAh battery capacity and its Dirac 2.0 sound-correction technology, other headlining features were also designed to maximise video-bingeing on the Oppo A15s. Oppo topped it off with its built-in Memory Defragmentation 2.0 software, which reduces memory fragmentation (that, in turn, increases general performance by 5 per cent).