Panasonice Eluga A3 comes with 5.2 Inch HD IPS display with 1280 x 720 resolution which produces 282 PPI resolution. It has Asahi Dragontrail Glass which provides protection against scratches etc.
Yes, Panasonic Eluga A3 does have a hybrid sim slot.
Panasonic Eluga A3 does come with Fast charger. To get the fast charging, you need to use the company provided charger.
Panasonic Eluga A3 is available in 2 colors - Gold & Mocha Gold.
Yes, Panasonic Eluga A3 does have support for the OTG.