▁ 8 0 2 . 1 1 ▁n ▁Wi - Fi . ▁ ▁The ▁S late ▁ 2 1 ▁uses ▁a ▁ 2 1 . 5 - inch ▁IP S ▁panel ▁with ▁a ▁resolution ▁of ▁ 1 9 2 0 × 1 0 8 0 . ▁The ▁device ▁includes ▁a ▁ 2 . 1 ▁meg ap ixel ▁front - f acing ▁camera ▁capable ▁of ▁recording ▁ 7 2 0 p ▁video . ▁It ▁does ▁not ▁include ▁an ▁acceler ometer , ▁which ▁meant ▁that ▁any ▁Android ▁games ▁which ▁use ▁acceler ometer ▁controls ▁cannot ▁be ▁played . ▁The ▁screen ▁has ▁a ▁gl oss y ▁surface . ▁It ▁is ▁an ▁optical ▁touch screen ▁supporting ▁two - point ▁multi - touch ▁via ▁three ▁cam eras , ▁unlike ▁other ▁table ts ▁which ▁use ▁a ▁capac itive ▁touch screen . ▁The ▁device ▁uses ▁a ▁white ▁pl astic ▁ch ass is , ▁with ▁an ▁eas el - like ▁stand ▁on ▁the ▁rear ▁which ▁allows ▁adjust ing ▁the ▁angle ▁of ▁its ▁t ilt ▁between ▁ 1 5 ▁and ▁ 7 0 ▁degrees . ▁The ▁device ▁can ▁be ▁fixed ▁to ▁a ▁wall ▁using ▁a ▁V ES A ▁mount ▁if ▁the ▁h inge ▁is ▁uns cre wed . ▁ ▁A ▁USB ▁keyboard ▁and ▁mouse ▁is ▁bund led ▁with ▁the ▁device . ▁The ▁keyboard ▁includes ▁shortcut ▁keys ▁for ▁access ▁to ▁Android ▁men us ▁such ▁as ▁the ▁home ▁screen ▁and ▁music ▁controls , ▁replacing ▁the ▁usual ▁function ▁keys ▁and ▁Start / Es cape ▁keys . ▁It ▁does ▁not ▁contain ▁an ▁internal ▁battery , ▁requiring ▁users