A rangefinder camera (e.g. Leica M9 with small lens attached) with space for a passport, tickets, memory card, phone etc.
A small mirrorless camera (e.g. Olympus E-PL10, Canon EOS M200, Sony A6000, Fujifilm X-A7 with small lens attached) with space for a passport, tickets, glasses case memory card, smartphone etc.
A small fixed lens camera (e.g. Fujifilm X100F, Sony RX100 VII, Leica D-Lux 7 etc) with space for a passport, tickets, Nintendo 3DS, memory card, phone etc.
Small-to-medium binoculars (e.g. Leica Ultravid HD-Plus 10x42 or ZEISS Victory SF 10x42) with space for passport, tickets, glasses case, iPhone etc.
iPad Mini (6th gen), Amazon Fire 7" and similar very small tablets.
Please note that there is no way to sub-divide the main compartment in this bag, so the iPad Mini may bump against any camera gear you have inside with it. Adding a very slim case may be sensible. Storing a tablet will reduce the space available for camera gear. Aim for tablets less than approx 195mm (7⅝") tall and 135mm (5¼") wide if you can, although slightly bigger is possible.