[1][2] These are small fixed-lens "point-and-shoot" digital cameras that have a high optical zoom ratio.
Models that include an electronic viewfinder (EVF) have it offset to the side in the style of a rangefinder camera.
Their pocketable form factor differentiates them from bulkier DSLR-style bridge cameras.
It is exceedingly difficult to construct a compact lens with such high zoom ratios, which means that the longest zoom lenses may not be the sharpest.
There are far too many small sensor compact cameras with less than 30× zoom to list here.