Logitech's new iPad cases: Hinge, Turnaround, Big Bang, Ultrathin (photos)

The Hinge, Logitech's new iPad Air folio case, can bend to any angle. And its front cover has an attractive fabric-style cover. The cost? $59.99 (£54.99) for iPad Air, or $49.99 (£45.99) for Mini.

A rear hinge on the Hinge can bend within a 50-degree range to any angle in between.

Here's the Hinge in a semi-reclined mode. It holds its position perfectly.

The Hinge from the back. Camera hole is exposed.

The Hinge bends with a smooth but strong motion, feeling like flexible metal.

It's a pretty comfortable case, and the hinge stays shut when opened in folio mode.

The Logitech Turnaround ($59.99 for iPad Air, $49.99 for Mini; both £44.99 in the UK) has the same price as the Hinge, but a different use case. It's a swiveling case that works for landscape or portrait mode viewing.

Folded closed, the Turnaround has a brushed-plastic type of finish and an executive-style gloss.

The Turnaround folded into one of its pre-set viewing angles, in landscape mode.

Turnaround in portrait-mode viewing. The iPad stays snugly in place, with a wide base.

Drop resistance, spill resistance, and a slim design. The Big Bang is ruggedized, but it costs more: $99.99 (£79.99) for the Air version, $79.99 (£69.99) for the Mini.

A slimmer design, and finally adjustable angles: the newest version of Logitech's already-great keyboard accessory, coming to the US, UK and Europe in May, could be its best yet.

A look at the Ultrathin keyboard cover from the side: its hinge has changed, but it still magnetically attaches like a cover.