W4

The W4 was released in the days of Windows Phone 7.5, but Acer decided to bail from the platform before the launch of the next OS version, Windows Phone 8. In June 2013, however, Acer showed a slide at a company event, which indicated that it was planning to launch a new handset in the first half of 2014, with the intention of providing “a unique experience across Win8 and WP8”.