On device screens, DPI refers to the number of pixels a manufacturer can fit into an inch of screen.
Apple’s Retina display was one of the first high-DPI, or high dots per inch, displays mass-produced for consumers. Among other hardware improvements, the iPhone 4 featured what Apple called a Retina display. A Bit of Historyīack in 2010, Apple released the iPhone 4.
Web image resolution for retina display how to#
After seeing how to implement retina images in your own campaigns, we’ll wrap up by discussing some important considerations for anyone working with retina images. In this post, we’ll take a look at exactly how high-DPI displays work and what that means for email designers and marketers. These displays, often referred to as Retina displays (a term coined by the Apple marketing machine), have the power to both enhance any email campaign-or give your subscribers a less-than-stellar email experience. Enterprise Plan Boost collaboration and drive resultsĪpart from the onslaught of screen sizes, the mobile revolution introduces another interesting challenge for email designers: high-DPI displays.Litmus Plus Automate testing to ensure quality.Litmus Basic Build error-free, effective emails quickly.All Plans See solutions for companies of all sizes.