You haven't had many options for checking Gmail on the iPhone 6 and 6 Plus so far. Unless you're happy with Apple's stock email client, you've typically had to use blown-up versions of earlier apps. You won't have to face that dilemma any more, though; Google has released an update to its Gmail app for iOS that does justice to the higher display resolutions on new iPhones. It's a simple change, but it means that you can see more messages at once (and more of those messages) without sacrificing native Gmail features like labels and stars. Swing by the App Store if you've been jonesing for this upgrade over the past few weeks.