Instagram is bringing back 3D Touch to their Android app after a brief appearance and disappearance back in early December 2015. Instagram believes that it’s meaningful and beneficial to bring the 3D Touch feature to Android even though 99% of the Android phones out there don’t have pressure-sensitive touch screen.
In a nutshell? This is just a glorified long press on Android as of now, but a very exciting development since 3D touch is bound to become more prevalent in 2016 and beyond!
You do need the latest version of Instagram in order to enjoy this limited feature on Android right now. Go to Play Store and upgrade your Instagram to 7.13.1 and have fun with the peek and pop.