Yes, it was the first one with a retina screen. The change from the 3GS to the 4 was amazing. Also, the overall design was much slimmer. It seemed like a huge u

Yes, it was the first one with a retina screen. The change from the 3GS to the 4 was amazing. Also, the overall design was much slimmer. It seemed like a huge upgrade. Most of the upgrades since have felt much more incremental.