Samsung has announced its fourth-generation of foldable phones — Galaxy Z Fold4 and Galaxy Z Flip4. Like the past year, the phones were unveiled at the company’s annual August Unpacked event, which till 2020 was the launchpad for its Galaxy Note series phones. While Samsung is by far the most successful company when it comes to foldable phones, the Galaxy Z Flip has proven to be the most popular foldable yet according to market research estimates. The smaller foldable of the two, it is the most-popular foldable device in the world. The 2022 model comes with some small but meaningful upgrades. Here’s all that’s changed and not in the 2022 edition of the world’s ‘most-popular’ foldable phone,