The back panels of the Galaxy S9 lineup will "change a lot," one known industry insider from China said earlier today, without elaborating on the matter. Samsung's upcoming flagship duo is widely expected to adopt a dual-camera setup like the one introduced by the company with the Galaxy Note 8, though its exact implementation of such an imaging system may significantly differ from the one seen on the firm's recently launched phablet. One major difference between the setup seen on the Galaxy Note 8 and one that may end up being featured on the rear plate of the Galaxy S9 and Galaxy S9 Plus may be the positioning of the fingerprint recognition reader; the placement of the fingerprint reader has been one of the main complaints consumers had about the Galaxy S8 lineup and while Samsung tried addressing those issues by separating the scanner and the nearest camera lens with a dual-LED flash and heart rate monitor on the Galaxy Note 8, some vocal users still weren't happy with its position.
Consumer feedback may hence prompt the South Korean phone maker to place a fingerprint reader beneath the camera setup of the Galaxy S9 series and possibly even change its oval-like shape to a traditional circle, thus marking a significant design change that the aforementioned source claims will happen. Likewise, Samsung's flagship devices have had their dual-LED flashes and heart rate monitors positioned above each other for years now, which is another hardware element that the Seoul-based tech giant may change for the Galaxy S9 flagships. The reasoning behind Samsung's supposed decision remains unclear, though it's presumably an effort to make the 2018 devices more elegant and functional as these two goals were the driving force behind most of Samsung's recent phone design decisions, not accounting for those made due to technological limitations.
The Galaxy S9 and Galaxy S9 Plus are expected to be introduced in late winter or early spring, presumably around the time of Mobile World Congress 2018 which is starting on February 26th, though Samsung may once again hold a dedicated Unpacked event for the announcement of its latest premium smartphone tandem. Both devices should be available for purchase in most parts of the world by April and are likely to be one of the most commercially successful handsets of the year, as is usually the case with high-end Android offerings from Samsung.