Today, some smartphones are using a rotating mechanism like the Galaxy A80 to be able to achieve the front-facing screen design without being hindered by a selfie camera. Of course, smartphones are not the first phones to have a rotating mechanism, but since the end of the nineteenth and early twentieth centuries, people have been able to dial numbers on a landline to call.
While mobile phones do not have a dial design to call, instead, some carriers use scroll wheels to help users manipulate the menu more conveniently. The BlackBerry Pearl 8100 also has a trackball, right in the middle of the navigation keys. The first Android phone, the T-Mobile G1, is also equipped with trackball.
Rotation mechanism is not only equipped as a way to control the machine. The Nokia 3250 can also rotate the bottom half of the camera, containing the camera and keyboard, to be able to hold like a mini camcorder. Nokia N90 can rotate the screen and is also used to simulate handheld camcorders.
Others use a rotating mechanism for cosmetic purposes, such as the Nokia 7370 and Motorola Aura, to give the product a unique look.
Siemens SK65 looks outside like a normal mobile phone, but when turned, it opens the QWERTY keyboard at a 90 ° angle to the camera body, creating a unique cross.
Before the Galaxy A80, Samsung also had many rotating phones, some just beautiful, like the ultra-small Samsung X830, others have the purpose of optimizing the user experience, as the P900 can rotate the screen horizontally. For better TV viewing, this phone comes with a T-DMB TV tuner.
By the time the smartphone, OPPO is the first manufacturer to bring the mechanism back to the OPPO N1 that the company advertised as "the first camera camera in the world." The camera group of the camera can rotate from the front to After that, take care of both the main camera and the selfie camera, and later on, the Honor 7i has a similar design.
Of course, the idea of rotating cameras is also not new. The Motorola T720i, launched in 2002, doesn't have a camera, but you can mount the camera as an accessory and the camera can rotate to select the angle. In 2004, the Samsung i700 had a similar idea but this time integrated camera. Because Samsung's device runs Windows Mobile operating system, it can still be considered a smartphone, so it seems that OPPO is too in a hurry to claim N1 as the "first camera camera in the world".
For a while, this design continues to be revived on two recently launched smartphones: ASUS ZenFone 6 and Samsung Galaxy A80, in which the camera on the A80 also has the ability to both slide up and rotate very interesting.
Not only phones, but Samsung also applies a rotating design on smartwatch with Gear S2, Ger S3 and most recently Galaxy Watch. However, it is possible that Samung's smartwatch future will not have a rotating bezel, since the Watch Active launch, Samsung has removed this design.
Today's smartphones are still going in the direction of mostly simple design, with as few components as possible. This makes the phone more durable and easier to design, but also quite boring. Unique designs like this will help the market become more diverse and users have more choices.