Hakuri 4

The Hakuri 4 is a multi-touch, slate-shaped smartphone designed and sold by Nashi Electronics of Shihaisha. It will run on the future version of Nashi's Operating System: PearOS 2.5 "Brisk." It is taller and wider than its predecessor, Hakuri 3. The PearOS intelligent personal assistant uSay has been re-updated and vastly improved on the phone, and can now do more than its competitors such as Siri and S Voice.

Software and services
The Hakuri 4 will use the PearOS 2.5 "Brisk" mobile operating system. Polar introduced a whole new design for the smartphones using the system, and added more interaction with the user interface of the system. uSay on the Hakuri 4 will be greatly improved, which will add many features that other intelligent personal assistants don't have at the time. It will use Wolphram Alpha for all of its online searches.

There will be a great variety of pre-installed applications for the Hakuri 4. Soar, CloudTalk, BeePhone, EyeCam, PollenPlayer, Nashi Outlet are just among the few of those pre-installed applications. Third-party applications can be downloaded and bought through Nashi Outlet.

The Hakuri 4 will introduce the use of more smart features that will make interaction with the phone even better. It will also improve human-device interactivity. It will see the return of Instacall, which starts a call to your friend by instantly bringing the phone to your head and using uSay to call a certain contact. To compete with that of the future Galaxy S4 by Samsung, it will also see some eye-tracking technology. Observision, built into the phone, will track your eyes and scroll long pages if detected. Observision will also use a screen lock when it detects that you're looking at the screen. It will also contribute to EyeCam, when one waves three times over the front or rear-facing cameras, the camera will activate to the respective screen.

Hardware and design
The Hakuri 4 features a glass/plastic chassis depending on the country. It measures 196 mm (7.7 in) long, 92.7 mm (3.65 in) wide, and 4.23 mm (0.167 in) thick weighing in at 121 g (4.3 oz). Nashi kept the favored rounded rectangle shape of the previous phone Hakuri 3 and also changed the overall size. The Hakuri 4 only comes in a white color, although Nashi is thinking of adding additional colors such as aqua and yellow. The Hakuri 4 has a maximum of 2 GB of RAM and comes with an option of 32 or 64GB of internal storage.