YotaPhone: Smartphone Redefined With Dual LCD/E-ink Displays
Android Police

Most smartphones today have large touchscreens in front and aluminum or plastic casings at the back. Moscow-based Yota Devices is defying standards by unveiling a smartphone that has a full-color LCD display on one side and a power-saving electronic paper display on the other side. YotaPhone users can perform the usual functions on the regular screen while the e-ink screen will be used for notifications, social media updates and reading.

What Else You Need To Know

  • To be showcased at the Mobile World Congress in late February next year.
  • Features LCD and EPD screens, both measuring 4.3 inches, a 12-MP rear camera, a front facing HD camera, Android 4.2 Jelly Bean operating system, a 1.5 GHz dual-core Qualcomm processor, and 32 or 64 GB of internal memory.
  • Three months ago, it was reported that Amazon was awarded a patent for an innovative tablet that has one LCD screen and one electronic-ink display.

Other sources

Given the fact that the electronic paper display (EPD) should not drain too much energy from the 2100 mAh Li-Ion battery, it stands to reason that the phone will offer users enough usage in comparison with devices that pack only one display. - Cosmin Vasile, Softpedia News  
Android Police
Yota Devices Unveils YotaPhone – A Phone With Dual LCD/E-Ink Displays That 'Keeps You Different'  

The reason behind (between?) the dual screens, Yota says, is to deliver the information users want, right when they want it, without disengaging from the real world by pressing a power button and unlocking a screen.

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Dual-screen YotaPhone features both LCD and E Ink displays
Into Mobile
Russian YotaPhone to sport two 4.3-inch screens, one LCD and other E-Ink; Coming in Q3 2013
YotaPhone introduced with Android 4.2 Jelly Bean, LCD and E Ink displays
Android Community
YotaPhone specs include a 4.3-inch front and a 4.3-inch rear display
YotaPhone Has LCD Front, E-Ink Back, Coolness All Over
I hope to see more phones like YotaPhone come out soon