List of devices

Device based on a phone. Up to 2 days of operation on a single charge. Modern apps with images. Fast and responsive interface.

Device based on an e-reader. Up to 3 weeks of operation on a single charge. Black-and-white ink screen. New device.

Device based on a PDA. Up to 16 hours of operation on a single charge. No images in the app. The device is from 2003.