Kobo Aura H2O Waterproof eReader Black N250-KJ-BK-S-EP From Japan Waterproof: IP67 compliant (allowing the use of up to 30 minutes at a depth of 1 m) Display: 6.8 inches Carta E Ink HD touch screen Resolution: 1430 x 1080 (265 dpi) Built-in memory capacity / usable area: about 4 GB / about 3 GB