Size: 6.7" x 4.6" x 0.36" (169 mm x 117 mm x 9.1 mm)
On-Device Storage: 4GB
Battery Life: A single charge lasts up to six weeks, based on a half hour of reading per day with wireless off and the light setting at 10. Battery life will vary based on light and wireless usage.
Charge Time: Fully charges in approximately 4 hours from a computer via USB cable.