Bookeen - Cybook ePaper - the eBook reading device

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An optimized form factor

The Cybook dimensions are very close to the ones of a paperback. As a paperback, the Cybook can be easily arranged in a hand bag. The Cybook is even much thinner (-70%) than a standard paperback and is thus easily transportable.

Thin and light

Thanks to its 1mm thick screen and its tiny Lithium Polymer battery, the Cybook offers a wide reading surface within an incredibly thin and light design.

Paperback	Cybook
7.9" x 5.1" x 1.1" 11.2 ounces 200 x 130 x 28 mm 317 g	7.4" x 4.7" x 0.3" 6.13 ounces 188 x 118 x 8.5 mm 174 g

An impressive battery lifetime

The ePaper screen technology requires no power to maintain an image, as long as the Cybook displays the same image, there is no power consumption. This technology drastically reduces power needs. Thus, the Cybook offers an impressive battery lifetime of 8,000 screen refreshes with a full charged battery. Look at the following table to see how long you can use your Cybook on a full charge.

(* These figures are theoretical, actual battery life may vary upon usage. Please consult "How does the Cybook battery work?" from the FAQ to understand more precisely battery operation)

Casual reader	Average reader	Heavy reader
80 refreshes/day	160 refreshes/day	320 refreshes/day
100 days 3 months	50 days 1 to 2 months	25 days 3 weeks

(Click on the question to get the answer)

Frequently asked question: Form factor and battery lifetime

What happens when the batteries are completely discharged?

Nothing.

Your data have been kept in persistent internal storage memory or SD card. You just can't use your Cybook anymore until you put your Cybook on charge.

How many books can I store in my Cybook?

You can store your books either in the internal memory of the Cybook or in an extra optional memory card.

The internal storage capacity is made of 512 MB (Mega Bytes) of persistent memory. It represents 1000 standard books in Mobipocket, HTML or Text format.

You can increase your storage capacity by using an optional memory card and get an extra storage space until 2 GB (2 Giga Bytes = 2 048 Mega Bytes). It represents 10 000 standard books in Mobipocket, HTML or Text format.

How the Cybook battery is working?

The battery of the Cybook is of Lithium Polymer type offering a capacity of 1000 mAh.

It can be changed if needed, as it is located in a compartment which can be opened easily (one screw). Only the batteries sold by Bookeen are accepted for the Cybook.

The battery is recharged via the Cybook USB connector. The charging time is around 3 hours. You can recharge your battery via a connection with a computer or directly from a USB charger provided by Bookeen.

The Cybook can run in several modes:

- Normal mode, the Cybook led is switched on and the processor is running at full speed. While you play a MP3 file the Cybook is running in this mode. In this mode the Cybook battery lifetime is around 3 hours.

- Sleep mode, the Cybook led is switched off and the processor is in sleep mode waiting for an interrupt to wake-up. If MP3 is OFF and you are not turning a page or using a menu, the battery lifetime is one week.

- Off mode, the Cybook is completely switched off; you need to use the ON button to wake it up. It takes few seconds for the Cybook to be up and running. In this mode the battery lifetime depends on energy leak of the battery and the battery reach 0% capacity after more than a year.

As you get in sleep mode between each page flip and the Cybook switches off automatically after a certain delay of inactivity, the Cybook battery lifetime can vary from several hours (MP3 playing) to several month (80 page flips per day with switch-off at the end of each reading session).

How much does the Cybook weigh?

The Cybook weighs 6.13 ounces (174 grams) battery included.

For comparison:

- a standard paperback weighs 11.2 ounces (317grams)

- a 3.5 inch screen smartphone weighs 4.8 ounces (135 grams).

I travel a lot. What will I do with my Cybook?

How many books and magazines can you put in your travel bag? How many books did you renounce to take with you because of the weight? Once arrived to destination, what do you do when you reach the last page of your last book?

If you have your Cybook with you, you will be able to carry with you all the books you want or to download them instantaneously.