Finnish tech company Jolla has re-opened funding for its first ever tablet on Indiegogo with an improved 64GB device. Customers who backed the original 7.9-inch Jolla Tablet before December 11th can upgrade to the new model for $25, or new customers can buy it outright for $249.

As well as improved storage, the updated tablet has been given a slight battery bump (4300mAh to 4450mAh), a fully laminated display, gyroscope and compass sensors. The new tablet also offers support for microSD cards up to 128GB in size, but that comes with a catch. "Due to Microsoft’s licensing limitations," says Jolla, "cards over 32GB that are formatted in Jolla Tablet will not be readable with Windows computers or devices that advertise microSDXC support (cameras/phones/tablets)." This is because Jolla hasn't licensed Microsoft exFAT for its Sailfish OS.