The Writing Light runs about 40 hours on two 3V lithium batteries. It comes in blue and pink. The pen is 5.8 inches by 1.6 inches by 1.6 inches and retails for $9.95.

Digital notebooks are the perfect marriage of low-tech (writing by hard) and high tech (everything a tablet computer can do)—but there are a lot of different options to choose from. From Boox to ...