TrustedReviews posted a review of a Digital Pen Head 2 Head between the Logitech io2 Digital Writing System and the ACECAD DigiMemo A501.
The digital pen itself has a camera built into the end of it, next to the nib, which records the dots. This means it’s quite a chunky thing and its cigar-shaped profile won’t be to everyone’s taste either but it is nicely made and it feels reassuringly expensive. Inside it can be found more fancy electronics - 856KB of flash memory for storing up to 40 pages at a time and a rechargeable lithium ion battery (non-user replaceable) that’ll give you around three hours of battery life on continuous use (280 with the cap on and the pen turned off).Read more
