I've owned both the Lynx I and II. In fact, I have one of each new in the box. The I is in shrink-wrap where as the two was never sealed. That said, my childhood Lynx was a II and I got a used Lynx I later when buying games off eBay. I was never impressed with the I. The D-Pad on it just didn't feel great, the screen wasn't as good, and the ergonomics were nowhere near as comfortable. The only reason I bought a new one was because it was cheap and I figured it didn't hurt having some spares around as it's my personal favorite handheld.