The IP65 specification relates to the CF-19's ingress protection rating, with the first digit relating to the ingress of solid objects and the second to liquids. IP65 suggests that the CF-19 is entirely dust-proof, and that it can stand up to low pressure water jets while retaining functionality. We'll leave why you might use low pressure water jets on an AU$5499 tablet up to your imagination.
The CF-19's moderate internal specifications don't lend themselves to spectacular performance. Its PCMark05 score of 3133 and 3DMark06 score of 517 back that up. In fact, the recently reviewedoutscored it in both tests, despite being nearly half the asking price. Then again, the CF-C1 is nowhere near as tough as the CF-19.
Tough is also a good way to describe using the CF-19. This isn't a machine that's comfortable to use to for extended periods, with cramped keyboard spacing, an odd layout for the cursor keys and a touchpad that works through gloves — but at the cost of being rather slow and unresponsive. Again, it's the balance between the sacrifice for durability and utility, and durability has clearly won.
Battery life for a portable tablet such as this is a key concern, and here the Toughbook gave us two hours and 49 minutes of playback of a full-screen XviD file, with all battery saving measures disabled. That's a deliberately tough test; most users should expect more in real world usage with battery saving enabled, although usage of Wi-Fi might see it dip a bit. Still, this isn't an all-day notebook by any means.
Panasonic's tagline for the CF-19 is that it's for when "failure is not an option". We agree; if you desperately need a notebook that can stand up to some brutal punishment and can afford both the asking price and the compromises in functionality that it brings, it's a good offering. That's a somewhat small niche outside certain business cases, but then those businesses are exactly the ones that should be able to afford and desire this kind of durability.