Specs:

Operating system: Windows 7 32 or 64-bits
Processor: Intel® Core ™ 2.53GHz i5-460m (turbo boost up to 2.80GHz)
Chipset: Mobile Intel® Express Chipset HM55
Graphics card: Intel® HD Graphics
Memory: 2GB (up to 6GB) of 204-pin SO-DIMM DDR3 RAM
Storage: SSD128GB (up to 256GB)
Screen: 10.1” WXGA (1366 × 768)
Sound: PCM sound (stereo 24-bit) / Intel® High Definition Audio
I/O: HDMI, Wi-Fi (ABGN), WIMAX (IEEE802.16e), Fast Ethernet standard, “1000BASE-T”, 3 USB 2.0 ports, analog RGB, SDXC / SDHC / SD memory card reader,
Battery life: 12 hours (8 hours without eco mode)
Weight: 1.205kg (with jacket), 0.99kg (no jacket)
Boot time: 15 seconds

Look and feel:

At first glance, the J9 looks remarkably like a netbook, with its 10.1” screen and compact body. But upon further examination, a few marked differences emerge that truly set it apart: it’s much thicker, for instance, than your average netbook; the leaf type keyboard takes a while to get used to.
Also, I found Panasonic’s distinctive circular touchpad a true hassle to use. But that’s really a matter of taste.

Weighting slightly over a kilo (1.205kg to be precise), the J9 is truly easy to take anywhere with you. Of course, unlike a smartphone or 7-inch tablet, this device is not meant to be handled with one hand. On the other hand, when fitted with its protective jacket, the J9 can (according to Panasonic!) survive a 76-cm drop.

Screen (9/10):

The screen is really crisp and bright, with a very high resolution (1366×768) for such a 10.1” display. When browsing, I sometimes found fonts too small to read comfortably, but this is really a matter of taste, and the extra high image quality more than makes up for it.

Sound (7/10):

Sound quality is decent, but I mostly used headphones when watching movies. Then again, it’s a business-oriented ultra-portable laptop, which means that sound quality is usually not a priority for the target customers.

Connectivity (10/10):

The J9 is extremely well equipped. With 3 USB 2.0 ports, an HDMI out, analog RGB, Fast Ethernet, “1000BASE-T”, Wi-Fi (ABGN), WIMAX (IEEE802.16e), this little notebook will fulfill all your connectivity needs, at home as well as on the go.

Performance (9/10):

General
Booting the J9 is fast. Really fast. Like, 15 seconds fast. To launch Windows 7, I’d say that’s pretty impressive. Overall, the J9 gives an impression of speed and efficiency that’s partly due to its SSD drive, high-performance processor and (in my case) high RAM count.

Video
Even though it’s equipped only with an Intel HD graphics card, I managed to play decently recent 3D games on it with admirable performance, but don’t expect to play Crysis or the latest, CPU-hogging games on it. I had no trouble playing even 720p videos. Playback was smooth and pleasant to watch on such a high-quality HD screen.

Battery life (10/10):

Extremely impressive. In ECO mode, you can expect up to 12 hours of battery life, which is more than any netbook at the moment, and even more than the iPad. In moderate usage, you still get 8 hours.

I tested it and frankly, it’s kind of mind-blowing. I mean, this is a powerful laptop we’re talking about, not a netbook, and yet the battery lasts so long it’s almost unnerving.

Pros:

· Downright amazing battery life
· Powerful yet compact and light
· Great HD screen
· Netbook sized
· The protective jacket is very handy

Cons:

· Circular touchpad not user-friendly
· Too expensive
· Too small to use as a replacement desktop
· Keyboard feels a bit cramped
· Bulkier than a netbook

Conclusion:

The J9 is an excellent compromise between the portability of a netbook and the hardware punch of a regular-sized laptop, the perfect fit for professionals who need top-of-the-line performance anytime, anywhere thanks to a powerful processor, ultra-fast SDD and superlative battery life. The only snag is its price: this is a very expensive piece of technology, more pricey than most notebooks with comparable hardware (in justice, it can’t really be compared to a netbook.