The IdeaPad S10-2 is the latest generation 10" netbook from Lenovo, offering the 1.6GHz N270 Intel Atom processor and a 6-cell extended battery. Lenovo redesigned this netbook to make it look slimmer and more attractive than its predecessor, giving the edges a rounded look and a more modern appearance. In our review we see how well the IdeaPad S10-2 performs in our tests, to help you make an informed buying decision.

Lenovo went with an extended battery that significantly improves runtime over the smaller flush-mount one. The downside to this is it sticks out the back, and raises the netbook up off a surface about 0.75". Some could argue that it moves the keyboard into a more comfortable typing position, or it works great as an extra handle. I would personally like one that just sticks straight out the back, making aftermarket carrying cases much easier to choose.

Build quality is very good, with firm plastic used throughout the chassis and very little obvious flex or squeaking when you are carrying the netbook around. The screen hinges feel solid, needing two hands to easily open up the display. The matte plastic finish on the inside and bottom of the notebook stayed scratch free throughout the review. Likewise, the glossy finish held up surprisingly well; it did, however, give us a few scares, making us think we created huge scratches... which turned out to be smudges. Even if you did scratch this model, the black finish hides most blemishes (including smudges and dust).

From an upgrade standpoint Lenovo really wins our hearts with its user-friendly design that puts every swappable component behind one of two removable panels. Under the main panel, we have access to the hard drive, wireless card, and spare mini-PCIe slot with the connector included (some dont solder this in place so they can save money). The other slot is for the system memory, which is expandable to 2GB total. The only thing that could have made this better is if they went with the HP Mini approach, which doesnt even need a screwdriver to open the RAM cover.

The speakers on the S10-2 are lap-firing, facing down underneath the palmrest. If you are listening to the speakers on a flat desk surface you can hear the full (albeit limited) range of the speakers, but if the notebook is sitting on a soft surface like your bed or lap, they get quite muffled. Music from the speakers sounds clear and crisp with excellent higher frequency reproduction, but falls flat with midrange and low-frequency support. For VOIP, streaming music, or YouTube they will probably work fine, but headphones would be the best option if you plan on watching a movie or are doing something that requires you to pay attention to all the little nuances of the audio source.

The touchpad is a Synaptics model with limited multi-touch support. The only multi-finger control you get in the control panel is "pinch", to zoom in on the cursor area. Just the same, sensitivity and speed were excellent, with no lag present in our testing. The size of the touchpad could be slightly larger or wider, to give a more defined scroll region. The surface texture is a smooth, almost gloss finish, which has decent traction but still lets a sweaty finger glide across the surface without sticking.

Normally, users buying a netbook (outside of the ASUS N10 with dedicated graphics) understand that gaming just isnt going to be realistic. For this reason we find 3D benchmarks, which normally register very slow performance, to not be as relevant for these systems. Thus, we are shifting toward HD movie tests for netbooks, which are more in the realm of what a netbook can handle on the high end in terms of performance. In our HD video test the S10-2 played up to 480p and 720p video without much trouble. 720p video was starting to task the processor leaving little overhead, but it was very watchable. However, 1080p video was badly out of sync and painful to view.

In our ongoing quest to provide helpful information to our readers we are adding the following video playback table to our reviews of netbooks. Since netbooks are starting to be used for mobile entertainment (watching movie trailers or streaming video) its important to know how a netbook performs when trying to play a simple video file. We selected a family-friendly movie trailer and downloaded three different versions in 480p, 720p, and 1080p resolutions. We used the CCCP Codec Pack for decoding and Media Player Classic Homecinema (version 1.1.796.0) for playing all of the video files.

Lenovo Value line G550 Specifications:

• Intel Pentium Dual-Core T4200 (2.00GHz, 1MB L2 cache, 800MHz FSB)
• Microsoft Genuine Windows Vista Home Premium (w/ SP1)
• 15.6-inch glossy 16:9 display (1366x768)
• Intel Graphics Media Accelerator 4500MHD
• 3GB DDR3 1066MHz RAM
• 250GB Western Digital 5400RPM HDD
• SuperMulti DVD+/-RW Optical Drive
• Broadcom WiFi (802.11b/g), 10/100 Ethernet, Modem
• 6-Cell 11.1V 48WHr Battery
• Limited 1-year standard parts and labor warranty
• Dimensions: LxWxH, 14.9 x 9.6 x 1.4"
• Weight: 5lbs 9.0oz
• Price as configured: $549

Build and Design
The design of the G550 has changed slightly from the G530, switching from a smooth matte exterior finish, to a black weave pattern. The new cover is every bit as strong as the last one, preventing any screen distortion even if you hit or flex the back of the screen. The interior of the notebook shares the same color as the lid, but is textured with a rougher matte finish similar to what you would find on unpainted sections of a ThinkPad. Lenovo took the back-to-basics route with the color scheme on this notebook, making it entirely black inside and out.

The chassis is constructed entirely of plastic, but where most budget notebooks might feel flexible or flimsy, the G550 feels like a solid block of sturdy material. When talking about the palm rest on most notebooks, including ThinkPads, notebooks with good support still show some flex under a very strong grip. Somehow squeezing the palm rests on the G550 feels like you are trying to squeeze a rock. Other areas of the notebook share the same toughness, including the keyboard and surrounding trim.

To upgrade components the G550 has easy access panels to the memory and CPU, wireless card, and hard drive on the bottom of the notebook. No components, including the processor, had "warranty void if removed" stickers, making it very easy to handle upgrades or repairs in the future.

Screen and Speakers
The 15.6" LCD is average compared to most 15-16" notebooks, with bright and vibrant colors and decent viewing angles. The G550s big change is the transition away from the 16:10 screen size to the wider (but shorter) 16:9 panels. The screen offers a glossy surface, which helps improve colors and contrast at the cost of added reflections and glare. Compared to "frameless" displays the reflections were tolerable as long as you were not outside under direct sunlight. Screen brightness was adequate for viewing in bright office conditions, but might not cut it outside unless it is an overcast day. Vertical viewing angles were adequate with a broad viewing sweet spot measuring 30 degrees forward or back before colors started to wash out or invert. Horizontal view angles were much better, showing minimal color distortion at steep angles.

The speakers are located on the front edge of the palmrest and sound more than adequate for playing music or watching streaming video. Sound quality isnt the best compared to other notebooks of this size with a tinny sound that lacks bass. Headphones would be a good accessory for this notebook.

Keyboard and Touchpad
The keyboard is easy to type on, sharing the same comfortable and durable feel as my ThinkPad T60 keyboard and only differing in layout. Individual key action is smooth with no audible click when pressed. The keys are textured with a smooth matte finish, giving decent traction for typing ... unlike the glossy keyboards we are seeing on a greater number of notebooks these days. Keyboard support is excellent, barely a hint of flex on the main section of the keyboard. The newer 16:9 chassis on the G550 allowed Lenovo to add a numberpad to the keyboard, but they didnt change the support under that side of the keyboard frame. It doesnt appear to have much flex, but it has just enough to make a squeaking sound against the optical drive when press down. Media-related keys are limited to touch-sensitive mute and volume up/down buttons located above the keyboard.

Lenovo transitioned to a new touchpad on the G550, switching from the Synaptics model on the G530 to an ALPS pad. The ALPS pad doesnt have as quick of a refresh rate, so at times it feels like the pointer is lagging behind your finger. Another problem is the surface isnt as sensitive for users who like to use tap to click and tap to drag frequently. On the Synaptics pad it is easy to drag and lift off, while the ALPS models seem to need a strong tap at the end, otherwise it wont let go of the selected item and you keep dragging it around the screen. The touchpad buttons are similar to the old ones, with shallow feedback and giving off a positive "click" when pressed.

Ports and Features
Although the G550 is now larger than the G530, Lenovo still managed to decrease the amount of ports available. The ExpressCard slot is missing, USB ports are down from four to three, and the modem jack is gone. I can see no other reason besides cutting costs for such a loss of features.

Front: Wireless on/off, audio jacks

Rear: Screen hinge

Left: Kensington Lock slot, LAN, VGA, two USB

Right: one USB, optical drive, AC power

Performance and Benchmarks
The Lenovo G550 works very well as a desktop replacement notebook, handling most tasks with ease. The target market for this notebook includes small businesses, students, or home users looking for a basic machine. The G550 has no problems surfing the web, playing SD or HD movies, or playing the occasional 2D game like Peggle. Compared to the older G530, Lenovo switched from using DDR2 memory in favor of DDR3 which is faster and now becoming cheaper. In theory this change could have meant greater performance, but we didnt see any significant change. Both PCMark05 and 3DMark06 dropped, while wPrime saw a small boost in speed.

wPrime processor comparison results (lower scores mean better performance):

PCMark05 measures overall system performance (higher scores mean better performance):

3DMark06 measures overall graphics performance for gaming (higher scores mean better performance):

HDTune storage drive performance test:

Heat and Noise
Thermal performance of the G550 is very good thanks to the large chassis, slower processor, and integrated graphics. Under stress the system controlled temperatures very well, and under normal loads the bottom of the notebook and palmrests stayed cool to the touch. Fan noise was minimal, with it staying off under light system loads, and going just above a whisper under intensive use. The one hotspot that stood out on the G550 was the panel beneath the hard drive that warmed up considerably if you were stressing the disk. The temperatures shown below are listed in degrees Fahrenheit:

Battery
The new Lenovo G550 uses a slightly smaller battery than the G530, but with a more efficient processor it consumes less power and gets longer runtimes. The G550 stayed running for 4 hours and 18 minutes in our tests with the screen brightness reduced to 70%, Vista on the "Balanced" power profile, and wireless active. This is better than the original 3 hours and 29 minutes the G530 managed with a larger battery. While I hate to see the battery capacity decrease, at least the efficiency made up for it and gave us a net gain in battery life.

Conclusion
The Lenovo G550 is a very solid and durable notebook, but now is missing some of the features that were standard on the previous revision. From what could only be considered cost-cutting measures, Lenovo took away one USB port, removed the ExpressCard slot, and moved to an ALPS touchpad. These types of changes might not look as bad if the retail price also dropped, but it is selling for the same price as (if not slightly more than) the previous model. I would still gladly take this model over a lot of the small-business targeted notebooks on the market, but it is just a shame that it is no longer as nice as it once was.

Pros:

• Almost tough enough to stand on
• Textured interior and exterior finish hides smudges and fingerprints
• Comfortable and solid keyboard

Cons:

• Missing features from previous revision