Lenovo IdeaPad Yoga 13

Pros

    Great keyboard, trackpad and touchscreen
    Smooth, responsive display
    Excellent speakers

Cons

    A little heavy

Bottom Line

The Yoga is perhaps one of the most usable devices on the market. It has a great keyboard, trackpad, and touchscreen, and can be used in multiple positions.
Manufacturer’s Description

Yoga 13 combines the productivity of an Ultrabook with the touch experience of a tablet, taking full advantage of the Windows 8 functionality. The screen flips a full 360 degrees into four modes that make it easy to create, share, or consume content. Combine those with its long battery life, and the Yoga 13 provides ultimate versatility.
Performance
Product Type
Subcategory     Ultra Portable
Overall Performance
Worldbench Score     60
Worldbench Version     8
Battery
Battery Life     5:37  (hh:mm)
Start Up
Start Up     7.9  seconds (lower is better)
Office Productivity
PCMark 7 Productivity Suite     2115  score (higher is better)
Web Browsing
Peacekeeper     1956  score (higher is better)
Storage Performance
File Compression     142  seconds (lower is better)
PCMark 7 Storage Test     4880  score (higher is better)
Power Usage
Idle power usage     10.4  Watts
Content Creation
Image Editing     283  seconds (lower is better)
Audio Encoding     308  seconds (lower is better)
Video Encoding     235  seconds (lower is better)
Gaming
Civilization V, Leader Benchmark, Low Quality, 1366x768     368.7  Frames per second (higher is better)
Dirt Showdown, Low Quality, 1366x768     30.1  Frames per second (higher is better)
Civilization V, Late Game View, Low Quality, 1366x768     10.3  Frames per second (higher is better)
3DMark 11, 1280x720 Performance     579  score (higher is better)

Source: pcworld