Description and Value, which should be bold?

On a single detail page, which is better? Or should we not bold anything?

(bold descriptions)
Screen size: 960x480
Dimensions: 8mm x 102mm x 64mm
Battery Life: 18hrs
Capacity: 32gb
Processor: 64bit A7

or

(bold values)
Screen size: 960x480
Dimensions: 8mm x 102mm x 64mm
Battery Life: 18hrs
Capacity: 32gb
Processor: 64bit A7