The iPhone 5C is limited (for the time being) to European stores like in the UK.
The 8GB iPhone 5C option sells for 50 less of the country’s currency than the 16GB option. As an example, Apple’s UK online store for £429 unlocked, making it £40 cheaper than the comparable 16 GB model.
We are expecting the iPhone 5C’s 8GB model will showing up in other countries stores sometime within the next few days. For the latest stick with us as this will continue to develop (maybe… probably)!
The mid-tier iPhone segment is growing year-over-year and the 8GB model provides a more affordable option for markets where LTE is becoming more established,” an Apple representative told Re/code. The iPhone 5c, unlike the iPhone 4s, which is also still sold, supports LTE networks.”