Verizon is raising the price of its unlimited plan while introducing a slightly cheaper, more limited version.

All major carriers now offer unlimited plans. Verizon, like its rivals, will start charging more for higher-quality video while hoping to attract cost-conscious customers with a cheaper plan.

Verizon's unlimited plan had cost $80 for one line. Beginning Wednesday, with HD video - capped at 720p for phones - it'll cost $85, while plans with DVD-quality streaming will cost $75. For a family of four, the "premium" version costs $200; the cheaper plan is $160.

Existing customers can keep their unlimited plans, but their video quality is now limited to 720p as well.