What are the key differences between a 'cost focus' and 'cost leadership' competitive strategy?

A 'cost focus' strategy aims to reduce the costs of products to a narrow part of the market whereas a 'cost leadership' strategy focuses on delivering products with features that are acceptable to customers at the lowest cost and to a large part of the market

A 'cost focus' strategy aims to deliver products to customers that are perceived as having no value whearas a 'cost leadership' strategy focuses on delivering products with features that are unique and highly sought after

A 'cost focus $\text{'}$ strategy aims to deliver products to customers that are perceived as being different in ways that are important to them whereas a 'cost leadership' strategy focuses delivering products with features that are acceptable to customers at the lowest cost, relative to that of competitors

A 'cost focus' strategy aims to to provide many benefits to a narrow section of the market in other words a perceived different experience while a 'cost leadership' strategy aims to reduce the costs of products to a narrow part of the market