Надо расскрыть скобки: a turbo can store (many) photos than a smile 100, it has a (big) screen, then a smile is 100, and it's like (light) like a smile 100. a smile 100 can store (a few) photos of everyone, but this is one of our bestsellers, because it is (cheap) of all. the 350 flash is (expensive) of the three models, but it can store (many) photos. although he (heary) than the other two models, he has a (large) screen of all. so this is a great quality.

A turbo can store (more) photos than a smile 100, it has a (bigger) screen, then a smile is 100, and it's as (light) as a smile 100. A smile 100 can store (fewer) photos of everyone, but this is one of our bestsellers, because it is (the cheapest) of all. The 350 Flash is (the most expensive) of the three models, but it can store (more) photos. Although (heavier) than the other two models, it has (the largest) screen of all. So this is a great quality.