Samsung's Galaxy S6 and S6 Edge are without a doubt the company's best smartphones to date. The devices have received positive feedback since the day they were unveiled, leading to lofty sales expectations of up to 70 million units.

A revised outlook from Deutsche Bank, however, forecasts Samsung to sell a "respectable" 45 million units through the end of 2015. That may be respectable for most manufacturers but it's likely a tough pill for Samsung to swallow.

The Galaxy S4 is Samsung's best-selling smartphone to date. The 45 million Galaxy S6 and S6 Edge phones that Samsung is predicted to sell this year is the same number the flagship from two years ago sold.

The Galaxy S5, as you may recall, failed to live up to expectations as consumers made it clear that they were tired of the same recycled plastic design. Poor earnings led to the departure of a few top executives although mobile chief JK Shin stuck around.

Samsung got its act together with its latest batch of smartphones. In our review of the devices, we found them to be polished to a sufficient standard both in terms of hardware and software. It's not perfect, however, as the Korean tech giant ditched the removable battery and microSD card slot that Galaxy fans have become accustomed to.

We won't know for sure how the Galaxy S6 and S6 Edge are doing until Sammy releases official figures but it's crazy that we're living in a time where selling 45 million smartphones in three quarters is just "respectable."