Those pre-order numbers are obvious self-promotion by Samsung. Not that it matters to me how many they sell, but in my opinion they should pay attention to executing the rest of launch than trying to hype. They have good products in their hands thanks to the 14nm process, but the rumored prices (which sound also self-promoted) are not exciting.
Your post is full of inaccurate information. Samsung said it had initially planned 12 million for release, now they will try and get 13 million out before release.
20 million pre-orders is thus unexpected by Samsung. Why would they lie about this?
If you think like that, then we can also say that iPhone sales are also inflated.
BTW 20 million units is a HUGE number.
For example, Apple only sold 35 million iPhone 6 / 6 Plus units in the whole of Q4 2014.
Also Samsung's prices for the Galaxy S6 / S6 Edge are actually around the same as iPhone 6 / 6 Plus.
And that's when the Samsung Galaxy S6 / S6 Edge is clearly superior over the iPhone 6 / 6 Plus.
Samsung's technology is years ahead of Apple's.
This is because Samsung gives Apple its leftover hardware. That's why Apple is still stuck with LPDDR3 RAM, sub-1080p display and 20nm chip (it was Apple's own mistake to go with TSMC).
Asahi Shimbun, one of Japan's largest newspapers, said that there are already 8 million pre-orders in Japan and 7 million in Korea (major carriers like SK Telecom, NT Docomo and Softbank have started pre-orders a few weeks ago already).
Apparently Koreans and Japanese are much more tech savvy than your average westerner. One of the main reasons behind this high number of pre-orders is the highly perceived technological gap between Samsung and Apple. The Galaxy S6 Edge is proving to be very popular in Japan.
Also
Samsung's new technologically advanced UFS flash for Samsung Galaxy S6 / S6 Edge which is 270% faster than the normal flash used in the iPhone 6 / 6 Plus.
For Samsung, this S6 is purely a hardware play. So, they make all their cash on the hardware. Microsoft's got them by the yoke wrt licensing so they (may) need to offer MS's products for FREE. Finally, all the parts in the phone are made by Samsung and the most expensive and important bits are not in competitors' products. All that means costs are not spread out and there is no other avenue to profit from other than the phone. So, it'll most likely be very expensive to make (and buy). I also doubt that they will splurge on marketing like they did in the past, in order to maximize profit per phone. All this tells me that sales may not be as great as Samsung expects because competitors' products are far far cheaper, especially in the midrange.
So, what do we have here?
1)To Samsung, it now has a singular competitor, Apple. But the reality is very very different. They are still competing with other Android OEMs.
2) Samsung has a completely vertical production setup where the vast majority of parts are made and sold in-house. Many of these components are not shared with competitors. That drives up costs. This is different from Apple where they outsource all of the production of their products, allowing them to buy from whoever they want at prices they like. This keeps costs down.
3) After debloating the GS6, Samsung is now starting from square 1. They have no other strategy other than survival. No more ecosystem strategy.
So, I doubt they care about marketshare. Right now they're trying to make the most money out of every GS6 (if they had an in-house economist s/he would tell them they're doing it wrong. This is a pure welfare play and it's a classic mistake made by emerging market conglomerates). It'll be interesting how this plays out over the next couple of months. Will the higher prices convince Chinese customers to return in droves? Their (Android) competitors won't be standing still.
We can't really compare Samsung to either Apple or Android competitors.
Samsung is the largest technology company in the world which manufactures millions of processor chips for its rivals, being the sole maker of Apple Watch's S1 chip, future sole maker of Apple's A9 chip for the iPhone 6s and the only company that can mass manufacture mobile curved screens with high efficiency and reliability.
Samsung's scale is huge... it has the world's most technologically advanced manufacturing facilities for processor chips, DRAM modules, flash storage modules, etc.
Another reason why Samsung can't be compared with Xiaomi or Huawei is that the latter 2 phone makers hardly scrape in a profit. Samsung made $21.45 billion USD in profit in 2014... and that was their worst year since 2011.
I predict Samsung Electronics to make at least $30 billion USD in 2015, most likely much more. Samsung has a lot of new contracts with Apple, Qualcomm and even Nvidia now.
It's manufacturing virtually all the components for the iPhone 6s, future generation Qualcomm chips and some of Nvidia's processor chips as well. It's also manufacturing all of Apple Watch's future curved screens. S
amsung will also supply all of the LPDDR4 RAM modules to Apple for its iPhone 6s. Also TSMC is in crisis because Apple has defected to Samsung.
Samsung Group as a whole may make $60 billion USD this year. This is because the global shipbuilding industry is booming again and Samsung Heavy Industries will probably boom again. Also there are so many subsidiaries in Samsung... it's hard to keep track of how much profit the entire conglomerate makes. Most of them are highly profitable, just not as much as Samsung Electronics.
Samsung also manufactures cars and has high market share in Korea. Brazil also imports Samsung cars. They are also reportedly investing heavily into electric vehicles.
I predict Apple's profits to be anywhere between $40 billion and $60 billion. However we are seeing Apple with a huge pile of cash not investing any into its own manufacturing facilities. Why is this? Because Samsung will already be decades ahead if Apple even begins to invest in its own manufacturing facilities. And Apple doesn't think it's financially sound to develop its own manufacturing facilities. It's much more financially logical to just keep buying Samsung components.
Hence why Apple has moved to electric cars (the iCar). It's because there are relatively few car manufacturers with significant electric car output. Because Apple has a huge pile of cash and because electric vehicles are still not mature technology, Apple can invest into this and expect some profit.