Samsung is scheduled to launch the Galaxy S10 lineup at the Unpacked event on the 20th of this month in San Francisco. Even before the official announcement, a lot of information about the upcoming devices has already been leaked, leaving the Korean company with very little to surprise at the event.Thanks to the source code of Samsung Russia’s Galaxy S10 teaser page, we now have details about the flagship’s pre-order promotion and release date as well. A line in the source code reveals that Samsung will offer free Galaxy Buds with Galaxy S10 pre-orders in Russia. The same page also mentions the pre-order period as February 20 to March 7, which is in line with the March 8 release date reported previously.The free Galaxy Buds promotion may not available in all the marketsWe have seen Samsung coming up with different pre-order offers in different markets in the past, so there is no guarantee that this free Galaxy Buds promotion will be available in all other regions. Nevertheless, it is safe to presume the pre-order period and the offer will be applicable to at least a few other markets around the world.The Galaxy Buds are not yet released and are expected to be launched alongside the Galaxy S10 at the Unpacked event. Going by the previous models, they are expected to cost around $200 at launch, which translates to a sizeable discount for those pre-ordering the Galaxy S10. The devices also make a good combination as a recent picture revealed that the Galaxy S10 can wirelessly charge the Galaxy Buds with its PowerShare reverse wireless charging feature.