In 2012, Samsung Electronics spent over $4 billion on advertising. Far more than the other companies and over four times as much as Apple.
In this context we can see that while both Apple and Samsung grew their advertising almost at the same rate, doubling their budgets during the last four years, Samsung Electronics has a far higher ad budget. More than four times higher, actually. Regarding Sales Promotions however, the comparison is far harder to make. I haven’t any way to guess how much Apple spends relative to the $5.3 billion Samsung spent.
Check out the chart or hit the link below for more analysis.