Which tech giant unveiled a new line of foldable smartphones in 2022?

Which tech giant unveiled a new line of foldable smartphones in 2022?

Step 1: Identify the year mentioned in the question, which is 2022.
Step 2: Recall which tech companies are known for making smartphones.
Step 3: Focus on the companies that are often referred to as 'tech giants'.
Step 4: Think about any announcements made by these companies in 2022 regarding smartphones.
Step 5: Remember that Samsung is a major player in the smartphone market.
Step 6: Confirm that Samsung unveiled new foldable smartphones in 2022.
Step 7: Identify the specific models released, which are the Galaxy Z Flip 4 and Galaxy Z Fold 4.

No concepts available.