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STORY: Shares of Apple and some of its suppliers fell this week following news that Beijing ordered some central government employees in recent weeks to stop using iPhones at work.

Landsberg, speaking to Reuters' Lisa Bernhard, said the move was "payback" for U.S. sanctions against Chinese smartphone maker Huawei, as well as for rumors that was Apple looking outside of China - and, in particular, at India - as a potential manufacturing base.

But Landsberg said Apple has bigger problems than China: namely, the iPhone itself - new models of which will be rolled out on Tuesday. The new versions of Apple's flagship product, said Landsberg, "don't have, from what I've seen, a huge amount of technical upgrades. So, it's not like a must-have phone. They're raising prices across the board, and that's going to be a U.S. problem as well."

Landsberg also discussed why he thinks investors should probably reduce their exposure to Big Tech in general, and how U.S. investors - whom he dubbed as being too "myopic" - should seek value in some overseas markets.