Here's why it may make sense to upgrade to iPhone 12 for 5G capabilities—And why not

Apple unveiled the iPhone 12 — the company's first 5G iPhone — and declared that the era of 5G has begun. Does that mean it's time for everyone to upgrade? CNBC's Jon Fort joins "Squawk Box" to break down both sides of the issue.
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Thu, Oct 15 20207:39 AM EDT