Time may be now to upgrade phones with 5G rollout

Time may be now to upgrade phones with 5G rollout

Major cell phone carriers are boasting higher speeds, thanks in part to the new 5G rollout.

But they're also set to phase out 3G networks this year, meaning many older cell phones will become obsolete.

Isabel Rosales reports on the gadgets that may soon no longer work -- from your home security system, and cars, to medical devices.