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Cellular signal boosters use big antennas to improve coverage in your home or car. These are the top signal boosters for apartments, houses, and vehicles. I’m one of PCMag’s mobile analysts.

Booster manufacturers have to use various ... have a weak signal—not when there's none at all. Whereas your phone shows bars, wireless industry folks measure signal in -dBm.

Power banks are great for topping up your phone on the go. However, if your spare battery does not have wireless charging, you need to bring around an extra cable, which can be annoying and ...