4G (LTE) and 5G are generations of mobile network from your carrier. 5G can be faster and handle more people at once, but coverage varies. Wi-Fi calling lets your phone make normal calls and texts over Wi-Fi when the cell signal is weak.
What the letters mean
- 4G / LTE: the network most phones used through the 2010s. Still fine for calls, maps, video and most apps.
- 5G: the newer network. Depending on where you are, it can be a little faster than 4G or a lot faster. Carriers use labels like 5G, 5G+ or 5G UW for their faster versions.
- Older 3G networks in the U.S. were shut down in 2022, so very old phones that only support 3G no longer work.
Wi-Fi calling
If your basement, office or rural home has poor cell signal but good Wi-Fi, Wi-Fi calling sends your regular phone calls and texts over the internet instead. People call your normal number as usual. Most major carriers support it at no extra charge; you usually turn it on once in your phone’s settings (search Settings for “Wi-Fi Calling”).
What it means for you
You don’t need a 5G phone for calls, texts or everyday apps. If you’re buying a new phone, it will almost certainly support 5G anyway. If calls drop at home, try Wi-Fi calling before switching carriers.
Quick tips
- Turn on Wi-Fi calling if you have weak signal indoors.
- Your phone switches between 4G and 5G automatically; you don’t need to choose.
- Video on mobile data uses up data plans quickly. Use Wi-Fi at home.
- Check your carrier’s coverage map for your area before switching plans.
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