A city with lines showing the different network connections

A lady enjoying her phone with a SIM card.

An illustration of three squares with different images in them. First are people with headsets, second a phone with a copy cup and note pad next to it, and third a person speaking into a mic.

View of a city sidewalk with colorful line illustrating 5G network.

A city-scape with 5G network connections shown.

Ready to upgrade your iPhone to a brand-new device? Learn about the T-Mobile iPhone upgrade program and find the best plan and phone for you.

Find the Best iPhone Upgrade Program for You | T-Mobile

Finding the Best iPhone Upgrade Program for You

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Dialed In

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T-Mobile

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James Mathews

Confused about CDMA vs. GSM? Our guide breaks down the basics of phone bands, so you can make an informed decision about mobile devices and service providers.

GSM vs. CDMA: What You Need To Know About Phone Bands | T-Mobile

GSM vs. CDMA: What You Need To Know About Phone Bands 

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Alejandro Diez

Is there really that big of a difference between 4G and 5G technology? The answer is yes! Glimpse into the future of 5G and see what sets it apart from 4G.

5G vs 4G: What’s the Difference? | T-Mobile

5G vs 4G

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Khalila Fooks

From buzz word to something tangible, 5G’s advantages are starting to transform how we live, work, and play. Let’s unwrap 5G, the next-gen wireless network.

The Benefits of 5G | T-Mobile

5G Benefits

Get the most out of your mobile data plan while traveling with our guide to data roaming on a phone. Learn how to avoid roaming charges while staying connected.

What is Data Roaming? A Guide to Managing Cellular Data Usage | T-Mobile

What Is Data Roaming? A Guide to Managing Cellular Data Usage 

Many types of SIM cards exist, from eSIMs, to soft SIMs and beyond. But what is a SIM card exactly and how does it work to keep you connected?

What Is A Sim Card? | T-Mobile

What Is A SIM Card?  

Sure, you’re a streaming aficionado, but have you ever wondered about the technology behind it? We’ll dive into the past, present and future of streaming.

What Is Streaming and How Does It Work? | T-Mobile

What Is Streaming? 

What Is Streaming & How Does It Work? | T-Mobile

What is an IMEI number? Just like your car has a VIN, your mobile device has an IMEI number. See how to find your IMEI, what it's used for and why it’s important.

What Is An IMEI Number And How to Find it | T-Mobile

What Is An IMEI Number &#038; How Can I Find Mine? 

Demystify the wireless universe and get insights into the latest advancements and trends. From 5G connectivity to Wi-Fi wonders, we break it down so you can stay ahead of the curve. Discover the future of wireless and learn how it impacts your daily life.

Wireless 101

Learn more about 5g wireless technology, your phone capabilities, new need and interesting ways to optimize and customize your wireless device experience.