You can share one phone's mobile data with another phone by turning on its hotspot feature
Most phones have a built-in hotspot function that broadcasts your mobile data connection as a wireless network. The other phone connects to it the same way it would connect to any Wi-Fi network. The phone providing the hotspot uses its cellular data plan, so the data counts against that plan's monthly limit — not the connecting phone's plan.
The exact steps and feature names vary by phone type and carrier, but the process is the same: enable hotspot on the source phone, find its network name in the connecting phone's Wi-Fi list, enter the password, and connect. Most phones can share with multiple devices at once, though doing so slows the connection for everyone.
Key Takeaways
- The phone providing hotspot must have an active cellular data plan, and all data used by connected devices counts against that plan's monthly limit.
- On Android, hotspot is usually called "Mobile Hotspot" or "Tethering" and lives in Settings > Network & Internet or Connections; on iPhone, it is called "Personal Hotspot" in Settings > General > Personal Hotspot.
- The connecting phone sees the hotspot as a regular Wi-Fi network and connects using the password the source phone displays or generates.
- Hotspot drains the source phone's battery faster than normal use, so plug it in if you plan to share for more than an hour.
- Some carriers charge extra for hotspot use or limit how much data you can share; check your plan's terms before relying on it regularly.
How to turn on hotspot on an Android phone
Open Settings and look for a section called "Network & Internet," "Connections," or "Wireless & Networks" — the exact name depends on your phone's manufacturer and Android version. Inside that section, find "Mobile Hotspot," "Tethering," "Portable Hotspot," or "Hotspot." Tap it to open the hotspot settings.
You will see a toggle switch to turn hotspot on or off. Before you flip it, look for a field labeled "Network Name," "SSID," or "Hotspot Name" — this is the name other phones will see when they search for Wi-Fi networks. You can leave it as the default (usually your phone's name) or change it to something easier to recognize. Below that is a "Password" field; the phone generates one automatically, but you can change it to something you will remember.
Once you have set the name and password, toggle hotspot on. Your phone will now broadcast this network. The status bar at the top of your screen usually shows an icon indicating hotspot is active. Leave this screen open or go back to your home screen — the hotspot stays on either way until you toggle it off.
How to turn on hotspot on an iPhone
Open Settings and tap "General," then scroll down and tap "Personal Hotspot." If you do not see this option, your carrier may not support it or your plan may not include it — contact your carrier to confirm. Once you open Personal Hotspot, you will see a toggle switch at the top; flip it to turn hotspot on.
Unlike Android, iPhone generates a password automatically and does not let you change the network name easily — it uses your phone's name by default. The password appears on the Personal Hotspot screen and changes each time you turn hotspot on. Write it down or memorize it before the other phone tries to connect, because you will need to enter it exactly.
When hotspot is on, a blue bar appears at the top of your iPhone screen showing "Personal Hotspot On" and how many devices are connected. You can close the Settings app and use your phone normally; the hotspot stays active in the background.
Connecting another phone to the hotspot
On the phone that will receive the internet connection, open Settings and go to Wi-Fi. Wait a few seconds for the list of available networks to load. You should see the hotspot network name (the one you set or your source phone's default name) appear in the list. Tap it.
A password prompt will appear. Enter the password exactly as it was shown on the source phone — passwords are case-sensitive, so uppercase and lowercase letters matter. Once you enter the correct password, the phone connects and should show a checkmark next to the network name. Open a web browser or app that uses data to confirm the connection is working.
If the password does not work, go back to the source phone and check the password field again. Some phones show the password only while the hotspot settings screen is open. If you still cannot connect, toggle hotspot off and back on on the source phone, then try again.
Data usage and plan limits
Every byte of data used by a connected phone counts against the source phone's data plan, not the connecting phone's plan. If your plan includes 10 gigabytes per month and you share 2 gigabytes with another phone, you have 8 gigabytes left. This is true even if the connecting phone has its own separate plan with a different carrier.
Some carriers charge extra for hotspot use or cap how much data you can share per month. Verizon, for example, includes hotspot on most plans but limits it to a certain amount per month depending on your plan tier. AT&T and T-Mobile include it on most plans without extra charge, but policies change. Check your carrier's website or call customer service to confirm what your plan allows.
Video streaming, large file downloads, and app updates consume data quickly when shared. If you are sharing hotspot regularly, monitor your data usage in your phone's Settings to avoid overage charges or throttling (when your carrier slows your speed after you hit a limit).
Battery drain and connection stability
Providing hotspot uses significantly more battery than normal phone use because your phone is running its cellular radio at full power and broadcasting a Wi-Fi signal simultaneously. If you plan to share hotspot for more than 30 minutes, plug the source phone into power. Without power, most phones drain their battery in 2 to 4 hours while actively providing hotspot.
The connection speed depends on your cellular signal strength and how many devices are connected. If you are in an area with weak signal, the hotspot connection will be slow. If multiple phones or tablets are connected at once, each device gets a smaller share of the available bandwidth, and everything slows down. For the fastest connection, connect only one device and position the source phone near a window or away from obstacles that block cellular signal.
If the connection drops or becomes unstable, toggle hotspot off and back on on the source phone. If that does not help, restart both phones. Persistent problems may indicate a carrier issue or a problem with your plan — contact your carrier if hotspot stops working after it was working before.
Alternatives when hotspot is not available
If your carrier does not support hotspot or your plan does not include it, you have a few other options. Some carriers offer it as a paid add-on; contact your carrier to ask about the cost and whether it is worth it for your use case. A few carriers include it only on certain plan tiers, so upgrading your plan might unlock it.
If you need to share internet regularly and hotspot is not an option, a portable Wi-Fi device (sometimes called a mobile hotspot device or Mi-Fi) is a separate gadget that connects to cellular data and broadcasts Wi-Fi. These devices are sold by carriers and third-party retailers, usually for $50 to $200 upfront plus a monthly data plan. They are bulkier than using your phone, but they do not drain your phone's battery and some plans are cheaper than adding hotspot to a phone plan.
For one-time or occasional use, finding a public Wi-Fi network (at a coffee shop, library, or restaurant) is free and does not use your cellular data. Public Wi-Fi is less secure than hotspot, but it works when you do not have a hotspot-capable phone or plan.
Frequently Asked Questions
Does using hotspot cost extra money?
Most carriers include hotspot at no extra charge on standard plans, but some charge an add-on fee or limit how much data you can share. Check your carrier's website or call them to confirm whether your specific plan includes hotspot and whether there are any limits or extra costs.
Can I connect more than one phone to a single hotspot?
Yes, most phones can share hotspot with multiple devices at once — typically up to 5 to 10 devices depending on your phone model. However, the more devices connected, the slower the connection for everyone. Connecting two phones works fine; connecting five or more will noticeably slow things down.
What if I forget the hotspot password?
Go back to the hotspot settings on the source phone and look at the password field — it will show the current password. On iPhone, you may need to toggle Personal Hotspot off and back on to see the password again. On Android, the password usually stays visible in the Mobile Hotspot settings.
Does the source phone need to be unlocked for hotspot to work?
No, the hotspot continues to work even if the source phone is locked or the screen is off. However, some phones may turn off hotspot automatically if the screen is off for a long time to save battery. If the connection drops, unlock the source phone and check whether hotspot is still enabled in Settings.
Can I use hotspot if I do not have a data plan?
No, the source phone must have an active cellular data plan for hotspot to work. If you have a phone-only plan with no data, hotspot will not function. You would need to add a data plan to your account first.