What a hotspot is and why you'd use it
A mobile hotspot is a feature that turns your phone into a wireless router, letting other devices connect to the internet through your phone's cellular data. When you enable hotspot mode, your phone broadcasts a Wi-Fi network that tablets, laptops, and other phones can join — just like connecting to Wi-Fi at a coffee shop, except the signal comes from your own device.
You use this when you need internet on a device that doesn't have its own cellular plan, or when you're somewhere without regular Wi-Fi. A laptop in a car, a tablet at a doctor's office, or a friend's phone on a road trip can all connect to your hotspot. The data comes from your phone's plan, so you're using your monthly data allowance for all connected devices combined.
Every phone has this feature built in — it's called a hotspot on iPhones and Android, though some carriers label it "tethering" or "personal hotspot" in their documentation. The steps to turn it on and connect are nearly identical across devices, though the menu locations differ slightly.
Key Takeaways
- Your phone's hotspot broadcasts a Wi-Fi network that other devices join the same way they join any other Wi-Fi, using a password you set.
- Turning on your hotspot drains your phone's battery faster and uses data from your monthly plan for every device connected.
- On iPhones, hotspot is called "Personal Hotspot" and lives in Settings > Personal Hotspot; on Android, it's usually "Mobile Hotspot" in Settings > Network & Internet.
- You can connect up to five to ten devices at once, depending on your phone model, though performance slows as you add more.
- If a device won't connect, restart both your phone and the device you're trying to connect, then check that you're using the correct password.
Turning on your hotspot on an iPhone
Open Settings on your iPhone and tap Personal Hotspot. You'll see a toggle at the top — tap it to turn the hotspot on. The toggle will turn green and you'll see "Personal Hotspot: On" at the top of the screen.
When you turn it on, your iPhone will show you the Wi-Fi network name (called the SSID) and the password other devices need to join. The network name is usually something like "Marcus's iPhone" by default. You can change both the name and password by tapping Wi-Fi Password in the same menu, though most people leave the default name alone.
Once the hotspot is on, your iPhone will stay in this menu or you can close Settings — the hotspot keeps running. You'll see a blue bar at the very top of your screen showing "Personal Hotspot On" as long as it's active, so you always know when it's broadcasting.
Turning on your hotspot on Android
The exact path depends on your phone's manufacturer, but the general route is Settings > Network & Internet > Hotspot & Tethering or Mobile Hotspot. Tap the toggle next to "Mobile Hotspot" or "Wi-Fi Hotspot" to turn it on.
Once it's on, tap Mobile Hotspot or Hotspot Settings to see the network name and password. Like iPhones, Android phones generate a default name (often "AndroidAP" or your phone model name) and a random password. You can change either one by tapping the relevant field, though the defaults work fine.
Some Android phones show a notification when the hotspot is active; others just show an icon in the status bar at the top. If you're not sure whether it's on, go back to Settings and check — the toggle will be in the "on" position if it's running.
Connecting another device to your hotspot
On the device you want to connect (a laptop, tablet, or another phone), open the Wi-Fi settings and look for your phone's hotspot network name in the list of available networks. It will appear just like any other Wi-Fi network. Tap or click on it.
When you select the network, you'll be asked for a password. Enter the password your phone displayed when you turned on the hotspot. On most devices, you can check a box to remember this network so you don't have to type the password again next time.
Once you enter the password correctly, the device will connect and show a "connected" status next to your hotspot's name. You should see internet access on that device within a few seconds. If the connection fails, the most common cause is typing the password wrong — passwords are case-sensitive, so check capital letters and numbers carefully.
Troubleshooting when a device won't connect
If a device can see your hotspot network but won't connect, or if it connects and then immediately disconnects, restart both your phone and the device you're trying to connect. Turn off your phone completely, wait ten seconds, and turn it back on. Do the same for the other device. Then turn the hotspot back on and try connecting again.
If the device still won't connect, forget the network on the device and reconnect from scratch. On iPhones and Android phones, go to Wi-Fi settings, find your hotspot network, and tap "Forget This Network" or the info icon next to it. Then select the network again and re-enter the password. On Windows laptops, right-click the network name in the Wi-Fi list and choose "Forget". On Macs, hold Option, click the Wi-Fi icon, find your network, and click "Forget".
If you've restarted both devices and re-entered the password and it still won't work, check that your phone's hotspot is actually on — go back to Settings and verify the toggle is in the "on" position. Some phones turn off the hotspot automatically if no devices are connected for a few minutes, so you may need to turn it back on.
Managing battery drain and data usage
Running a hotspot uses significantly more battery than normal phone use because your phone is constantly broadcasting a Wi-Fi signal and managing connections. If you're using a hotspot for more than an hour or two, plug your phone into a charger or use a portable battery pack. Many people keep their phone plugged in whenever they're using the hotspot regularly.
Every device connected to your hotspot uses data from your phone's monthly plan. If you have a 5 GB plan and you're streaming video on a laptop through your hotspot, that video data counts against your 5 GB. Check how much data you have left in your carrier's app or online account before you start heavy use like video streaming or large downloads.
If you want to limit which devices can connect, some phones let you set a maximum number of connections or require approval before a new device joins. On iPhones, you can see which devices are currently connected in the Personal Hotspot menu. On Android, this varies by manufacturer — check your phone's hotspot settings to see what options are available.
When your hotspot isn't showing up or won't turn on
If you can't find the hotspot setting on your phone, it's usually because your carrier hasn't activated the feature on your account. Some carriers charge a small monthly fee for hotspot use, and the feature won't work until it's turned on. Check your carrier's website or call their support line to confirm hotspot is active on your plan.
If the setting exists but the toggle won't turn on, restart your phone completely. If it still won't turn on after a restart, your carrier may have temporarily disabled it — this sometimes happens if you've used a large amount of data or if there's a billing issue. Contact your carrier to check the status of your account.
On rare occasions, a software update can cause hotspot problems. If your phone recently updated and the hotspot stopped working, restart your phone first. If that doesn't fix it, check whether a newer update is available in Settings > General > Software Update (iPhone) or Settings > System > System Update (Android) and install it if one exists.
Frequently Asked Questions
Can I use my hotspot while I'm on a phone call?
Yes, on most modern phones. Your hotspot will keep running while you're on a call, and devices connected to it will stay connected. However, your phone's performance may slow slightly because it's handling both the call and the hotspot at the same time.
How many devices can connect to my hotspot at once?
Most phones support between five and ten simultaneous connections, depending on the model. Older phones may support fewer. Even if your phone technically supports ten devices, performance degrades as you add more — speeds will be noticeably slower with five devices connected than with one.
Does using a hotspot cost extra money?
Hotspot use itself is free — it's a built-in phone feature. However, the data your connected devices use counts against your monthly data plan. Some carriers charge a separate monthly fee to enable hotspot on your account, so check your plan details or contact your carrier if you're unsure.
What's the difference between a hotspot and tethering?
Hotspot and tethering are the same thing — they both mean using your phone's data to connect other devices to the internet. "Hotspot" is the more common term now, while "tethering" is older terminology. Your carrier may use either word in their documentation.
Why is my hotspot so slow?
Hotspot speed depends on your phone's cellular signal strength and how many devices are connected. If you're in an area with weak signal, the hotspot will be slow. If multiple devices are downloading or streaming at once, speeds will be slower than if only one device is using it. Move to an area with better signal or disconnect unused devices to improve speed.