How to Use One WhatsApp Account on Two Phones (Companion Mode Guide 2026)

Quick Answer: How do you use WhatsApp on two phones?

Install WhatsApp on your second phone, tap Link to existing account instead of entering your number, then on your main phone go to Settings > Linked devices > Link a device and scan the QR code. Your chats will sync, and both phones can send and receive messages with the same number. This feature is called Companion Mode.

Carrying a work phone and a personal phone? Or maybe you want your spouse, shop helper or a backup phone to see the same chats. Earlier, WhatsApp only worked on one phone at a time. If you logged in on a second phone, the first one was logged out.

That has changed. In this guide you will learn how to use WhatsApp on two phones step by step on Android and iPhone, how to link without a QR code, what the limits are, and how to fix common problems.

Key Takeaways

• One WhatsApp account can run on your main phone plus up to 4 linked devices.
• You do not need a SIM card in the second phone. Wi-Fi or mobile data is enough.
• You can link with a QR code or with an 8-character code sent to your main phone.
• If your main phone stays inactive for about 14 days, linked devices are logged out.
• Chat backups only run on the main phone.

What Is WhatsApp Companion Mode?

Companion Mode is WhatsApp’s official way to use one WhatsApp account on two phones or more. WhatsApp announced it in April 2023. Before that, you could only link a web browser, a computer or a tablet.

Your first phone (the one with the SIM and registered number) is the main phone. Every other phone you connect is a linked device, also called a companion phone.

Each linked phone connects to WhatsApp on its own. So messages keep arriving even if your main phone’s battery dies or its internet is off. Your personal chats and calls stay end-to-end encrypted on every device.

Before You Start: What You Need

• Your main phone with WhatsApp already set up and working.
• A second phone (Android or iPhone) with internet.
• The latest version of WhatsApp on both phones.
• Both phones close to each other for scanning the QR code.

Important: If WhatsApp is already registered on the second phone with another number, that account will be logged out. Back up its chats first.

How to Use WhatsApp on Two Phones With the Same Number (Android)

1. On the second Android phone, install WhatsApp Messenger from the Google Play Store.
2. Open the app and tap Agree and continue.
3. On the phone number screen, do not type your number. Tap the three-dot menu (top right) and choose Link to existing account. A QR code will appear.
4. On your main phone, open WhatsApp and go to Settings > Linked devices > Link a device.
5. Unlock with your fingerprint, face or PIN if asked.
6. Point the main phone’s camera at the QR code on the second phone.
7. Wait a few seconds while your recent chats sync. Done.

How to Link WhatsApp to Another Phone (iPhone)

1. On the second iPhone, install WhatsApp from the App Store.
2. Open it and tap Agree and continue.
3. On the phone number screen, tap Link to existing account. A QR code will show.
4. On your main phone, open Settings > Linked devices > Link a device.
5. Confirm with Face ID, Touch ID or passcode, then scan the QR code.
6. Keep both phones open until syncing finishes.

It does not matter if your phones are different. You can link an iPhone to an Android account and the other way around.

How to Use WhatsApp on Two Phones Without QR Code

Camera broken or QR code not scanning? You can link with a code instead.

1. On the second phone, open the Link to existing account screen.
2. Tap Link with phone number instead and enter your WhatsApp number.
3. An 8-character code will appear on the second phone.
4. On your main phone, go to Settings > Linked devices > Link a device, then tap Link with phone number instead.
5. Type the code exactly as shown. The phones will link.

Note: If you don’t see this option, update WhatsApp on both phones. Never share this code with anyone who asks for it on a call or message. Scammers use it to take over accounts.

How Many Devices Can I Link to WhatsApp?

You can use your main phone plus up to 4 linked devices at the same time. These can be any mix of phones, tablets, computers and WhatsApp Web. If you want to add a fifth, log out one of the old devices first.

Can I Use WhatsApp Business on Two Phones?

Yes. The WhatsApp Business app also supports Companion Mode, and the steps are the same. This is very useful for small businesses. For example, a shop owner can keep the main phone at the counter while a staff member replies to customers from a second phone using the same business number.

If your team is large and needs a shared inbox or automation, you would need the WhatsApp Business API through an official provider. For most small shops, Companion Mode is enough and free.

Companion Mode vs WhatsApp Web vs Dual Apps

Limitations of Using WhatsApp on Two Phones

• Main phone must stay active: if it is not used for about 14 days, all linked devices log out.
• Old chats may not appear: mostly recent history syncs to a new linked phone.
• No backup on linked phones: Google Drive or iCloud backup only works on the main phone.
• Some features stay on the main phone: things like live location sharing and broadcast lists may not work on a linked phone. WhatsApp keeps adding features, so check your app version.
• Separate notifications: you must turn on notifications on each phone yourself.

WhatsApp “Link to Existing Account” Option Not Showing? Try These Fixes

• Update the app: old versions don’t have this option. Update from the Play Store or App Store.
• Look in the right place: on Android it is inside the three-dot menu on the phone number screen, not on the welcome screen.
• Reinstall WhatsApp: if the second phone was already registered, uninstall, reinstall and open it fresh.
• QR code not scanning: raise screen brightness, wipe the camera lens, or use the phone number code method.
• Messages not arriving: turn off battery optimization for WhatsApp, allow notifications and background data, and make sure your main phone has been opened in the last few days.

How to Unlink a Device From WhatsApp

1. On your main phone, open Settings > Linked devices.
2. Tap the phone or device you want to remove.
3. Tap Log out and confirm.

Security tip: Check this list once a month. If you see a device you don’t recognize, log it out right away and turn on Two-step verification in Settings > Account. If you share login details with family or a team, a good password manager for shared logins also helps.

Tips for Pakistani Users

• Your SIM (Jazz, Zong, Telenor or Ufone) only needs to be in the main phone. The second phone works on Wi-Fi or any data package.
• Small businesses can let staff handle customer chats on a second phone without sharing the SIM.
• If you travel abroad and keep your Pakistani SIM at home, open the main phone at least once every two weeks so linked phones stay logged in.

Frequently Asked Questions

Can I use WhatsApp on two phones with different numbers?

Not with Companion Mode, because every linked phone uses the same number. To use two different numbers, use the multiple accounts option on Android, install WhatsApp Business next to normal WhatsApp, or use your phone’s Dual Apps feature.

Do both phones need internet?

Each phone needs its own internet to send and receive messages. But the main phone does not need to be online at the same time as the linked phone.

Will I get messages and calls on both phones?

Yes. Once linked, messages, media and calls arrive on both phones, and you can reply from either one.

Is it safe to use WhatsApp on two phones?

Yes. Personal messages and calls stay end-to-end encrypted on every linked device. Just keep an eye on your Linked devices list and enable two-step verification.

Does the second phone need a SIM card?

No. A SIM is only needed in the main phone. The linked phone only needs Wi-Fi or mobile data.

What happens if I lose my main phone?

Linked phones keep working for a while. Get a new SIM with the same number, register WhatsApp on a new main phone, and log out any devices you no longer use.

How do I log out WhatsApp from the second phone?

On your main phone, go to Settings > Linked devices, tap the second phone and choose Log out. You can also log out from the linked phone’s own settings.

Conclusion

Now you know how to use WhatsApp on two phones with one number. Install WhatsApp on the second phone, choose Link to existing account, and scan the QR code or use the phone number code from your main phone. Keep the main phone active, turn on notifications on both phones, and check your linked devices from time to time for safety.

Found this helpful? You may also like our guides on saving LinkedIn videos to your gallery and recovering deleted Instagram posts and reels.