internet speed on phone is terrible but everything else is good

Here a few tips that might help.

If your iPhone internet speed is slow despite other functions working well, try restarting your iPhone and Wi-Fi router, forgetting and reconnecting to your Wi-Fi network, or checking for iOS updates. 

Here's a more detailed breakdown of troubleshooting steps:

1. Restart Your iPhone and Router:

• A simple restart can resolve temporary glitches that might be causing the slowdown. 
• Restart your Wi-Fi router as well, as a weak signal or network congestion could be the culprit. 

2. Check Your Wi-Fi Connection:

• Forget and Reconnect: Go to Settings > Wi-Fi, tap the "i" next to your network, and select "Forget This Network". Then, reconnect by re-entering the password. 
• Check Signal Strength: Ensure you're close enough to your router for a strong signal. 
• Other Devices: See if other devices on your network are experiencing the same slow speeds. 

3. Check for iOS Updates:

• Outdated software can sometimes cause connectivity issues.
• Go to Settings > General > Software Update and install any available updates. 

4. Reset Network Settings:

• If the problem persists, consider resetting your network settings.
• Go to Settings > General > Transfer or Reset > Reset > Reset Network Settings. 

5. Check for Background Apps:

• Many apps running in the background can consume data and slow down your internet speed.
• Close unnecessary apps by swiping up from the bottom of the screen and swiping left or right to close apps. 

6. Contact Your ISP or Carrier:

• If you've tried all the above steps and the problem continues, contact your internet service provider (ISP) or mobile carrier.
• They can check for any issues on their end, such as network congestion or outages. 

7. Other Potential Issues:

• Low Storage Space: Insufficient storage can slow down your iPhone's performance, including internet speed.
• Low Power Mode: Turning off Low Power Mode might help, as it can restrict background activity.
• Battery Health: A degraded battery can also impact performance. 

Are you using cellular or WiFi for accessing internet? Which is slow or are both slow? iOS 18.4 was released yesterday, have you updated your iPhone? What model iPhone is it?

Have you talked to your service provider(s) about the issue? Did they have you perform a speed test? If so, what were the results?

OK, so I’m assuming it’s just WiFi you’re referring to, correct? How long have you had the issue? Have you contacted your internet service provider’s support team? If so, what did they do?