Here you can check your iPhone imei or serial number on model, size, color, serial number, coverage status, find my iPhone status, simlock and another information.Also you can check any Apple device with sn Macbook or iMac or iPad or AirPods any device.
Go to Settings > General > About and look for your device's IMEI
Recover Your Apple ID - Apple.
Before trying anything else, you can try simply dialing *#06# on your iPhone (or any mobile phone), this should retrieve the IMEI number. Give it a moment and the IMEI will appear on the screen – this little number dial trick actually works to retrieve the IMEI on other cell phones too, not just the iPhone.
The iPhone 5/5c/5s/6/6+ and the original iPhone have the IMEI number engraved on the back of the phone, near the bottom.
For find imie, you need remove sim card tray from device, and then you can find imei on it. (not on all models you can find imei via sim tray)
09.08.2020 New information added If you check your device via serial number.
Now you can know if your phone:
Replacement, Demo device or Refurbished. Also added for some device country of purchase.