First of all, not every smartphone has NFC although most modern devices do.
NFC stands for Near Field Communication.
If you are not sure if your smartphone is NFC-enabled or not, this list may help you: https://www.unitag.io/nfc/is-my-phone-compatible-with-nfc
Depending on which brand of smartphone and which model you are using, the NFC antenna may be located somewhere else on the device.
Below you will find links to the manufacturers’ homepages with more helpful information. If you have any questions with regard to the NFC technology, please get in touch with the manufacturer of your phone.
The link below will guide you to the Samsungs homepage where you can find the location of your NFC detection area with the help of pictures: https://www.samsung.com/hk_en/nfc-support/#devicelist
This link guides you to the different user guides for your iPhone in order to find the NFC antenna on your device: https://support.apple.com/
Please keep in mind that you need at least iOS 13.0 in order to be able to use the NFC antenna.
Please visit the support page, select your device model and you will find a sketch showing where to find the NFC antenna on your model in the start guide that can be downloaded: https://consumer.huawei.com/en/support/product/?tag=smart-phone&u=u
- Sony Xperia:
If you have a Sony Xperia device you can use the following link https://www.sony.com/electronics/support/mobile-phones-tablets-mobile-phones and access the user guide for your device in order to find where the NFC antenna is located.
- Google Pixel:
In order to find the NFC detection area for your Google Pixel phone you can follow the link below. You will find the location of the NFC antenna shown in sketches: https://support.google.com/pixelphone/answer/7157629
As the location of the NFC antenna may vary, please choose your model in the support section on Motorola’s website to get to these product specifications:
On https://www.lg.com/hk_en/mobile you can choose your smartphone model in the list. In the specifications you find sketches explaining the NFC position.
To find the location of the NFC antenna of your HTC smartphone please visit the following page https://www.htc.com/support/ and can choose the model you are using and find the valid NFC information for your device.
Please check the manual for your model to see the exact location of your device: https://www.nokia.com/phones.