The FCC certification platform recently has three Nokia mobile phones, the models are TA-1333, TA-1337 and TA-1340. Some key details of these phones have been listed through the FCC list.
The Nokia TA-1333 FCC list shows that it is a reasonably priced LTE phone and supports 2.4GHz Wi-Fi connection.
The capacity of the device is 4,000mAh. The schematic on the back of the phone shows that it has a circular camera module. The Nokia TA-1337 FCC list shows that it is an LTE smartphone with a 4,000mAh battery.

It supports Bluetooth 4.2 and 2.4GHz Wi-Fi bands. According to the FCC list of Nokia TA-1340, its design and structure are the same as TA-1333 mobile phone. The only difference is that TA-1333 supports dual SIM cards, while TA-1340 supports dual SIM cards and single SIM cards.
The Nokia TA-1340 user manual reveals its front and back design. As you can see from the image in its user manual, it has a punch-hole display and a circular camera module with four lenses on the back.

The LED flash unit is located on the left side of the camera housing. A fingerprint scanner is provided under the camera module.
There is a microphone, a USB-C port and a speaker on the bottom edge of the Nokia TA-1340 phone.
There is a power/lock button on the right edge of the device. The SIM/memory card slot and Google Assistant hardware key are located on its left spine. Nokia 3.4, which debuted in October this year, has a similar front and rear design.

However, one obvious difference of Nokia 3.4 is that its circular camera module has three cameras and an LED flash. Therefore, it seems that the position of Nokia TA-1340 may be higher than Nokia 3.4. This indicates that TA-1340 may be a Nokia 5.4 mobile phone.
Past reports show that Nokia 5.4 is equipped with a 6.4-inch display, 4 GB RAM and 64 GB / 128 GB storage space and other specifications. It is expected to appear in blue and purple.