No. Nokia 7 Plus does not have the FM radio.
Nokia 7 Plus has an ambient light sensor, proximity sensor, accelerometer, e-compass, gyroscope, fingerprint sensor and hall sensor.
No. Nokia 7 Plus does not have the front camera flash. But the display of the phone works as a flashlight in low-light conditions.
Yes, Nokia 7 Plus does have the headphone jack, which is located on the top panel of the phone.
Great battery life, immersive display, solid design, and software at its purest, that's the Nokia 7 Plus for you.