Nokia 4.2 is equipped with a 5.71-inch HD+ display with a screen resolution of 1520 x 720 pixels and 270ppi pixel density.
The phone is powered by a Qualcomm Snapdragon 439 processor coupled with 3GB of RAM and 32GB of internal storage.
The memory can be further expanded with the help of a dedicated microSD card slot.
For selfies, it is loaded with an 8-megapixel sensor with f/2.0 aperture.
Nokia 4.2 is backed by a dual-camera setup, which comes with a combination of 13-megapixel primary lens with f/2.2 aperture coupled with a 2-megapixel depth sensor with f/2.2 aperture.
The smartphone runs on Android 9.0 Pie and it comes with Android One branding.
The company has also added a Google Assistant button, which is situated at the left side of the device.
Connectivity options include G VoLTE, WiFi 802.11 b/g/n, GPS, GLONASS, FM Radio,NFC, Google Assistant button and micro USB port.
The phone measures 148.95 x 71.30 x 8.39 mm and weighs 161 grams.
The major highlight of the smartphone is the compact design along with a glossy finish at the back panel.
The company has also added a Google Assistant button, which is situated at the left side of the device.The phone is juiced up by a 3000mAh battery, which the brand claims give a standby time of 25 days, talk time of up to 18 hours and local music playback of up to 100 hours.