LCD and Viewfinder
Nikon D3400 has a Fixed Type 3″ LCD screen with a resolution of 921k dots. Both the screen size and the screen resolution is up to the standards of this class.
D3400 has a built-in Optical (pentamirror) viewfinder.
The viewfinder has a coverage of 95% and a magnification ratio of 0.85×
Nikon D3400 can shoot continuously at max speed of 5.0 fps and has max shutter speed of 1/4000 sec . D3400 has a built-in flash, and you can also mount your external flashes too.
Nikon D3400 features both Contrast Detection and Phase Detection autofocus (AF) systems which ensures speed and accuracy of focusing in most situations. The AF system has 11 points to choose from.
With Nikon D3400, you can record your videos at a highest resolution of 1920 x 1080 at 60,50,30,25,24 fps and save in MPEG-4 and H.264 formats. Full HD resolution of Nikon D3400 will be adequate in most of the situations. But if you are after the highest resolution videos available, see our list of Top Cameras with 4K (Ultra-HD) Video.It has a Mono speaker but no built-in microphone.
Nikon D3400 doesn't have any connections for external microphones and headphones. If you need a DSLR camera with external microphone connectivity, consider Pentax K-S2 or Pentax K-70 in a similar price range.
Connectivity and Storage
You can connect your camera to other devices through HDMI port or via USB 2.0 (480 Mbit/sec) port.
Nikon D3400 is powered by EN-EL14a battery which provides a shooting life of 1200 according to CIPA standards.
Considering that the average battery life of DSLR type cameras is 880 shots, Nikon D3400 has a good battery life for its class.
Battery Life Comparison in Entry Level DSLR Cameras
Current Lowest price for Nikon D3400 is $496.95