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 0.56x. 95% coverage means that what you see in your viewfinder while shooting will slightly be different from the actual image.
Max Shutter speed
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 it also has a flash shoe to 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. Nikon D3400 also features Face detection AF
where it intelligently detects the faces in the frame and locks the focus automatically.
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 Canon EOS Rebel SL3 (EOS 250D / EOS Kiss X10) in a similar price range.
Connectivity and Storage
Nikon D3400's Bluetooth
connectivity feature comes handy for connecting other devices that supports it. One other feature that we like is the ability to use our smartphone as a remote to control our D3400. You can change camera settings, release shutter, view LCD screen and tranfer files using remote control app.
You can connect D3400 to compatible devices via its HDMI port or USB 2.0 (480 Mbit/sec) port.
Nikon D3400 is powered by battery which provides a shooting life of 1200 according to CIPA standards.
Considering that the average battery life of DSLR type cameras is 911 shots, Nikon D3400 has a good battery life for its class.
Battery Life Comparison in Entry-Level DSLR Cameras
Pentax K-x with its 1900shots is the model with longest battery life among Entry-Level DSLR cameras. Check the comparison of Nikon D3400 vs Pentax K-x or take a look at Longest Battery Life DSLR cameras list.
Nikon D3400 Features Compared to Main Competitors