LCD and Viewfinder
Pentax WG-3 has a Fixed Type 3" LCD screen with a resolution of 460k dots. Both the screen size and the screen resolution is up to the standards of this class.
WG-3 doesn't have a viewfinder and no option for external viewfinder. Lack of a viewfinder can be problematic especially under strong light where visibility of LCD screens goes down dramatically. If you need a Compact camera with a built-in viewfinder in a similar price range, consider Panasonic Lumix DMC-ZS70 (Lumix DC-TZ90) (Compare) or Panasonic Lumix DC-ZS80 (Lumix DC-TZ95) (Compare). If the price is not an issue, take a look at our Top Rated Cameras with Viewfinders.
Max Shutter speed
Pentax WG-3 can shoot continuously at max speed of 10 fps
and has max shutter speed of 1/4000 sec
Unfortunately WG-3 doesn't have an external flash shoe so you are limited with the built-in flash.
Pentax WG-3 features a Contrast Detection autofocusing system. The AF system has 9 points to choose from. Pentax WG-3 also features Face detection AF
where it intelligently detects the faces in the frame and locks the focus automatically.
With Pentax WG-3, you can record your videos at a highest resolution of 1920 x 1080 at 30 fps and save in MPEG-4 and H.264 formats. Full HD resolution of Pentax WG-3 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
WG-3 has a built-in Mono microphone and a Stereo speaker.
Pentax WG-3 doesn't have any connections for external microphones and headphones. If you need a Compact camera with external microphone connectivity, consider Nikon Coolpix P7000 or Olympus Stylus SH-1 in a similar price range.
Connectivity and Storage
You can connect WG-3 to compatible devices via its HDMI port or USB 2.0 (480 Mbit/sec) port.
Pentax WG-3 is powered by battery which provides a shooting life of 240 according to CIPA standards.
Considering that the average battery life of Compact type cameras is 255 shots, its battery life is about average in its class but it would still be wise to invest in some spare batteries for long photo trips.
Battery Life Comparison in Waterproof Cameras
Olympus TG-4 with its 380shots is the model with longest battery life among Waterproof cameras. Check the comparison of Pentax WG-3 vs Olympus TG-4 or take a look at Longest Battery Life Compact cameras list.
Pentax WG-3 Features Compared to Main Competitors