LCD and Viewfinder
Canon S100 has a Fixed Type 3" LCD screen with a resolution of 461k dots. Both the screen size and the screen resolution is up to the standards of this class.
S100 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 Nikon Coolpix P7800 (Compare) or Fujifilm X30 (Compare). If the price is not an issue, take a look at our Top Rated Cameras with Viewfinders.
Max Shutter speed
Canon S100 can shoot continuously at max speed of 2 fps
and has max shutter speed of 1/2000 sec
Unfortunately S100 doesn't have an external flash shoe so you are limited with the built-in flash.
Canon S100 features a Contrast Detection autofocusing system. The AF system has 9 points to choose from. Canon S100 also features Face detection AF
where it intelligently detects the faces in the frame and locks the focus automatically.
With Canon S100, you can record your videos at a highest resolution of 1920 x 1080 at 24 fps and save in H.264 and Motion JPEG formats. Full HD resolution of Canon S100 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
S100 also a high speed mode where it captures videos at 240 fps for ultra slow motion videos. S100 has a built-in Stereo microphone but no speaker.
Canon S100 doesn't have any connections for external microphones and headphones. If you need a Compact camera with external microphone connectivity, consider Nikon Coolpix P7800 or Fujifilm X30 in a similar price range.
Connectivity and Storage
You can connect S100 to compatible devices via its HDMI port or USB 2.0 (480 Mbit/sec) port.
Canon S100 is powered by battery which provides a shooting life of 200 according to CIPA standards.
Considering that the average battery life of Compact type cameras is 255 shots, Canon S100 has a short battery life for its class so we strongly recommend S100 owners to buy some extra batteries.
Battery Life Comparison in Small Sensor Compact Cameras
Fujifilm X30 with its 470shots is the model with longest battery life among Small Sensor Compact cameras. Check the comparison of Canon S100 vs Fujifilm X30 or take a look at Longest Battery Life Compact cameras list.