The black OM-D E-M10 Mark IV meshes many of Olympus's flagship features and technologies with the compact and highly portable E-M10 design. The sensor also employs a 121-point contrast-detection AF system, which uses subject detection algorithms from the E-M1-series, for fast, accurate, and intelligent focusing performance. For eye-level viewing, there is a 2.36m-dot OLED electronic viewfinder. Also, built-in Wi-Fi and Bluetooth permit connecting the camera to a smartphone or tablet for direct wireless sharing of images or for the remote camera from the mobile device. Ideal for photographing moving subjects, too, the sensor and processor combination enables full-resolution continuous shooting up to 8.7 fps. Furthermore, this advanced image stabilization system works across five axes to compensate for vertical angle rotation, horizontal angle rotation, horizontal shift, vertical shift, and rolling camera shake movement.  Suiting working with moving subjects, continuous autofocus benefits from the same subject-detection algorithm used in the sports-optimized E-M1X and, benefitting portraiture, the same face- and eye-detection functions as the E-M1 Mark III also make it possible to accurately focus on the profile, lower face, or a partially hidden face.

The high-resolution 2.36m-dot electronic viewfinder is available for eye-level monitoring, and it offers a 0.67x maximum magnification for clear, distortion-free viewing. Built-in Wi-Fi and Bluetooth permit wireless image sharing and remote camera control from a linked smartphone or tablet when using the dedicated O.I.Share app for iOS and Android. This mode works to only record newly detected light sources over time and allows you to watch as an image develops, making it ideally suited for photographing star trails or other moving light sources. Live Bulb and Live Time settings can be used to produce creative long exposure imagery. Live Bulb lets you hold the shutter open for up to one minute and Live Time lets you press the shutter button once to open the shutter and then press again within a minute to end the exposure.