Differences between the Olympus OM-D E-M5 and OM-D E-M1

Unlike the E-M5, the E-M1 now features Wi-fi built-in to make it more convenient to use. Casting our mind back to when we reviewed the E-M5, it had to be used with the Olympus PENPAL PP-1 communicator (£80) to transmit images wirelessly to smart phones. This not only turned out to be an inconvenience for the way it added to the cost, it prevent the use of external flashguns being attached at the same time.

To send images to a smartphone on the OM-D E-M5 the PENPAL PP-1 (£80) is required. 

The E-M1 also permits the use of a smartphone to remotely control the camera. It's possible to mirror the Live View LCD on your phone's touch screen, then focus and release the shutter remotely via Wi-fi. Even the unique Live Bulb effect can be previewed on smartphones, with Live Bulb updating the Live View image at pre-set intervals during bulb exposures.

The Olympus OM-D E-M1 features built-in Wi-fi - an improvement on the OM-D E-M5.