The E8000 is also less compatible when connecting wirelessly to other devices (like Garmins) - for some reason the E8000 display uses different Bluetooth and ANT formats than the other STEPS displays.
[ The EM800 display is the EP8 version of the E8000 and uses the same wireless connectivity as the E7000 - but has different cable connections. ]
[ @jimbob the E8000 display is not compatible with the EP8 motor. ]