[crikey criken]

The devs made a point to differentiate the two of them via eye color and facial structure, and it looks like height is part of that too.

We don’t have a good side by side of the two, but we get a good idea by taking a look at each of them next to Amanda:

Here Amanda is next to RK900.  She comes about midway up to his chin.

Those of you shouting “but she’s standing slightly behind him there!”  Well, take a look at this one where she’s actually in front of him and still only reaches the top of his chin.

Now let’s see her next to Connor. She comes midway to his nose.

So yes, RK900 appears to be taller than Connor.  If we use Amanda as a basis, their height difference is something like this:

…that’s quite a difference! 

connor: i think so lieutenant.

hank: where do you think they go when they die?

connor: (visualizes, a single tear falling from his eye)