I only shoot 1080P 10bit with my cam but I am thinking about buying the 4k upgrade and shooting in 4k. Is the X70 4k in 10 bit? Seems like I remember it wasn't, but now I am starting to doubt myself.

Can the X70 shoot broadcast-acceptable 4k, or just stick to 1080?

Thanks

That'a correct. 4K will be 4:2:0 in 8-bit at a ridiculous 60Mbps. Until the fix that (they said 1st quarter this year, but...well, it's Sony) and give you a 100Mbps option, I would wait.

im leaning to the z150. saw it at nab. coming from an ex1r, im wanting that those focus, zoom, iris rings which the 150 has.
very nice for only 3200.00.
too bad 4k is 30p