Just to be clear, the 2CE56D1T model that you mention is a HD over co-ax / TurboCCTV camera model (not an IP camera).
Presumably a Pro model.
HiWatch by HikVision is their new range for consumers - recently introduced.
We fell out with HikVision over their change of strategy, whereby they will no longer allow end-users to purchase Pro models: HikVision End of Supply 4-8-17
We've not yet tested any HiWatch cameras.
So that's about all the comment I can reasonably make at this time.
Sorry I can't be more helpful.