Depending on the accessories you purchase with the N7 it can be twice the cost. You can't mirror an iPhone with the Seicane and even though they say it is plug and play with DSP, my experience is it is not. N7 doesn't have the 9" screen option if that matters to you. I don't know what other features are on the N7 that are important to you that are not on Seicane. Perhaps with all considered the N7 is a better value than the Seicane for you. I would do a do a feature/benefit comparison. I would put a value of at least $100 for the US distributor for Dynavin. Seicane sales and tech support was non existent in my experience. English was clearly short of a second language, responses I got had nothing to do with the question I asked if I could get one at all. No matter what I asked them they came back with asking to send them a picture of what I bought even though I included the model number in every email. Everything went through sales. No direct communication with tech. Great benefit to be able to call US dist.

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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas