Why for leisure? If you want to get rid of 200 new smartphone models a year and other irrational consumables, you'd need to rethink the whole economy anyway, so that it is no more rewarding to rely on unsustainable consumption.
This may sound like utopia, but is not necessarily a bad idea.
So why not limit business trips instead of personal ones? The CO2 budget which is now wasted by producing planned obsolescent gadgets could partly be used by individuals to get more mindful by traveling, by getting in touch with different cultures, by having a better meaning of life than working their ass off to buy such gadgets. For a little more than four iPhones you can already have a flight from San Francisco to Las Vegas and back [0][1].
If you can't think of this utopia, you're mentally stuck to the growth based capitalistic economy we already have. In this case, limiting these resource wasting consumption goods would turn us right into recession, no?
[0]: https://www.cnet.com/news/apple-iphone-x-environmental-repor...
[1]: https://co2.myclimate.org/de/portfolios?calculation_id=23389...