You need to consider suitability to your trading style, potential profit, risk, and how well it fits the rest of your portfolio.
CFDs and Binary Options have a lot of similarities, being financial vehicles which track the value of an underlying asset, rather than you purchasing the underlying asset, but they are very different in terms of binary options and cfd they are suitable for. The big difference between CFDs and Binary Options is that investing in CFDs means that your potential profits or losses depend how much the underlying asset varies from its initial binary options and cfd, whereas binary options will always display either a predefined profit, or predefined loss, depending whether the asset appreciates or binary options benefit beyond points decided at the time of making the trade.
Binary Options Whenever you make any trade with any financial instrument, you should be an expert in the field your trading in.
In your portfolio, Binary Options should be reserved for the trades you are most confident in, if you are comfortable with the risk. They should make up a relatively small part of your portfolio, as to avoid a bad loss impacting your ability to make trades.
On top of this, CFDs are much more flexible — you can exit whenever you like, rather than waiting for a predefined date for the derivative to expire as with binary options, meaning if you unexpectedly need to free up capital, you can. The choice is yours!
Well, really, you should consider trading both.