Banana Pi - Model: BPI-M2-Berry compared to Raspi : fully compatible?

HI, one question - as a beginner i am musing about the question which system to use: i love this great community for its many users and the options to share ideas, knowledge and code. Should i buy a Raspberry Pi or a banana is told that the Banana Pi is (fully) compatibel to the Raspi 3 in other words: can i use the above mentioned Banana Pi and work with this?`Please help. Thanks! I didn’t find the right solution from the Internet. References:

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The case is the same and that’s it. the img. are not compatible