Device Breakdown - where do you see the IP address?

No I believe this was only in the first version, it looks like 2.0 is strictly user based.  

I found where you can hover over the letter icon in the "Email Opened" column.  This shows IP addresses, but no whether it was opened on a computer or phone.  V1 used to do this.

Hmm, you make a good point, you should add it to Sophos Ideas and let me know I will vote, if you could discern between computer and phone it could help drive budgets for better BYOD or Mobile budgets or drive stricter HR on them.

https://ideas.sophos.com/

I actually have this one on there for Phish Threat, i.e. linking it to central end point for training - ideas.sophos.com/.../36619492-phish-threat-training-concept

Hmm, you make a good point, you should add it to Sophos Ideas and let me know I will vote, if you could discern between computer and phone it could help drive budgets for better BYOD or Mobile budgets or drive stricter HR on them.

https://ideas.sophos.com/

I actually have this one on there for Phish Threat, i.e. linking it to central end point for training - ideas.sophos.com/.../36619492-phish-threat-training-concept