@aecio1987, place an ad in the newspaper and on the radio or put up posters that you look for your mobile phone because you have some things in it that you are sentimentally attached to - of course offer a reward to whoever returns your mobile phone, and the reward should be higher than the price of the mobile phone.
That's if the thief has not flashed the phone's OS by now. That what they usually do when they can't access the phone using the password or Touch ID.
Absolutely gutted by OPs loss. There is no way he's going to recover the Bitcoins in the other account minus the seed phase to it.
If it is an iPhone there is a chance that it was iCloud locked after the theft (maybe for android there is something similar). If you know look on ebay you will find many iCloud locked iPhones. For those phones there are only two options:
You are the original owner and apple can remove the iCloud lock for you.
You are not the original owner and you will have to reset the phone completely with special tools or you just take expensive parts like display etc.
So your best bet may be to search for your iPhone on ebay etc. since if you can buy it there there is a chance that the data is not yet deleted because the thief does not have the special tools that are needed to reset the phone.