The aims of the two projects are completely different - please have a look at our website for more info.
 
If you are asking about the technical differences, we are using the same technology (cryptonote) as sumo and other monero derivates/forks, but some of the differences are that we use crypthonight heavy algorithm. We premined 1% (sumokoin premined 10%), we have a smaller total supply.

If you need more info, just ask.