Apr 6, 2017 - 3:49 PM
Thanks for joining us Pat127!
This really depends on the details of your trip: which day trips do you plan to do in both Switzerland and Germany? How many and how long are the train trips in Germany? Once you have listed that, you can compare passes as explained on this page.
Indeed the Eurail Select Pass is cheaper and covers less. But perhaps it fits your plans nevertheless. Many Swiss towns are walkable so no transport needed within town, but you may need cableways, boat trips, museum entrance, etc. If so, the Swiss Travel Pass saves money. You'll find details here:
Note that many people choose a rail pass for Switzerland plus point to point tickets for trips outside of Switzerland. That might work for you too.