Can I put my 6s sim into another 6s? (iPhone troubles)?

Okay so to make a long story short; I spilled tea on my iPhone 6s and now the sound won't work and it's acting overall pretty wonky. I have an old 6s laying around from when we were with a different carrier, can I just switch the SIMs? And call it good? Or will I have to take it to Sprint and have them activate it all over again?

Sure, in fact you can put it into a lot of unlocked phones!

Yes usually you just need to put sim card into other phone and be set