Welcome to Android Central! It should be. I don't think there are any modern phones with a microSD card slot that won't take a 32 GB card.
If it doesn't work, keep in mind that it doesn't necessarily mean it's incompatible--the card could be counterfeit. Make sure you get the card from a reputable store, rather than some random online seller. You can use an app called
SD Insight to make sure the card is what it says it is.