Use Google Play Credit To Buy Device Page

: Physical goods from the Google Store (gStore) are considered "ineligible items" for payment via Google Play gift cards or balance.

No, you use Google Play credit to buy physical devices like Pixel phones, Nest cameras, or tablets . Google Play balance is strictly limited to digital content and certain services within the Google Play ecosystem. Key Restrictions use google play credit to buy device

: You cannot transfer or convert Google Play credit into Google Store credit, nor can you move it to another Google account or cash it out to a bank. : Physical goods from the Google Store (gStore)