Which Buffr Fits Your Ring

Short answer: choose the Original Buffr for wedding rings, engagement rings and Oura Ring Gen 5. Choose Buffr SMART for Oura Ring Gen 3 and Gen 4.

Your ring Choose Your Buffr size
Engagement ring or wedding band Original Buffr Same as your ring size, 4 to 10
Between sizes or a thicker band Original Buffr Size up to the next size
Oura Ring Gen 5 Original Buffr One size up. Oura size 8 takes a size 9.
Oura Ring Gen 3 or Gen 4 Buffr SMART Same as your smart ring size, 4 to 14
Men's ring, or size 11 or 12 Men's Buffr See the product page

Not sure of your ring size? Use the Buffr sizing guide. Other questions? See the FAQs.