Should you upgrade from Oura Ring 4 to Oura Ring 5?

Answer worked out Oct. 30, 2026

Checked Oct. 30, 2026

Oura Ring 4 vs Oura Ring 5

Oura Ring 4
THE PREVIOUS MODEL

Oura Ring 4

What you own
Oura Ring 5
THE NEWCOMER

Oura Ring 5

What you would buy
  1. Oura Ring 4: Typically 5–⁠8 daysBattery lifeImprovedOura Ring 5: Typically 6–⁠9 days
  2. Oura Ring 4: 7.9 mmWidthImprovedOura Ring 5: 6.09 mm
  3. Oura Ring 4: ~2.88 mmThicknessImprovedOura Ring 5: 2.28 mm
  4. Oura Ring 4: 4–⁠15Ring sizesReducedOura Ring 5: 6–⁠13
  5. Oura Ring 4: Oura Ring 4 Smart SensingHealth sensorsImprovedOura Ring 5: Redesigned sensors Oura calls more efficient and more accurate than previous generations
KEEP WHAT YOU HAVE

Too early to say if it is worth upgrading: we have not rated the changes to its battery and charging yet.

All the details

What you gain

FeatureYoursNewChange
Battery lifeTypically 5–8 daysTypically 6–9 daysImproved
Width7.9 mm6.09 mmImprovedYours7.9 mmNew6.09 mm
Thickness~2.88 mm2.28 mmImprovedYours2.88 mmNew2.28 mm

What you give up

FeatureYoursNewChange
Ring sizes4–156–13Reduced

Is your Oura Ring 4 still supported?

Software updates

Do your accessories fit?

What reviewers say about upgrading