Costco doesn’t publish a reliable public restock schedule for Oura Ring 5, so the best answer is: no one outside Costco can say exactly when the next refill will hit. Recent public posts suggest Costco had a June 12 replenishment and then continued to show size-by-size, color-by-color sellouts and smaller follow-up restocks rather than one big reset.

What the public chatter suggests

  • One recent Costco-related post said inventory was replenished around June 12, 2026.
  • Other posts from June 17–22, 2026 describe specific sizes going in and out of stock, which points to rolling restocks instead of a fixed schedule.
  • A Costco-related Oura post also shows the product being offered as a pre-sale / limited availability item, which usually means stock can change quickly and unevenly.

Practical expectation

The most likely pattern is:

  1. Small restocks happen without warning.
  2. Popular sizes disappear first.
  3. Availability can differ by warehouse and online listing.

So the honest answer is: expect another restock, but not on a predictable date.

Best way to catch it

  • Check Costco.com and the Costco app frequently, especially for your size and color.
  • Contact your local warehouse, since some shoppers reported regional differences in availability.
  • If you see “shipping in 1–3 weeks,” that often means stock is moving, even if it looks scarce right now.

Useful takeaway

If you’re waiting on a specific Oura Ring 5 variant, the safest assumption is that Costco will keep restocking in small waves , not on a published timetable.