Charging Case for Oura Ring 4 & 3 - Portable Wireless Power Station

In this review the Doohoeek Updated Charging Case is evaluated for people who own an official Oura Ring 4 or 3 charger and want a portable, wireless way to power their ring. The bottom line: this is not a charger on its own but a clever wireless conversion case that turns the official wired dock into a travel-ready power station, and its 1000mAh battery reliably provides several top-ups so your ring stays functional while away from a wall outlet. The reviewer found it especially useful for travel and daily commutes where carrying the original wired dock was inconvenient.

Key Features

• Wireless conversion: Converts your existing official wired Oura charger into a wireless charging dock so you can charge without keeping the cable plugged into a wall.
• Firmware stability: Designed to eliminate charging interruptions caused by firmware updates, helping the ring charge fully each time.
• Universal fit: Holds the official Ring 4 and Ring 3 charging dock securely so all ring sizes and generations fit without needing a new charger.
• Portable power: Built-in 1000mAh battery supplies up to five full charges for the ring, making it practical for multi-day trips or extended use away from mains power.
• Complete kit: Ships with a custom cradle for Oura Ring 3, a USB-C cable, and a quick-start guide to simplify setup and portability.
• Compact design: Small footprint (about 2.5 x 3.5 in) fits into pockets or bags for easy transport to the gym, office, or on short business trips.

Who It's For

The charging case is ideal for Oura Ring owners who already have the official wired charger and want a compact, wireless option for travel or on-the-go charging without buying a new dock. It suits commuters, frequent flyers, and anyone who dislikes carrying cables and plugged-in docks.

It is not for buyers who expect a standalone charger in the box; the official charging dock must be installed inside the case. People who prefer an integrated, single-piece charger rather than a conversion solution should look elsewhere.

Pros & Cons

Pros

• Turns an existing official charger into a convenient wireless power station, increasing portability.
• 1000mAh internal battery provides multiple full ring charges, useful for travel and daily backup power.
• Small, lightweight design and included cradle and USB-C cable make it easy to pack and use immediately.
• Addresses firmware-related charging interruptions so rings are more likely to charge fully.

Cons

• Not a charger by itself; users must own and insert the official wired charger for it to function.
• Some customers report mixed functionality results, so performance may vary by unit or charger combination.

Specifications

Product type	Wireless charging case (conversion accessory)
Compatibility	Official Oura Ring 4 & 3 charger (charger not included)
Battery capacity	1000mAh internal battery
Estimated charges	Up to 5 full ring charges
Includes	Custom cradle for Oura Ring 3, USB-C cable, quick-start guide
Size	Approx. 2.5 x 3.5 in (compact, pocketable)

Our Verdict

The Doohoeek Updated Charging Case is a practical and affordable accessory for Oura Ring owners who already have the official wired charger and want greater portability. It delivers reliable backup power and a true wireless experience by converting an existing dock, making it good value for travelers and commuters, though shoppers should understand it is not a standalone charger and results can vary slightly by unit.

Frequently Asked Questions

Do I get a charger in the box?
The product is not a charger itself; you must insert your official wired Oura Ring 4 or 3 charger (not included) into the case.

How many charges will the internal battery provide?
The built-in 1000mAh battery is rated to provide up to five full charges for the ring under typical conditions.

Will it fit all ring sizes and generations?
Yes, the case is designed to securely hold the official Ring 4 and Ring 3 charging dock and accommodate all ring sizes for those generations.