OURA Ring 4 Charger (Size 8) — USB-C Dock for Fast 20–80 Minute Charging

Overview

The OURA Ring 4 Charger is the dedicated charging dock for this model, offering a simple and tidy way to power your ring. As the sole charger designed specifically for the OURA Ring 4, it pairs seamlessly with the device and helps keep your routine uninterrupted.

Designed with intention, this charger uses a size-specific docking approach to align your ring perfectly for power transfer. The included USB-C to USB-C cable connects to an external 5Vdc power supply that meets current safety standards, helping you stay on track without guessing about compatibility.

How it charges

Charging speed varies with the ring’s remaining battery. In many setups, you can expect a full charge in roughly 20–80 minutes. The experience is streamlined and quiet, with the ring resting securely on the dock as it draws power.

• Size-specific charging dock ensures a secure, proper fit for your OURA Ring 4.
• About 20–80 minutes for a full charge, depending on remaining battery.
• Battery status can be checked at a glance in the OURA app.
• Requires an external 5Vdc power supply that complies with IEC 62368-1.

Daily use and care

Integrate charging into your routine—place the ring on the dock by your bedside or on your desk. The compact form and tangle-free USB-C cable help keep your space organized, so you can focus on your day. The charger’s design emphasizes reliability, ease of use, and portability for everyday charging needs.

• Compact form factor fits into small spaces and is travel-friendly.
• Size-specific design reduces misalignment and ensures optimal charging contact.
• Easy to detach and reattach, ideal for quick morning or evening routines.

What’s included

The package centers on the OURA Ring 4 Charger and USB-C to USB-C cable, ready to connect to a compatible 5V power source.