How to Find a Lost Smart Ring

What you’re dealing with

Rings come off for washing up, for the gym, and at night, and they roll a long way when dropped on a hard floor.

Broadcasts as	Oura, Ultrahuman Ring, Galaxy Ring, followed by an identifier
Typical battery	Four to seven days
Findable by scan	Yes, while powered on
Search window	Days to weeks

Once the battery is gone: Several days of battery, which is generous for something this small, but it is still a finite window.

Removed to wash hands, left on the edge, or worse.

Rings roll. Check the far wall, not the spot you dropped it.

Off for lifting, into the bag.

Check the last-seen map firstBefore you search a room, find out which building. A pin saves you from searching the right way in the wrong place.
Scan from the middle of the roomNote everything that appears, then select the device you want so the rest of the list drops away.
Walk and watch the signalSweep in a straight line, give each position a few seconds, and turn 90 degrees when the reading stops rising.
Search inside things, not across themA strong signal with nothing visible means it is underneath or inside something. Fabric and metal block Bluetooth badly.

Scan at floor level. A ring will be on the floor, not at waist height.
Sweep the room perimeter, a dropped ring rolls until something stops it, which is usually a skirting board.

The same method applies to these, with different battery windows and different hiding places.

Not by scanning. Four to seven days is the window; after that, the last-seen position is what you have.