Find my IPhone - apple watch

Hi,

So I have lost my Apple Watch. I have been using the find my iPhone app to track its location (although I thought it may still be in the house somewhere).

When I access the find my iPhone app it states that the watch is “at home” but the icon appears further away from my iPhone and AirPods which are actually at home (as shown in picture). The location is regularly updating, although I was sure if it were at home it would be out of battery. My iPhone is not connected to it via Bluetooth so did not think its location would update based on my iPhones location as a result.

Why is this happening? Could someone have it? I have turned on lost mode.