Hay Gordy7,
Wowsa so it indeed is the correct part, Upon seeing that pic I went and dug up my very first seeed chip (2yrs ago)I ever used from the collection pile. (you can see it’s an “Xiao Nrf52840 BLE” )
When I connected it to the laptop I’m on at the moment even Windows Dev Mgr. See’s it a “Xiao Nrf52840 Sense” when plugged in and Identified. File manger shows it as “Xiao Sense”(E:)
So looking at the bootloader info I see it’s NO different.
UF2 Bootloader 0.6.2-12-g459adc9-dirty lib/nrfx (v2.0.0) lib/tinyusb (0.10.1-293-gaf8e5a90) lib/uf2 (remotes/origin/configupdate-9-gadbb8c7)
Model: Seeed XIAO nRF52840
Board-ID: Seeed_XIAO_nRF52840_Sense
Date: Nov 30 2021
SoftDevice: S140 7.3.0
I’ll put it under Strange but true. I’m guessing it’s the same PC-board so same board file.
just more proof to me that NOT allot of thought goes into the soft side of these NrF52840 Xiao’s
HTH
GL 
PJ