Aqara E1 Smart Thermostat Installation Question

peter_h1979

So I'm looking at getting the following smart thermostat valve for some rads in the house.

https://www.amazon.de/Radiator-Thermostat-Geofencing-Compatible-Assistant/dp/B0B6DTSGSJ/ref%3Dsr_1_1_sspa?crid=2BCDUMVNTMGKD&keywords=aqara%2Be1%2Bthermostat&qid=1704289354&sprefix=aqara%2Be1%2Bther%2Caps%2C85&sr=8-1-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGY&th=1

I've checked some online reviews and they all seem to suggest installation is as simple as unscrewing the existing TRV and screwing on the E1 (this review in particular suggests this https://www.youtube.com/watch?v=zWWXeFBvfuE&t=605s around the 1:30 point of the video).

I've taken some pictures of my valves

Based on the pictures above it looks like I should be able to just unscrew the existing TRV's and screw on the E1's without having to turn off water or bleed rads?

Am I correct in this assumption?

Thanks.