A leaked press release says that the Lenovo Legion Go will cost $799/€799.
Per Windows Report, the handheld will be revealed on September 1 and will go on sale in October.
The competitor to Valve's Steam Deck and Asus ROG Ally will run on Windows 11 and feature an AMD Ryzen Z1 Extreme processor.
source https://www.gamesindustry.biz/lenovo-legion-go-will-reportedly-set-consumers-back-799