Hey TS. Actually when you buy 3 one of them are older batch. Other two are from newer batch

Actually Logitech is known for running changes (RC) in between different batches. Even razer also does it

Another example is G102 cheapo mouse. Running changes (RC) happened in between. I remember around 2020/2021 G102 got RC which renamed to light sync and changed the sensor and RGB. G502 hero also got RC which changed braided cable to normal rubber cable. G703/G903 got RC which changed sensor to hero sensor from original pmw3366

Haha. Lurker of Reddit mouse review so know something from lolgikek. Logitech serious out of touch when comes to gaming. From Logitech side only best selling are g pro X series and g502 series. The rest no love at all. No refresh of g703 at all after last update in 2019 (yeah I got the 2019 version g703 hero). G60x series discontinued entirely because they think cannot sell (force us to just consider razer Naga line for mmo line)

Latest g309 is just a blob of ugly mess which either use AA battery or that power mat that Malaysia never get. Oh well for g304 redesign that not really follow g304 shape

I also got m650L signature . Wtf it doesn't support multi device because lolgikek force us to buy more expensive MX just for multi device (m590 discontinued lol)

Yeah and looking forward for "forever mouse" with subscription in order to continue use it lol

Same feeling haha. Screw logitetek. But understandably the company is already in process of ditching unifying because of security vulnerability being exposed years ago. Now newer models mostly already changed to BOLT receiver which is not mutually compatible with older unifying .

M590 outright discontinued because partially of unifying receiver as well as they want customers to buy more expensive MX line models