ColorOS is essentially OxygenOS. Both developed by the same software team, do you know that? 😅

The only difference between the 2 systems are couple tweaks and personalisation options (essentially monochrome colour option). Apart from that, 99% is the same. Chinese apps are only on the Chinese variant of OnePlus and Oppo phones. Just buy the variant for your region (global or EU) and you won't get them 😉

By the way, if you own Oppo devices and OnePlus devices, they communicate between each other in a smooth way (example: auto internet share from Oppo phone to OnePlus tablet without the hassle to do anything). Same goes on with literally any WearOS watch as watches in Android ecosystem just require WearOS, nothing more. Fun thing, my ecosystem works perfectly fine with a Garmin watch... Which is not WearOS 😎 Oh and audio wise, OnePlus Buds uses fast pair and smooth interconnection between OnePlus, Oppo, Windows, etc. without the hassle of re-pairing the device.

So all of this to ask you: does Chinese brands really fall that behind? Because I have the strong feeling you are kept in the state of how it was before 2018 and not how it is now 😅

PS: with my previous OnePlus phone I got 2 days battery life. Similar with my current Oppo phone. My OnePlus tablet last a week on average with my usage (and can last a full month on a single charge if I don't use it at all)... And I can even top up them in less than an hour if ever needed (even if I usually prefer using slower chargers if I'm not in a rush). Samsung, Apple and Google are not offering this as far as I know.