[Samsung Galaxy S10 Real Life Review] doggydog2:
First impressions before tweaking:

Hesitated with S10 because of root sitation, but got a green model finally.

Looks: always loved the way S8 looks, got a broken piece on desk and often grab it and wonder why all phones are not light and sexy tall like this. S10 is similar although the back cameras are simply ugly (why not in green color?) and the back is not shaped like Mi9, so in the end, Mi9 does look sexier (also better camera placement). Slightly of course, because if you look at 1+, that's a disgusting brick nowadays (model 6-7, owners of 5 not happy to see this either). Anyway, covers comes on it.

Form factor: i love less weight, 170g is a big pain threshold historically (having had S4 S5 S6 S7 S8 Note 3 4 5 6 9 i was getting rid of Note 4 & 9 very fast - above 170g), and planned to switch to a smaller phone in next generation anyway. S10 is light at ~150g. The market trend is not good thou, 6.4" is insane, phones come with weight like 190g and more - sick. S6Edge had ideal weight: ~130g. Just today i have to fix my torn pockets, for example. It's a real (first world) problem!:)

Hardware: getting a jack, SD card, hearbeat sensor vs infra on Mi9. SD card is so useful, as (encrypted of course) Titanium backups flow there and in case of accident, backup is available. If Mi9 gets broken like S8 did, i have a 100% data loss. With SD card, i also have flashing capability always available (OnePlus/Xiaomi: need special USB-C flashdrive always in pocket). And then, 1 TB storage for music. No doubt, SD card is extremelly beneficial. Also getting stereo which i will never use (who's playing music loud?). Missing LED light for sure, S10 won't show anything on screen when charging. Very weird location of power button, you need to significantly rellocated phone in hand to turn on camera. Xposed Edge will deal with this and set Bixby buttons properly.

Charging: applauds to Mi9 20W Qi and 27W QC both compatible, but Qi 15W is also a step up from longtime standard 10W. QC is only 15W. As i'm typing the post battery went from 35% to 65% and meter shows 9x1,28=11.5W in this stage, which corresponds to post. So 15W charging both QC, Qi, great but not excellent. Worse than Xiaomi, better than OnePlus because 1+ is not compatible (not going to buy not compatible chargers)! Samsung is still scared of batteries:) Charging other phone is cool. Especially when you buy Qi phones only. With Qi on my desk, office desk, next to bed, in car etc, i'm not going to fiddle with cables.

UI: OneUI is sweet, easy compared to horrific MIUI. Although Pie QuickStep is not there, at least there's navbar of very reduced height (bonus) which CAN scroll apps (great). I prefer fullscreen mode but couldn't keep it on other phones as i need magnify icon on most phones (to see the tiny letters in chinese shopping apps pics). Samsung is the only brand which gives you magnify function with this navbar, by using Power+VolUp or with other accessibility functions. To be clear, the basic magnify vanilla function still exists: 1) triple click -> that slows down whole UI(!), unusable 2) by adding button into navbar -> making fullscreen mode impossible. Glad to have another choice here and this means i have more screen available (bonus). Nice to have search AND settings icon on taskbar, and the actual Finder app is nr.1 historically. This is a issue on other phones, you have no good OVERALL search app and there's nothing comprehensive on Google Play (why the hell). Then we have Smart stay and other classic stuff, nothing new really. Oh, besides OneUI able to scroll down windows to emulate 1hand mode (which nobody uses), that is great.

Fingerprint: find it more difficult than Xiaomi/1+, as i have to push it harder.

Display: obviously very nice, phone is now changing lockscreen pics, they looks astonishing. Direct sunlight will be fine, no need waste time testing Samsungs for this. Edge is looking cool, but after 6T and Mi9, i'm accidentally pressing buttons on corners, need to learn again.

Speed: OneUI OS feels much slower than MIUI/Oxygen, not gonna lie. Oxygen is fine, vanilla, love doze gestures but there's no added value. MIUI tries to be more complex, but it's extremelly ugly OS skin with ultra chaotic Settings and app framework completely hacked (broken downloads, broken notifications, broken memory management, broken app permissions, broken dialogs with long timeouts).

And now it's time to customize and debloat to death. Expect scripts when this battle is over. If all ok, i keep it, if not, Mi 9 stays.