[Xiaomi Redmi Pro Questions & Answers] painkillah:
Basically went through the same decision. Was using G4 dual sim, really needed fingerprint reader for Exchange mailbox. Got redmi pro - amoled screen is much better for all around usage (IPS QHD on g4 is whiter and little bit more detailed, also has gorilla 3, but Redmi Pros screen is more pleasant to look at and you really cant tell the difference of the DPI on normal day to day usage), battery life is considerably better on redmi PRO (around 1000 more mAH, lower resolution screen + possibly weaker processor gives more battery life), build quality is quite good ( i could nitpick here and there, like the fingerprint button dipping a little bit too deep on the left side, for two weeks has not become a problem yet though. metal unibody feels good, although more slippery than leather G4). The camera is my only grudge - although I did not take that much pictures on my G4, I loved the possibility of deep manual control over the camera. With Redmis camera, pictures in the dark are quite bad - but then again the time to focus and actually take a picture are noticeably faster on Redmi, so everyday snaps (for work, facebook chat and so on) are less of a hassle.

One of the true negative sides, is the lack of LTE 800 mhz(band 20 ) on the REDMI, as that is used here by all of the carriers. On G4 I had great 4g coverage indoors and on the road (countrysides, highways), Redmi falls short here, and lives mostly on 3g/3g+, rarely dropping to Edge - although I do get my 10ish mb download speed on the 3g, the networks used to be overburdened a year ago (especially 3g bands, now it is a bit better), so 4g was a saviour. Also the lack of a dedicated SD-card slot is a negative side, although not really a problem. I am yet to decide, if I'm keeping redmi pro as my main device - lack of 800mhz 4g being the only real decisive factor.

On the software side, I flashed Xiaomi EU rom - Sim toolkit started working (did not work on chinese version). Coming from LG factory roms, also having used CM and AOSP mods earlier, miui is a really well made "skin" for android. It is so well made actually, I wouldnt even call it a skin - the design and the configuration possibilites are very good. Besides only few small things, I would place miui over LG, Samsung and AOSP/CM in that regard. Few small gripes I have, is that I cannot seem to assign contacts to a specific sim (for calling purpouses - for example, i want work numbers to always call on sim 2, private numbers on sim1. right now I have to click and hold on the contact/number, and on the menu select Dial with sim X, where x is 1 or 2). In the dialer there are 2 call buttons for each sim, but that works only if you input the number manually. On LG G4, you could easily swap between two sims (selecting the main sim), or assign a sim for a contact.

Another problem, what is starting to get me a little bit, is the dropping of the 3g network - or rather the downstream part. On random times, all downloading ceases yet the phone shows upstream is still active. Sometimes this corrects itself in a minute or two, but when you need the connection now, you have to toggle mobile data off and on. This does not happen with Wifi. It might be the problem with the xiaomi.eu rom, as during the few days I used the factory Chinese rom, I did not notice this.

So basically for me, it comes down to the 4g 800mhz support, which for whatever reason, a lot of chinese phones lack (something to do with India laws?). Otherwise, for 180€ ish euros, this is a great buy ( if it does not degrade over time too quickly, especially the software part).