realme is OPPO's subsidiary brand, and similar to OPPO, realme sells good-quality smartphones. realme phones even run OPPO's ColorOS software. Moreover, its phones are priced competitively, undercutting the Xiaomi's comparable models. You can trust realme for quality hardware and decent software, but the company doesn't have a track record (yet) for its software update cycle.
The realme 2 Pro and the realme C1 are Realme's latest phones, as of November 2018.
In terms of hardware and specifications, realme phones are right there, on par with Xiaomi smartphones. However, we personally prefer MIUI software on Xiaomi's phones over the ColorOS software on Realme's phones.
realme phones run OPPO's ColorOS software based on the Android operating system.
As of November 2018, realme does not have any software update schedule for its phones.
The company has only released information regarding the Android 9 Pie update for the realme 1. It will soon release the Android 9 Pie update for the realme 1.
The realme 2 Pro and the Mi A2 have similar hardware and design, but the Mi A2 has better cameras and cleaner software. The realme 2 Pro has a larger battery, though, and a cheaper price tag. We would still prefer the Mi A2.
That's a really challenging question to answer to. The Honor 8X performs similarly to that of the realme 2 Pro. The Honor 8X probably has a better rear-facing camera. However, the realme 2 Pro is slightly cheaper. It's your call as to what phone you want to buy. We prefer Honor's software and image quality.