Honor 6x is better in my opinion. I am using this phone and it has nice cameras and lag free performance, good battery backup. However , Smarton Srt.Phone has snapdragon 652 processor which is more powerful but other things like cameras and battery are average. Smartron Srt.Phone 64GB vs Honor 6X 64GB
Xiaomi Redmi Note 4 is best phone in its price range. I am using this phone and it has excellent performance and battery backup. Cameras are also better than my friend's Smartron Srt.Phone . Moreover, MiUi is more clean and smooth and has lots of features. Smartron Srt.Phone 64GB vs Xiaomi Redmi Note 4
The srt undoubtedly. LeEco on my opinion is a gimmick based brand, with phones having sky high numbers (as in RAM, Cameras etc.) but have absolutely nil optimization and a horrendous skin on Android. LeEco devices are also as fragile as a wafer, my friend lost his phone (Le 1s) with just one drop with a case (yes, literally the whole phone stopped working, losing the ability to boot also) while I've dropped my srt 4 times without a case and it's also scratch free. Srt also has great updates, gets updates sorting many issues on a monthly basis, while you are left for yourself with the LeEco. I'd say srt is the best phone under 20K undoubtedly.
Smartron SRT is a much better smartphone than Coolpad Note 5 because it offers a better processor performance, more storage capacity, a better HD video recording camera, update android OS and a better overall specs and performance
it also offers the latest tech like NFC for faster file sharing.