4.1

Brilliant display, outstanding camera. Okay-ish UI (I have been spoilt with Xiaomi / MIUI).
Audio - loud speaker. The built in Music Player could have been better. There is no "Equalizer", BUT, there is an Audio Enhancing thingy - DTS. It has just two knobs, Bass and Treble. It does a great job. It would take me hours of tweaking with the Equalizer to give me the audio effect that DTS provides.
A few common issues all over the UI - The English is incorrect at times. There are a few mistakes all over the UI.
Battery backup is good. Lasts a day with moderate usage as opposed to my 1.5 year old Redmi 1S, which needed to be charged once more during the course of the day.
Overall, good phone. A tad bit overpriced, but good.

I bought this phone during Amazon sale for Rs. 12999 and I returned it within 1 week.
Pros:
1) Comparitively Compact phone at 5" screen when nowadays we have huge phones.
2) Very good, bright, sharp display
3) Excellent Camera , especially front camera
4) Dual SIM with 4G
5) Good Design and Build quality
6) microSD card support, not shared with Dual SIM slot like many other phones
7) Calling recording, blocking is built-in

Cons:
1) Really poor, unoptimised, buggy Software. Nubia UI is major con
2) Even after installing other launchers performance is poor
3) Gets warm quickly with basic usage
4) Headphone and speaker volume is low
5) Very basic gallery, music player, video player apps
6) Missing built-in VOIP account option - This is important to me
7) Red theme is everywhere
8) Only Lolipop 5.0 as of now, no idea of future updates
9) very few service centres

Overall for me , this is nice phone crippled by buggy software. Also they have increased price again to Rs. 16999 which I feel is high, at Rs. 12999 price is ok and you can buy it for camera, screen and design

The phone is good technically. Good Camera, Good Sound and Crisp Audio. The problem comes on the software part. The Indian version of Nubia Z9 Mini is still on Nubia OS ver. 2.8 but internationally they have moved on the 3.16, which is much more better and advanced. Problems with version 2.8 is that notifications don't appear on lock screen, not many shortcuts for everyday tools like calculator and torch. The mechanism to switch between SIM cards is very typical. u have to slide the button sideways each time you have want to switch between SIM cards to make calls.

AND THE PLUS ON THAT IS, there is no customer support. there is only a toll free no. where the only answer is a simple NO or WE DON'T HAVE ANY INFORMATION ON THIS RIGHT NOW. The Phone is good and performs well otherwise.

Everything in this phone is almost okay for this price range..but, 2 things that pains a lot is while playing a normal game also the phone gets overheated and if played any high end games need to think about it which may get even worse. and second thing coming to the dialer which nubia provides is not impressive for dual sim callers. everytime need to check/uncheck the sim card type and then call as it takes a default sim for calling. The video reviews are completely different coming to the gaming part..can play but get heated instantly..

I was skeptical before ordering phone of virtually unknown brand but I am glad I did took the risk. This phone is really perfect, great built, and the camera and display are absolute gem. I was little disappointed to find that back panel is made of plastic(although not cheap quality), thought it was made of glass panel. In the beginning my phone was getting heated but after the OTA update there is no such heating problem.
I would definitely suggest, way better than Sony Xperia Z series phones.

The phone is good, the camera is great. But ZTE is not providing any update for the Indian model and the current one is way too outdated. I bought this phone in October end, but got one imported in May when this phone was released in India, which means they still haven't sold out the initial inventory. Not a surprise considering how ZTE is ignoring the Indian market. Do not buy this phone unless ZTE releases the latest update in India.

After using one month I writing my review , its really amazing phone especially camera oh my god its like DSLR clarity , battery backup is too good and design is awsone. But I am bit disappointed with software. Overall its just amazing phone.

I buy this phone from amazon store and using it since last 12 days. Overall phone is good but the battery is not as described. Battery is not fully charged even in whole night charging and fast draining of battery is also noticed. The talk time of battery is found not as explained by company.

The phone is regardless the best one in the price range.
Camera: one of the best I have seen. Earlier I was user of iPhone, nexus 5, xperia z1. And this is the best yet.
Battery: for my usage I get around 35 hours which is between moderate to heavy usage. I'm not a gamer though.
UI: smooth UI. Happy about it. The speciality of it is in the Feature and gesture input.
Hardware and Design: upon continuous usage phone gets a bit heated but tolerable. Haven't faced any lag. Smooth enough for my usage
Design is actually better than any. Perfect weight distribution and handling is actually pretty easy.
Music: DTS sound is actually the highlight of the phone. So no negatives regarding this. Decent loudspeaker.
My only complaint about the phone is that it doesn't come with headphones. Apart from that the features it carries for the price is definitely a sellout.

Awesome phone, looks r premium.Ui requires bit Polish as sometimes it tends to be bit laggy, still manageable. Camera, one of the best in this segment. Pictures looks like it's taken from digital camera. Battery backup s also good. Just go for it. I am loving it ;)