It's a pretty good, standard smartphone. Some poorly translated notifications and occasional Chinese text give it character, I think. Unfortunately, it comes with adware (and possibly malware). After using the phone for a few weeks, I started getting annoying popups.
Because the phone's fairly obscure, I can't find anything to replace the built-in software. So if you want to remove the adware (and other pre-installed rubbish), I suggest the following:
1. Download KingoRoot and root the phone (unroot it afterwards)
2. Download Disable Application [Root] and freeze the following apps:
- superKey
- Browser
- TestRadarAdapter
- SCWeather
- Black Hole
- com.ishow.client.android.plugin.comp...
- Omacp
- FM Radio
- Bypass Settings
- Mi Moment
- Mi Assistant
- One touch uninstall
- holospiral
- phase beam
- print spooler
- basic daydreams
- zte cares
- com.android.fakecall
- com.zte.update
- bubbles
- locationem2
- user guide
- zte account
- weather
- exchange services
- Mi-POP
- emode
- mieasymodeapiservice
- mtk android suite daemon
- mtklogger
- androidlive wallpapers
- com.fingerprints.service
- system updates (com.zte.zdm)
- phone anti-theft
- upgradesys (com.fw.upgrade.sysoper)
- browserprovider
- live wallpaper picker
- bsptelephonydevtool
- fingerprint service
- gxfpservice
- setup wizard
- photo screensavers
- music visualisation wallpapers
- ume appservice
- zdmdaemon
- mtk nlp service
- one time init
- ZTEGesture
- uim toolkit
- launcherwidget_zte
- location of number
- engineercode (com.zte.engineer)
- sim toolkit
- atci_service
This has been tested on my own phone and it seems the apps listed above are not essential. Once I disabled them, the popups stopped.