For those who store device.model value, you could be interested to convert model into a more user friendly value.
i’ve merged and share several list here 
It is a simple quite exhaustive list of device model for smartphones and tables that could run under cordova/ionic.
Even if you are getting device model from native android/ios code, this list could be usefull.
I hope it will help some folks.
Feel free to like and comment if there are some missing device models.