+/- Update is not currently available on Android 5.0.
+/- The supplied headphones are of standard quality.
Currently, I am completely satisfied with the device. It even surpasses some of my expectations.
Here I can safely make a recommendation, for all those who seek a quality "phablet" at an affordable price.
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Addendum after several weeks usage:
I use the phone now for about 2 months and I am still enthusiastic about it.
The battery has lost no power and still holds with me depending on the load at least a full day.
I have a smart phone last week for a 900km journey as a navigation system used (with Google Maps), and there were no crashes or major problems in locating. I knew by Samsung from the past also different. Whether that has then located at the Smartphone or on the app was only time undecided.
In the meantime, my cell phone and the one time or another is out of his hand slipped (used but a rubber bumper), so damages could be completely prevented.
But the inner life seems to have thus taken no harm, because everything is still functioning properly.
A pity that's still not the new Android version 5 is available, but what is not, can still become.
In particular, I must here again the finger print sensor on the rear panel.
Works easily and reliably, as originally expected from such a Toll or wishes.