Telephone Consultation good configuration, stability, long life battery

Before I used the Galaxy Mega 6300 but lost, I expected to buy back another machine with the above requirements.

• Find stable Android smartphone range 3 million or less / company should buy phones or portable products?

Sender: Susu 
Email: hoangtung@dota.vn

Greet him / her.

I'm torn between the following devices:

1. Nokia Lumia 1520 or 1020 or Nokia Icon (not seen on the market).

2. Samsung Galaxy Note 3 or Samsung Galaxy Note 10.1 (version 2014) or Samsung Galaxy Tab Pro 8.4 (not seen on the market).

3. Sony Tab 11 or Microsoft or Nokia 2050 Sureface Pro 2.

4. Sony Xperia Z Ultra

The product I list them here as I like the design of it.

For the price, I'm not too concerned as long as the choice is to be satisfied. My job demands it includes all of the following: Surf the web, using the basic office applications, website administration (upload to the server ...). What I need is a long battery life, good configuration, using the stable ...

My choice is currently in favor of 1520 as it used Nokia Lumia Windows Phone, relative configuration, relatively large screen to work but can still carry pants pocket without a backpack. Later, if developed to 4G I still do not become obsolete, can be heard calling, imaging is quite good, with an expandable memory card slot, use Nano Sim ...

However, because not only experience through the Internet only to find out that I do not know how real damage. If he / she does have used through all kinds of products in it some time to share with me.

Thank him / her a lot.