Which phone should i buy?

[Romatic]

I have 4 options to choose based on the price and my needs:

1.XIAOMI Redmi 3
http/www.pandawill.com/xiaomi-redmi-3-smartphone-4100mah-4g-lte-50-inch-64bit-octa-core-2gb-16gb-grey-p114243.html

2.Xiaomi Redmi note 3 pro
http/www.maxsources.com/xiaomi-redmi-note-3-pro-3gb-32gb-snapdragon-650-hexa-core-55-inch-4000mah-white-p-408.html?zenid=0ij1hujjnm7lat21qu2naeq700

3.OUKITEL K6000 Pro
http/www.tomtop.com/oukitel-k6000-pro-4g-mtk6753-64-bit-octa-core-smartphone-5-5-2-5d-fhd-1920-1080-pixels-screen-android-6-0-3gb-ram-32gb-rom-8mp-16mp-dual-cameras-alloy-frame-0-3s-fingerprint-otg-p1457g-eu.html

4.Xiaomi Redmi note 3 pro
http/www.coolicool.com/xiaomi-red-rice-redmi-hongmi-note-3-pro-prime-3gb-qualcomm-snapdragon-650-18ghz-hexa-core-55-inch-g-43069

I prefer the xiaomi redmi note 3 pro on Maxsources.com,it support the DHL freeshipping,and accept payment by paypal,the only problem is the site is new!
Who can give me some suggestions?

 

[Romatic]

And one more important,i live in Polish,any idea to avoid the tax?