[Benjamin]

I am looking at a Chinese phone that indicates the following and need some help interpreting. I've been all over the Internet and am still confused by this.

Operate Frequency

W1900+W1700+W850 FDD B2+B4+B7+B5+B12+B17

W2100+W900 FDD:B1+B3+B5+B7+B8+B20 TDD(B40)

GSM 850/900/1800/1900

My understanding is phone is a quad band (for voice?) (GSM 850/900/1800/1900). And will also operate at LTE on the indicated frequencies and LTE channels. But why is 1800 missing and why is 1700 and 2100 included? Is it more than a quad band? I'm trying to find a phone that will work well worldwide, especially on LTE.

Thanks for your time.

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