recommended phones with 1700/2100mhz mode?

[edcoolio]

850 = 3G (Non T-Mobile/ATT)
1700 = 3G/4G+ (hspda+) (T-mobile 3G/4G HSPDA+)
1900 = 3G/4G+ (hspda+) (Most Providers)
2100 = LTE Band (T-mobile/ATT/Verizon)

I have used the posh phone one T-Mobile/ATT/Cricket(ATT)/Simple mobile/MetroPCS(current Provider)/Sprint/US Cellular/Verizon

I'm referring to the T-Mobile type, but for Wind or Mobilicity. They require both 1700 and 2100.

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Of course I'm referring to ASW, just couldn't remember the term for it.

If you require 1700/2100 where you live - or if you travel a lot - then the Huawei Ascend P6S or P6S might be options. I do not know what your budget is, but these run about $300. They look rather cool at around 6.2mm for a 4.7" screen with a 2000 mAh battery.

As to the 1900 frequency, all I can say is that "eventually" it will be everywhere for T-Mobile towers (and may already be available where you live), but be 100% positive before you pull the trigger. There is a reason why they want you with 1700/2100 and returning used phones, even if bought locally, always seems to be a major hassle in general.