And it turns out the two will share a birthday on AT&T: this Friday, November 7.
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The HTC One M8 for Windows will launch on AT&T November 7 for $27.92 per month on an 18-month AT&T Next plan, $33.60 a month on a 12-month Next plan, $199.99 with a two-year contract, or $669.99 solo.
The Nokia Lumia 830 meanwhile is an AT&T exclusive launching online and in the carrier's stores beginning November 7, for $18.75 or $22.50 a month on AT&T Next plans, $99.99 with a contract, or $449.99 contract-free. Interestingly AT&T will also give you a free Fitbit with the Lumia 830.
Considering the Nokia Lumia 830 is one of the last Nokia-branded Lumia phones, this may be a good time to give AT&T your money.