5 high-end dual SIM smartphones that you can buy right now (US)12
Still, we did find some smartphones - all launched this year - that offer impressive features alongside dual SIM capabilities, and can currently be bought unlocked in the US.
Unfortunately, since they're all international models (sold in the US by third-party vendors), these smartphones do not come with US warranty. If that's not a problem, and you really need dual SIM capabilities plus top notch specs, you'll probably like the list of handsets that we're including below (in alphabetical order).
Released earlier this year as HTC's third Quad HD smartphone, the One ME is a handset that resembles the One M9 and One M9+, but, unlike them, it's made out of plastic, not metal. The dual SIM variant of the One ME can currently be bought via Amazon for $479 - not a bad price for a high-end device, though we must mention that this particular One ME does not support US LTE (but it will work on the 3G networks of AT&T and T-Mobile). Besides the already mentioned Quad HD screen - a 5.2-inch panel - the HTC One ME features an octa-core MediaTek Helio X10 processor, fingerprint scanner, a 20 MP rear camera, 3 GB of RAM, 32 GB of expandable storage space, and a 2840 mAh battery.
In case you didn't know, the LG G4 has a dual SIM version, and, although this hasn't been officially released in the US, you can order it via Amazon for $485. You can get the dual SIM LG G4 in either black leather, or brown leather. Just like the regular G4, the smartphone comes with a 5.5-inch Quad HD screen, 16 MP rear camera with laser auto focus, six-core Snapdragon 808 processor, 3 GB of RAM, 32 GB of expandable internal memory, and a 3000 mAh removable battery. There's no support for US LTE, but the handset will work on AT&T and T-Mobile 3G.
While Samsung is usually manufacturing dual SIM versions of its flagship devices, these are never officially launched in the US. Still, the dual SIM variant of the Samsung Galaxy Note 5 can be bought via Amazon, costing $699.89. Similar to the Galaxy Note 5 that's been released by US carriers, the Note 5 dual SIM offers a large, 5.7-inch Quad HD display, and is powered by Samsung's own octa-core Exynos 7420 processor. Other highlights include an S Pen stylus, fingerprint scanner, 16 MP rear camera, and 4 GB of RAM. The dual SIM Galaxy Note 5 partially supports US LTE (AT&T and T-Mobile), and has 32 GB of non-expandable storage space.
Yes, there's a dual SIM variant of the Samsung Galaxy S6 edge+, too. And, if you're willing to spend $779 on it, you can order one via Amazon. While it resembles the Note 5 in many aspects, the dual SIM Galaxy S6 edge+ doesn't have an S Pen, and stands out with its dual-curve 5.7-inch Quad HD display. It, too, offers 32 GB of non-expandable storage space, and partially supports US LTE (AT&T and T-Mobile).
The Xperia Z5 has yet to officially land in the US in any flavor, but that didn't stop third-party sellers to start commercializing it - including a dual SIM variant. The dual SIM Z5 costs $658 at Amazon, and fully supports the LTE bands of AT&T and T-Mobile. Like most of Sony's high-end Xperia smartphones in recent years, the Z5 has a slim, water-resistant body. Other features include a 5.2-inch 1080p screen, octa-core Snapdragon 810 processor, 3 GB of RAM, 32 GB of expandable storage space, 23 MP rear camera, and a 2900 mAh battery.
P.S.: The smartphones presented above are not compatible with Verizon and Sprint, since they're all GSM devices.