eBay has the Apple iPhone 6s 16GB GSM Unlocked Smartphone (several colors) refurbished for $170 with free shipping. Features 4.7" Retina HD display w/ 3D touch, A9 chip, 12MP iSight camera, 4K video (2160p), 802.11a/b/g/n/ac with MIMO, BT 4.2, iCloud, iOS 9.
Has good Amazon Reviews.
eBay has the Unlocked Asus ZenFone Zoom 128GB 4G LTE Android Smartphone for $159 with free shipping. Retail price: $359. Features 5.5-inch IPS full HD display (Gorilla Glass 4); 13MP rear 3X optical camera and 5MP front camera, 64-bit Intel 2.3GHz Quad Core processor with 4GB RAM and 64GB storage. ZenEar and matching leather strap included, 128GB internal memory, 4GB RAM, 802.11ac wireless, Bluetooth 4.0, microSD card slot, and Android 5.0 (Lollipop) OS.