If you're looking for the "best cheap smartphones" it shouldn't matter how you get it, as long as it's a great phone. Right?
How about the Galaxy S8 for only $299? Previously we had the Moto Z Play on this list, but a Galaxy S8 for under $300 is just a crazy good deal that's too good to pass up. Seriously, the Galaxy S8 (even refurbished) is better than any other budget or cheap phone you'll find on the market.
The Galaxy S8 gets you a beautiful curved 5.8-inch AMOLED display that's better than any other cheaper phone screen. You'll get great performance from a powerful Snapdragon processor with 4GB of RAM, 64GB of storage, and a high-end 13MP camera. This phone is water-resistant up to 5ft, has wireless charging, great sound, plays tons of apps and games, and is a great buy for $299.
MetroPCS and Boost have the Galaxy S8 in Black or Gray with 64GB of storage for only $299. It's refurbished, but who cares. You can find this phone for a similar price or a little more money from other retailers if you look around.
Buy the Galaxy S8 from Boost Mobile for $299