Motorola Moto G LTE (Unlocked) and Moto E (Unlocked)
The latest Moto G with LTE comes with a good 720p 4.5-inch screen and a microSD port so you can store more music or photos. It also runs an unmodified version of Android for snappy performance.
The Moto E is the low-end model, as it has a 540p 4.5-inch screen, but it's still perfectly capable as a smartphone, and it has a microSD port for more storage, as well as LTE.
Both phones work on most networks if you put in a SIM card.
Huawei P8 Lite (Unlocked)
Huawei's P8 Lite is a good-looking phone with a metal border that gives it a premium look and feel compared with most mid-range devices, which tend to be plastic only. It can either have two SIM cards, or one SIM card and a microSD card for expandable storage.
Samsung Galaxy Alpha (AT&T)
The Alpha looks positively premium with its metal border. It also has a sharp, bright, and colorful 720p 4.7-inch display, as well as LTE and a snappy processor inside.