I bought the Le S3 international version (X626) last year from another Chinese website. Besides not getting LTE on that version on AT&T and TMobile, everything else is pretty solid about the phone, especially considering the price. Build quality is excellent, good performance and respectable camera.
The X525 has slightly different internals, like Snapdragon 652 vs Helio X20, but importantly it has the US LTE bands.
LeTV no longer supports their phones so you’ll have to rely on Gearbest’s return policy, which looks pretty good (never used it though).
89.99 + 0.28 shipping to US. Takes 2-3 weeks to arrive from my experience.
5.5 inch 1920 x 1080 pixels screen, Android 6, dual SIM.
https://www.gearbest.co