Only seen it cheaper here once and that was for a refurb.
Unlocked for Worldwide use.
LETV LeEco Le S3 X622 4G Phablet Android 6.0 5.5 inch Helio X20 Deca Core 2.3GHz 3GB RAM 32GB ROM Fingerprint Touch Sensor 16.0MP + 8.0MP Camera
Display: 5.5 inch, 1920 x 1080 Pixel Screen
CPU: Helio X20 Deca Core 2.3GHz
GPU: Mali T880
System: Android 6.0
RAM + ROM: 3GB RAM + 32GB ROM
Camera: 8.0MP front camera + 16.0MP back camera
Sensor: Gravity Sensor, Fingerprint Sensor
SIM Card: dual SIM dual standby. Nano SIM + Nano SIM
Feature: GPS, A-GPS
2G: GSM B2/B3/B5/B8 CDMA EVDO BC0/BC1
3G: WCDMA B1/B2/B5/B8 TD-SCDMA B34/B39
4G: FDD-LTE B1/B3/B7 TD-LTE B38/B39/B40/41
Personally never had a S3, but heard good things. I did have a Le Max 2 and for the price I was really happy with it.