EDIT : confirmed by Xiaomi that it has B28
https://www.ozbargain.com.au/node/378734#comment-5957283
Wow what a phone! Cheapest price yet and comes with some amazing features
Now updated with code from GearBest making it even cheaper - thanks Rep!
Band 28 - Check
NFC - Check
Wireless Charging - Check
5.99 inch display - Check
Express Shipping - Check
Andoid P Beta Device - Check https://developer.android.com/preview/devices/
You can see a video about Xiaomi Mi Mix 2S running stock Android here
Main Features:
Xiaomi MI MIX 2S 4G Phablet 5.99 inch MIUI 9 Qualcomm Snapdragon 845 Octa Core 2.8GHz 6GB RAM 64GB ROM Dual Rear Cameras Bluetooth 5.0 Fingerprint Recognition Wireless Charging
Display: 5.99 inch, 2160 x 1080 Pixel Screen
CPU: Qualcomm Snapdragon 845 Octa Core 2.8GHz
System: MIUI 9
RAM + ROM: 6GB RAM + 64GB ROM
Camera: 5.0MP front camera + 12.0MP + 12.0MP dual back cameras
Sensor: Proximity Sensor, Accelerometer, Gyroscope, E-compass, Fingerprint Sensor, Ambient Light Sensor, Hall Sensor
SIM Card: dual SIM dual standby. 2 x Nano SIM card
Feature: GPS, A-GPS, Glonass, Beidou, Galileo, Barometer, Vibrating Motor
Bluetooth: 5.0
Network:
2G: GSM 850/900/1800/1900MHz CDMA EVDO BC0/BC1/BC6/BC10
3G: WCDMA B9 UMTS (WCDMA) / HSPA+ / DC-HSDPA B1/2/4/5/6/8/19 TD-SCDMA B34/B39
4G: FDD-LTE B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B25/B26/B27/B28/B29/B30
TDD-LTE B34/B38/B39/B40/B41
Enjoy!
unfortunately: expensive price - check
but the phone does look very nice!