WLAN bridge

*What's WLAN bridge?
It is to connect to a Wi-Fi network and share that Wi-Fi connection via a mobile hotspot at the same time, to make your phone act like a Wi-Fi repeater or extender, but only on a very narrow range of Android devices – usually high-end smartphones, except for several Huawei/Honor phones.

*Why use WLAN bridge?
1.WLAN bridge can share the internet connection of mobile which login in public or private hotspot.
2.WLAN bridge can join two Wi-Fi networks together, often for the purpose of increasing the coverage area of a Wi-Fi hotspot.

*What's the WLAN bridge setting?
Enable Huawei/Honor (EMUI) mobile's WLAN bridge setting which hidden in system menu.

*As far as I know, only the following devices can share their Wi-Fi connection:

Samsung (“Wi-Fi sharing”):
Samsung Galaxy S7, S7 edge and S7 Active
Samsung Galaxy Note7 and Note FE
Samsung Galaxy S8, S8+ and S8 Active
Samsung Galaxy Note8
Samsung Galaxy S9 and S9+
Samsung Galaxy Note9

LG (“Share via Wi-Fi connection” / “Wi-Fi sharing”):
LG G5
LG V20
LG G6
LG V30 and V30S ThinQ
LG G7 ThinQ
LG V40 ThinQ

Honor (“Wi-Fi Bridge”):
Honor 6X
Honor 7X
Honor 8 Lite
Honor 9 Lite and 9i
Honor 10
Honor View 10

Huawei (“Wi-Fi Bridge”):
Huawei P10 Lite
Huawei Mate 10, Mate 10 Lite and Mate 10 Pro
Huawei P Smart
Huawei Nova 2i
Huawei P20 Pro
Huawei Mate 20 Pro

Essential:
Essential Phone

Google:
Pixel 3 and 3 XL

Xiaomi:
Pocophone F1
Redmi Note 5
Mi 6X
Possibly other models

Smartphones brands that do not support this feature for the time being:
Apple
HTC
OnePlus