Good news ,everybody !
Feasycom FSC-BT836 module just upgrade to bluetooth 5 recently .
And this new features have highly changed the transmission speed of module .
Andrid cellphone can up to 80KB/S via SPP .iPhone cellphone up to 18-80KB/S via GATT.
FSC-BT836 : Bluetooth 5 Dual Mode
High Speed :Android: up to 80KB/S(SPP),iPhone: 18-80KB/S(GATT)
For more details ,feel free to Contact Feasycom .