Evaluate the maximum working connection to a BLE central (Dongle or cellphone)

Question

Hi, 
 Currently, we have a device that uses the nrf52832 custom board as a Peripheral notify to send the data collected to Pixal 5 (central), 
 We have a cellphone app to call the data received by the mobile phone to show that at present, 
 we need to evaluate how many peripherals can be connected to a central and can also operate normally. 
 I would like to ask how to evaluate and compare Pixal 5 and nrf 52840 dongle as BLE central. 
 What about the maximum number of connections in operation? 
 
 At present, a peripheral will transmit(MTU) 200 bytes of data 10 times per second, 10 sets (2000 bytes) of data will be 2 Kbytes,

Einar Thorsrud · Accepted Answer

TTN said: The device's system is android, so should i use BlueZ and program a host on the nRF52840 dongle? 
 There is some support for BlueZ on Android, but I am not sure how well it works. If you get that working, then you program a Bluetooth controller on the nRF. For instance Bluetooth: HCI UART if you use UART between the Linux host and the nRF Controller.

Evaluate the maximum working connection to a BLE central (Dongle or cellphone)

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