Android 手机 最多可连接的BLE设备--。

Android: Limit of simultaneous BLE connections

How many devices we can pair via Bluetooth of BLE to Android?

 

A search of the Android Bluetooth Firmware source shows the following:

Max concurrent active synchronous connections (BTA_GATTC_CONN_MAX):

• 4 on Android 4.3
• 7 on Android 4.4+

Max concurrent active notifications (BTA_GATTC_NOTIF_REG_MAX):

• 4 on Android 4.3
• 7 on Android 4.4
• 15 on Android 5.0+

As a comparison my experience with iOS is that 8 devices can be connected at at time.

I tried connecting more than 7 devices the other day on Android 7.1 and Bluetooth stopped responding. Starting and stopping didn't help; the only thing that fixed it was restarting the device.