Please suggest me the best ways to transfer data from nrf52840 to androidhttps://devzone.nordicsemi.com/f/nordic-q-a/60169/please-suggest-me-the-best-ways-to-transfer-data-from-nrf52840-to-androidHi, We have an embedded flash of 4Gbit which stores sensor data. The data needs to be transferred to a Smartphone. Now we are using USB cdc acm for transferring data with an OTG cable and USB cable. But it is taking from 30 minutes to 1.5 hours dependingen-USTelligent Community 13Wed, 15 Apr 2020 03:55:38 GMTRE: Please suggest me the best ways to transfer data from nrf52840 to androidhttps://devzone.nordicsemi.com/thread/244580?ContentTypeID=1Wed, 15 Apr 2020 03:55:38 GMT137ad170-7792-4731-bb38-c0d22fbe4515:890c8380-93f8-4ae3-b337-18483b911e08Vishnu Pradeep<p>But I am getting less than 100KBps for the USB now. So if both USB and BLE is giving almost similar speed I thought of switching to BLE to save some BOM cost</p><div style="clear:both;"></div>RE: Please suggest me the best ways to transfer data from nrf52840 to androidhttps://devzone.nordicsemi.com/thread/244505?ContentTypeID=1Tue, 14 Apr 2020 15:22:33 GMT137ad170-7792-4731-bb38-c0d22fbe4515:63dd9a0b-ada6-46fa-bb6f-11f169f15c8bBulhar<p>Hi, in general, BLE will be much slower than USB. Better way could be bluetooth classic, but it is still slower than USB. The BLE is targeting to applications where small pieces of data are transferer.&nbsp;Theoretical max speed is 2 Mbps (BLE 5.0). I guess&nbsp;USB is the fastest way for connection with smart phone. If you&nbsp; require wireless interconnection try think about wifi.&nbsp;</p><div style="clear:both;"></div>