transferring data from an iphone 6 to iphone 7+

LizandGlenn1012 wrote:

How long should the transfer of limited data take from phone to phone?

Will there be an alert is something is not working?

Transfer data from your previous iOS or iPadOS device to your new iPhone, iPad, or iPod touch - Apple Support

How are you doing it? As far as I know, the only direct way now is via Quick Start, and Bluetooth isn't the fastest way to transfer data.