Never looked into it. I use a huawei mate 20 lite. I chose the lite because it has a headphone jack
. I guess it has tws plus because I can put each ear phone away individually and power off and the other keeps playing. Both left and right, and I have only 1 pairing. None of my others do this. I haven't checked for multipoint connectivity however.
Unfortunately "True" TWS+ is dependent on the type of processor used (specifically the Snapdragon series starting from 845 and beyond) AND software/firmware/ROM implementation.
And specifically, it will (or at least "should") show BOTH headphones being connected at the same time (with a "primary" designated) through the Bluetooth settings page, with APT-X TWS+ being selected as the codec. This happens with my Creative Outlier Airs on my OP6 with SD 845 + Android 10 (note that the COAs never connected through TWS+ on the same phone in Android 8, hence "software implementation").
Why? Because unfortunately it's Qualcomm tech and that's how they're playing it (unlike licensing the tech as they've done with Apt-X).
Strangely enough, the only real difference between Master-Slave TWS (my L2P) and "True" TWS+ (my COA) that I've seen is that if the "master/primary" earbud is put back into the case (and turned off), the L2P will pause (requiring a manual re-play to continue) and the COA will drop connection for a second before automatically resuming playback on its own.
If the slave/secondary earbud is put into the case with both my L2P and COAs, nothing happens and playback continues as usual for both.
Oh and battery drain differences (Master-Slave drains the Master more while TWS+ doesn't seem to have much observable difference in drain between the primary/secondary buds). That said, the L2P seems to switch Masters from time-to-time (on its own or possibly with every re-connection, not sure) to mitigate this drain.
As for why my L2Ps aren't doing TWS+, well, it just doesn't for some reason. Which is weirder considering the COAs does it fine.
