Have you tried both q35 and q45? Is there a big difference?
Sorry, I've only tried the Q45. I connected them right away the first evening to my HiBy R3 Pro Saber, and they sounded great, though not as great as a wired connection, as expected. HOW-ever, late in the evening I downloaded the app on my Samsung phone and while the software worked fine, the LDAC procedure/selection/setting specifically, would not work. Yesterday noon I called Soundcore support in California, and after some research, they confirmed that the devices were incompatible. Thus, I will be returning the Q45s; and because Soundcore said the Q35's LDAC would not work either, I am very reluctant to even open the Q35 package,
While I only tried the Q45s for a few hours, I was definitely impressed and was very disappointed to learn of the LDAC incompatibility with my player, which as I had noted, was my main requirement, since otherwise, I'll just connect wired which I've loved with the HiBy. In fact, I had decided by the second hour that I was fully (prematurely) satisfied with the Q45s, and probably would not even need to open the Q35s. The ONLY "buts" I had with the Q45 was that the volume they reproduced required me to raise the volume on my player to its highest levels to optimize the sound, particularly for my favorite test albums/tracks/sections. I tried a wired connection with the Q45 and that also was excellent. including its volume capacity. The other "but" was minor and that was that the voice notes (this or that engaged, this or that setting) from the Q45 were barely audible -at least with music playing. I had a limited need for that feature, and neither of these two limitations would have discouraged me from keeping the Q45s had LDAC worked and impressed me.
BTW, even well into my eighth decade, I have excellent hearing, thankfully; in part because I make it a point to resist HIGH volumes, or to never do it for longer than a moment, or two, or three. I've also avoided/resisted it in live settings.
BTW2, the HiBY is my only LDAC-equipped device so I could not extend my testing even before calling Soundcore.
BTW3, Soundcore now-RARE telephone support (at least in the US, or at the US number) is a GREAT reason to try/use their products.
Sorry, again, that I cannot answer your compare question.