
Both are flawed
I got both the M12HD and M12S and both have essential flaws.
- The M12HD uses Switch 1 joy-con connectivity so connection are slow and disconnect sometimes. And it can only charge when the screen is on.
- The M12S on the other hand uses Switch 2 connectivity so it's much easier to pair. But boy oh boy, the rumble is so bad. I can only play when I turn the rumble off. It's so loud and vibrates way too strong. It's like those cheaper third-party joycons like Aolion.
Overall, the M12HD still offers a better playing experience. You only appreciate HD Rumble when you don't have it. But this is far from what I expected from Mobapad, especially with the excellent M6HD.
The M12S retro colour is very nice though.
Let's hope they have a better fix in the future