TOZO T18 is the better overall pick for most buyers in this matchup. It scores higher overall and is stronger where budget earbuds often fall short: stable connectivity, easy setup, and long battery life. The added app features (including translation modes) can also be genuinely useful for some users.
TOZO T12 is still worth choosing when your priority is audio scoring and sound tuning, and it looks safer on build/durability scoring. The main reason to hesitate is the more mixed feedback around fit, connectivity, and longer-term reliability. If you can confirm comfort and connection stability during your return window, the T12 can be a satisfying sound-first budget option; otherwise, the T18 is the more straightforward, convenience-led choice.