TOZO T20 is the better overall buy in this matchup. It scores higher overall and delivers a stronger combination of battery life, comfort-focused design, value, and warranty/support. For most people shopping in the budget earbud category—commutes, workouts, and everyday listening—the T20 is the safer, more balanced choice.
TOZO T12 still makes sense if your main goal is sound personalization. Its app experience is more prominently featured (32 EQ presets + custom EQ), and it rates higher for audio quality. If you’re confident about fit and you prioritize tuning flexibility over support and consistency, the T12 can be the better match.