Detailed Answer
Quality comparison: both are top domestic brands with equal core indicators: IP67 (Xingjia can do IP68), 10 million key presses, FHSS anti-interference, wide temperature range, 100% aging tests. Differences: Xingjia has a broader product line (11 series), while LDER focuses on refining its SK/DK series (8 models). Both are reliable; choose based on your needs.
| Equal | IP67/10M presses |
| Xingjia | Full product line |
| LDER | Focused series |
Note:Both are reliable; pick features by scenario.