Detailed Answer
After-sales comparison: LDER offers 2-year trade-in replacement (industry feature) plus nationwide service points; Xingjia offers 1–2 year full-unit warranty with optional extended warranty. Trade-in vs extended warranty: trade-in is more convenient (old unit exchanged for a new one), while extended warranty suits long-term use. Both service networks cover the whole country. Choose according to your company's preference.
| LDER | 2-year trade-in |
| Xingjia | Warranty + extended |
| Network | Nationwide both |
Note:Put after-sales terms in the purchase contract.