OUR PROCESS
Review Methodology
Last updated: July 31, 2026
This methodology describes how 7ers approaches product and service comparisons, recommendations, and buying guides.
What we evaluate
Criteria vary by category but may include practical usefulness, ease of use, availability, compatibility, quality, transparency, support, total cost, and relevance to international visitors in China.
Research sources
We may review official documentation, manufacturer information, current listings, public policies, independent technical sources, user feedback patterns, and direct observations or testing when available. We distinguish verified facts from estimates and opinion.
Testing and limitations
Not every item is physically tested. When hands-on testing has not occurred, we do not imply that it has. Availability, prices, software features, and seller terms may change after publication, so readers should confirm time-sensitive details before purchase.
How recommendations are selected
We prioritize options that solve a clear reader need and explain meaningful trade-offs. A “best” choice depends on the use case; our guides aim to show who an option suits, where it falls short, and what alternatives deserve consideration.
Commercial relationships
Affiliate commissions or other commercial relationships do not purchase a ranking or positive verdict. Relevant relationships are disclosed, and editorial conclusions remain independent.
Feedback
If you believe a comparison is outdated or a material fact is incorrect, email admin@7ers.win with the article URL and evidence.