How DuelVS handles data

1. Where data comes from

• Official manufacturer specifications: product pages and datasheets are the primary source.
• Technical documentation: white papers, spec sheets and official announcements.
• Verified reviews: cross‑referenced against reputable tech review sites.
• Product databases: industry‑standard databases with verified information.

2. Verification

1. Source validation: the data comes from a reliable source.
2. Cross‑reference: values are compared across sources for consistency.
3. Unit standardization: every measurement is converted to one unit.
4. Format normalization: values follow one format per field.
5. Quality review: flagged or unusual values are reviewed manually.

3. Normalization, with real examples

Normalization is what makes rows line up. In this redesign it’s also visible:

4. How comparisons work

Like with like. Comparisons are limited to one category. You can’t compare a phone with a laptop, because they don’t share fields. Every product in a category is described with the same field schema, so any two or three line up row for row.

Comprehensive, then focused. All available specs are shown. “Differences only” hides identical rows, and “Focus” reorders rows by topic. Neither one scores products.

5. Differences vs “better”

DuelVS’s methodology notes that some metrics are better when lower (weight, price) and others when higher (battery capacity). Many aren’t that simple. A larger card isn’t better, a higher TDP isn’t better, and a bigger screen depends on the buyer. So:

• Every row highlights a difference and states it plainly (“15 g lighter”, “+308 mAh”).
• A direction label appears only on fields where a preferred direction is defensible. Here’s the full list:

Every other field is shown as a difference with no winner. There’s no overall score.

6. How rankings work

Rankings sort products by one objective, measurable metric: battery capacity (mAh), RAM (GB), storage (GB), screen size, resolution, or benchmarks. They sort in the direction that fits the metric. Product pages show where a device sits in its category, for example “#1,024 of 1,439 by battery capacity”.

7. Generated FAQs

FAQs are generated from the data: the metrics with meaningful differences, category context, ranking position, and notable yes/no features. In this redesign every answer quotes the values it’s based on, and the same text appears on the page and in structured data.

8. Errors & corrections

DuelVS aims for 100% accuracy, but mistakes can happen. If you find an incorrect value, tell us and it will be corrected. New products are added shortly after announcement, specs are updated when manufacturers publish corrections, discontinued products stay for reference, and rankings recalculate automatically as products are added.

9. No paid placement

DuelVS does not accept payment to influence rankings, comparisons or product visibility. Products are presented on their specifications alone.

10. Limitations

Specs don’t tell the whole story. Software, build quality, support and ecosystem all matter. Use DuelVS to understand the differences, then read detailed reviews for the things a spec sheet can’t measure.