Our data: where the WoodRoar chainsaw figures come from

The U.S. Consumer Product Safety Commission publishes the official U.S. recall notices for consumer products, with the products, model numbers and the remedy offered. You can browse them on the CPSC recalls page.

From this source we take one field: the recall notice and its official link, shown on the recalled model. We checked all 288 models in the catalog against it. One recalled model was found, so this source currently covers 1 model out of 288.

To match a model, we first look for a recall that names the model's brand and one of the listing's model codes. That recall is only a candidate. An AI model then reads the recall's own text and keeps it only when it is the same product and the same model, not a neighboring one, a battery or an accessory.

We check the recall list again every month.

Limits: a recall that does not give the model number cannot be matched with certainty, so it is not shown. The absence of a recall notice on a model therefore does not prove that no recall exists.

Each model's manufacturer publishes product pages, datasheets, user manuals and declarations of conformity on its own website, or on its group's. Examples of sites we read include Black+Decker, Oregon, EGO, Husqvarna and Craftsman.

We take these fields from them:

• Battery and charger included
• Battery system
• California sale status
• Chain gauge
• Chain pitch
• Drive link count
• Hand vibration
• Manufacturer warranty length
• Noise level (sound power)

This source covers 22 models out of 288. For each model, we search for its exact model number on the maker's own website. A figure is kept only when our server opens the page again and finds both the model number and that figure on it. Retailers, marketplaces, comparison or review sites and manual-collection sites are never used as a source.

Every model is researched once, and new models are researched as they join the catalog.

Limits: many brands sold mainly on Amazon publish no specification page. Their models keep only what their Amazon listing states.

A model enters the comparison when it reaches a rating of at least 3.5/5 on Amazon with at least 5 customer reviews. Stock is not a criterion. The catalog currently holds 288 models.

Prices come from the product pages on Amazon.com and are updated every 7 days. The date each price was collected is shown next to it. A model without a price is out of stock.

Each model carries at most one badge, computed within its category. Most popular goes to the model with the most customer reviews. Top rated goes to the best rating among the models with at least 100 customer reviews. The rule shows on hover.

In the AI search, you describe what you need in one sentence. An AI model turns it into the comparison's filters, which you see and can remove. It writes no answer and only handles searches about chainsaws.

The quiz asks 5 questions. The models that match at least half of your answers are kept and ranked from best to least match.

You can compare up to 4 models side by side. The best figure in each row is highlighted, and the comparison can be shared with a link. Every filter has a "?" that explains it, and the filters and the sort are written into the page address, which can be shared.

A heart on every product card adds the model to your favorites. The list stays in your browser, and we never receive it.

Links to Amazon are affiliate links: we earn a commission on a purchase, at no extra cost to you. No manufacturer pays to be listed or ranked higher.

If you spot a figure that looks wrong, tell us through the contact page.