How to Compare Products and Prices with Perplexity Before You Buy

The short version

Perplexity turns a dozen review tabs into one table with links. It’s best at the research part of buying: narrowing options, comparing specs and surfacing complaints. The buying decision, and the final price check, are yours.

Step by step

1. Describe the job, not the product. “A vacuum for a two-bedroom apartment with a long-haired dog and hardwood floors.”
2. Give a budget and your must-haves. Perplexity’s own tip: “best noise-cancelling headphones under $200 for commuting”.
3. Ask for a table with a source for each price and spec.
4. Ask about problems. Common complaints, return rates, what owners say after a year.
5. Narrow to two or three and ask follow-ups about the differences that matter to you.
6. Use Deep Research for big purchases. Perplexity says it handles product comparisons, and it reads more sources.
7. Confirm on the seller’s page: current price, warranty, return window, shipping.

Prompts to copy

The comparison:

I need [product] for [use]. Budget: [amount]. Must have: [features]. Nice to have: [features].
Compare the 4 best options in a table: price, key specs, warranty, main complaint.
Cite the manufacturer's page for specs and a review for each complaint.

Check the downsides:

What do owners of [product] complain about most after 6+ months? Use reviews and forums,
and say how common each problem seems.

Total cost:

Compare the total 3-year cost of [product A] and [product B], including running costs,
consumables and subscriptions.

Decide:

Based on all of that, which would you pick for me and why? What would change your answer?

Example

You ask: “Best dishwasher under $900 for a family of 5. Quiet is important; we run it at night.”

A good result: a table of four models with price, noise level in decibels, capacity and a known issue for each, with links to the manufacturers and reviews. You follow up: “Which of these has the best repair record?” and then check the two finalists on the store’s site.

Mistakes to avoid

• No budget. You’ll get the most popular, often the priciest.
• Trusting a spec without the link. Ask for the manufacturer’s page.
• Treating the price as live. It can change by the hour.
• Skipping the complaints question. That’s where the real differences show up.
• Comparing too many at once. Past four or five options, tables get shallow. Narrow first, then go deep.

Good to know

In the US, some product answers show product cards you can buy from directly. See shop with Perplexity. For a major purchase, Max subscribers can use Model Council, which Perplexity suggests for big decisions such as a purchase, to compare several models’ answers.

Related: shop with Perplexity and use Deep Research.