Everything you need to know about how Comparador Smart works: prices, AI Score, alerts, coupons and security.
Is Comparador Smart trustworthy?
Yes. Comparador Smart is a free price-comparison site: it does not sell anything directly. Prices are fetched from stores (KaBuM, Amazon, Magalu, Shopee, Mercado Livre and others) and the buy buttons take you to the official store, where the purchase is completed with the store's own security.
How are prices updated?
The site's automation checks the stores every day and updates the lowest price found. Expired coupons are removed automatically. Since prices change fast, always confirm the final amount on the store's page before paying.
What does the AI Score (0 to 100) mean?
It is a score computed by the site's artificial intelligence considering value for money, processor, memory, display, camera and battery. A high score means the phone delivers a lot for its price — not necessarily that it is the most powerful on the market.
How does the price alert work?
Tap 🔔 Price alert on the phone's page, choose the desired value and the site starts monitoring. When the price reaches your target, it gets highlighted in your alerts list. To remove an alert, tap it and confirm the removal.
How does the Price-drop radar work?
The Price-drop radar compares each model's current price with the highest price recorded in the last 30 days. When it finds a big drop, it shows the discount percentage and which store the price dropped at.
How do I use the coupons shown on the site?
Copy the coupon code, tap the store button and, when checking out, paste the code into the coupon/voucher field of the store's cart. If the coupon doesn't work, it may have expired or require a minimum order — the site removes expired coupons daily.
Why is the price on the store's site different?
Stores change prices several times a day and some amounts depend on coupon, stock or payment method (PIX usually has an extra discount). The comparator shows the best price found in the last check.
Does the site earn anything from my purchases?
The site uses affiliate links: if you buy something after clicking a store button, the store pays Comparador Smart a small commission, at no extra cost to you. That is what keeps the site free.
Are all listed phones on sale in Brazil?
The catalog prioritizes models officially sold in Brazil. Cancelled or not-yet-launched models are automatically blocked and do not appear in the comparison.
Can I ask the chat to compare models?
Yes. Use the AI chat for questions like “best phone up to R$ 2,000”, “iPhone 13 vs Galaxy S24” or “phone with the best battery”. The AI answers instantly using the catalog and the day's prices.