How to Use AI to Compare Prices or Products

What you will learn

In this guide, you will learn how to use AI to compare products and prices before making a purchase. AI can help you understand the differences between products, list pros and cons, and narrow down your choices. However, it does not have real-time price data, so you must always check prices on actual store websites.

Important: AI does not have real-time price data. Always check the actual store website before buying anything.

What you need

• A computer, tablet, or smartphone with internet access
• A free ChatGPT account at chat.openai.com
• Access to online stores for price verification

Step-by-step instructions

Step 1: Describe what you want to buy

Open ChatGPT and describe what you are looking for. Be specific about your needs and budget:

• “I want to buy a tablet for reading and video calls. My budget is under 300 euros. What are my best options?”
• “I need a simple smartphone for my mother who is 75. She only needs to make calls, send messages, and take photos. What do you recommend?”
• “Compare the Samsung Galaxy A15 and the Xiaomi Redmi Note 13 for someone who mainly uses WhatsApp and email”

Step 2: Ask for a comparison with pros and cons

Once AI suggests some options, ask for a detailed comparison:

• “Compare those three tablets. List the pros and cons of each.”
• “Which of those phones has the biggest screen and easiest interface for a senior?”
• “Put the comparison in a simple table format”

ChatGPT will organize the information so you can see the differences clearly.

Step 3: Ask specific questions about features

If you are unsure about certain features, ask:

• “What does RAM mean and how much do I need for basic use?”
• “Is 64GB of storage enough for photos and apps?”
• “Does this phone work with hearing aids?”
• “Which one has a better camera in good light?”

ChatGPT will explain technical terms in plain language.

Step 4: Ask about where to buy

You can ask ChatGPT for general buying advice:

• “Where can I buy this phone in Portugal?”
• “Is it usually cheaper to buy online or in a store?”
• “What should I check before buying a refurbished phone?”

Remember that AI cannot check current stock or current promotions.

Step 5: Verify prices on real store websites

Before making any purchase, go to real store websites to check:

• The current price (it may be different from what AI said)
• Whether the product is in stock
• Shipping costs and delivery time
• Return and warranty policies
• Real customer reviews

Good places to check include Amazon, the manufacturer’s website, and your local electronics store’s website.

Tips

• Use AI for understanding, stores for buying. AI is great at explaining differences between products. Actual stores have the real prices.
• Ask AI to explain jargon. If a product listing has technical terms you do not understand, paste them into ChatGPT and ask “What does this mean in simple terms?”
• Check multiple sources. Do not rely on AI alone. Read reviews from real users on Amazon, specialized review websites, or consumer organizations.
• Be wary of AI brand preferences. AI may recommend certain brands more than others simply because they appear more often in its training data, not because they are better.