Compare Amazon vs Walmart vs Target vs Best Buy
Find the best deals by comparing prices across America's top retailers β all in one place.
US price coverage
Building your retailer comparison
Weβre checking current offers, stock signals, and savings across Amazon, Walmart, Target, and Best Buy.
How does US price comparison work?
Real-time Prices
We fetch the latest prices from Amazon, Walmart, Target, and Best Buy multiple times daily to ensure accuracy.
Save Money
Compare prices across retailers and never overpay. We highlight the lowest price and show MSRP savings so you can save instantly.
Stock Status
See in-stock availability at each retailer. We show Prime eligibility, store pickup, and free shipping options.
How ranking works
Ranking Logic
Price Comparison
Availability Checks
Merchant Selection
BuyWhere shows all ranked offers so your agent can make the decision that fits your priorities.
Proof of Reliability
Metrics based on rolling 30-day window across all API requests. Updated daily.
Why not scraping?
Scraping works for demos. It breaks in production β sites change layouts, add captchas, block IPs, and require constant maintenance. BuyWhere replaces fragile scrapers with direct data partnerships that stay reliable as your agent scales.
| Dimension | Scraping | BuyWhere |
|---|---|---|
| Data structure | HTML parsing, fragile DOM dependencies | Normalized JSON, consistent schema |
| Maintenance | High β site changes break scrapers | Low β partner APIs are stable |
| Reliability | Unpredictable β blocks, captchas, rate limits | 99.9% uptime SLA, no blocks |
| Freshness | Best-effort, often stale | Multiple daily refreshes, sub-24h window |
| Scalability | Breaks under scale, requires proxies | Built for agent-scale query volumes |
| Latency | Variable β 500ms to 5s+ | Predictable β P50 120ms, P95 210ms |
| Legal risk | Terms violations, potential legal exposure | Licensed data partnerships, compliant |
| Agent integration | Requires custom parsing logic per site | Tools-ready MCP interface, drop-in |
BuyWhere maintains data partnerships so your agents never have to debug a broken scraper.