Waveshare Industrial 8-Channel ESP32-S3 WiFi Relay Module Onboard Isolated RS485 vs Waveshare CM4-IO-BASE-BOX-B + USB HDMI Adapter for Raspberry Pi CM4
Waveshare Industrial 8-Channel ESP32-S3 WiFi Relay Module Onboard Isolated RS485 and Waveshare CM4-IO-BASE-BOX-B + USB HDMI Adapter for Raspberry Pi CM4 are compared below on the data published by their sellers — price converted to euros, stock, and every specification either seller discloses. On price, Waveshare Industrial 8-Channel ESP32-S3 WiFi Relay Module Onboard Isolated RS485 is €2.99 cheaper ($61.76).
| Criterion |  Waveshare Industrial 8-Channel ESP32-S3 WiFi Relay Module Onboard Isolated RS485 |  Waveshare CM4-IO-BASE-BOX-B + USB HDMI Adapter for Raspberry Pi CM4 |
|---|---|---|
| Price | $61.76Best value | $65.24Least favorable value |
| Seller | eBay | eBay |
| Availability | In stock | In stock |
| Rating | — | — |
| View at seller ↗ | View at seller ↗ |
Specifications are extracted automatically from seller data — an empty cell means the seller does not publish that value, not that the product lacks it.
Robotitem does not test products. This comparison reports seller-published data only, and ranking never takes affiliate commission into account.