Before you buy any dePIN hardware, run the numbers. Use the ROI Calculator to model your specific hardware cost, electricity rate, and expected uptime. A positive projected return at current token price is a necessary but not sufficient condition for buying hardware. You also need to assess secondary market value, protocol risk, and how emissions affect long-term yield.

Grass and similar bandwidth networks require only an existing PC and internet connection. Hardware cost is zero; incremental electricity is minimal. These are the safest entry points for testing dePIN economics without capital commitment. Yields are modest but the learning value is high.

Storage networks like Storj run on any spare HDD or NAS device. GPU compute networks like Render run on consumer RTX cards that retain value in the gaming market. If the protocol fails, the hardware sells. This commodity-hardware tier offers the best risk-adjusted entry into active node operation.

The Helium Hotspot ($299), Hivemapper Dashcam ($549), and WeatherXM Station ($349) are purpose-built devices with limited alternative utility. Model these as zero-recovery assets in your downside scenarios — if the protocol shuts down, assume the hardware is worthless. Only buy if your projected return pays back hardware cost within 18 months at current prices.