Uploaded December 2025 | Updated September 2026, 1 week ago

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Most of these devices allowed me to input the price of electricity, and all of them had very similar numbers for the amount of electricity used. The big differences were price and features. Here are links to the specific products:

Kill A Watt P3 P4400 - amzn.to/4aeixDx
Kill A Watt EZ P4460 - amzn.to/48CAWIY
Generic Watt Meter ($12) - amzn.to/4iZJRba
Generic Watt Meter ($10) - amzn.to/48Aj817
TP-Link 𝗧𝗮𝗽𝗼 Smart Plug Wi-Fi Mini (4 pk) - amzn.to/4rS0V6T