Wattage is described as 'Application designed for monitoring the health and status of your power devices. It displays quick data regarding battery capacity, energy metrics, and device information through a clean, modern GTK 4 + libadwaita interface' and is a system information utility in the os & utilities category. There are more than 25 alternatives to Wattage for a variety of platforms, including Windows, Linux, Flathub, Mac and Flatpak apps. The best Wattage alternative is Rainmeter, which is both free and Open Source. Other great apps like Wattage are HWiNFO (32/64), Open Hardware Monitor, Libre Hardware Monitor and SpeedFan.