: You would likely need an intermediary storage battery, and even then, it would not gather enough energy to reliably charge a modern smartphone. DIY Alternatives Most enthusiasts create their own using standard parts: Hamster Wheel - Amazon.com

: Firms like Engineered Artworks create high-end, human-sized hamster wheels designed for interactive museum exhibits or promotional stunts, such as powering light installations or small machines Educational Playground Equipment : Products like the EnergyWheel from EnergiLeg

: For event-scale energy generation, companies like Alibaba offer large-scale inflatable wheels that can be adapted to generate power for events or advertising.

Buying a pre-made generator for a standard pet hamster is difficult because a single hamster typically only produces about of power. Experts note that a hamster wheel generator would be:

True "hamster-powered" generators are not standard consumer products found in typical pet stores or electronics retailers. Most functional units are either custom DIY projects or larger human-sized interactive exhibits.

, which use the same rotating principle to charge 5V–24V batteries.

are designed for schools and playgrounds, allowing children to run and generate enough power to charge phones or play music.

: While not for hamsters, similar low-speed "wheel" technology exists in the form of Hydroelectric Water Turbine Generators