Just over 16 hours on a single 5,000mAh charge: that is what the JisuLife Life10 S, a CDN $25 handheld fan available at Costco and $32.99 through Amazon, delivered at half power in field testing across baseball games, concerts, and hikes. Dyson's HushJet Mini Cool, priced at $99.99 and the company's first personal handheld fan, lasted just over one hour at full power in the same testing period; Dyson estimates a ceiling of six hours at the lowest setting.
Battery numbers, reconciled
At half power, which the reviewer found sufficient for cooling on the hottest days, the Life10 S ran just over 16 hours. Dyson's own projection for the HushJet Mini Cool at lowest speed is six hours. Those are not directly comparable conditions. Even granting Dyson its best-case estimate, the Life10 S ran for more than two and a half times as long in real-world use.
At full power, the HushJet Mini Cool died after just over one hour in testing.
Product comparison: price versus runtime
| Product | Price | Low or half-power runtime | Full-power runtime |
|---|---|---|---|
| JisuLife Life10 S | CDN $25 (Costco) / $32.99 (Amazon) | 16+ hrs at half power (tested) | Not reported |
| Dyson HushJet Mini Cool | $99.99 | Up to 6 hrs at lowest (Dyson estimate) | Just over 1 hr (tested) |
| Shark ChillPill | $149.99 | Up to 11 hrs at lowest (SharkNinja estimate) | 1.5 hrs (SharkNinja estimate) |
The Shark ChillPill, not tested in this review, pairs a fan with a metal cooling plate that SharkNinja claims lowers skin temperature by up to 16 degrees Fahrenheit in seconds. SharkNinja puts its full-power runtime at one and a half hours.
What the Dyson premium actually buys
At its highest setting, the HushJet Mini Cool outperforms the Life10 S on raw airflow. That is the one category where the $99.99 device wins outright. The cost is noise: even at its lowest speed, the Dyson produces a high-pitched whine consistent with the acoustic signature of its vacuum line. The JisuLife runs at a lower frequency and proved tolerable for hours when held close to the face.
The Life10 S is otherwise a minimal product. A sliding switch on the back prevents accidental activation in a bag. One button cycles through five speeds. An LCD reads out remaining battery charge and current speed at startup. JisuLife, a Chinese hardware company with roughly a decade in personal fans, prices more advanced models close to $100, with features including reverse-charging for phones and 100 speed settings.
The reviewer is already watching for sales on other JisuLife models, including a hands-free neck version. The Life10 S units purchased at Costco this summer remain the first item packed for outdoor activities.