These three get compared as if they are competing for the same job. They are not. Picking well is mostly a question of where you are and what your hands are doing.
Desk fan
Moves the most air by a wide margin, because it is the biggest and usually runs off mains power. If you are stationary, near an outlet, and want the strongest airflow for the least money, this is the right answer and nothing else comes close.
It stops being the answer the moment you move. It cools a position, not a person.
Handheld fan
Portable, cheap, and you can aim it exactly where you want it — which genuinely matters when what you want is air on your face right now.
The cost is a hand. That rules it out for most of the moments you are hottest: carrying something, using a tool, gardening, holding a rail. It is best for short bursts while standing or sitting still.
Wearable fan
Clips to a belt, a waistband, a backpack strap or a shirt edge and keeps running while you do something else. Less airflow than a desk fan, roughly comparable to a good handheld, but it costs you nothing to keep using it.
It suits moving around, away from power, with your hands occupied — outdoor work, walking, travelling, camping, gardening. Outside that, one of the other two is probably better.
A rough decision
- Sitting still near an outlet → desk fan.
- Short bursts, hands free anyway → handheld.
- Moving, hands busy, no outlet → wearable.
- Need to cool a room → none of these. You want a ceiling fan, a pedestal fan or air conditioning.
The thing all three share
None of them lowers the air temperature. They move air across your skin so sweat evaporates faster, which is what makes you feel cooler. That means all three work best when you are actually warm and sweating, and all three feel less effective in very humid air.
If the wearable category is the one that matches your day, VORAIR Flow clips four ways and runs three speeds from a single button. If one of the other two fits you better, buy that instead.