It’s summer. You are sweaty. There’s some unprecedented heat wave that’s even worse than the last unprecedented heat wave. You are uncomfortable. You’re getting sweatier by the second. What do you do?

This predicament — one that’s becoming more and more common — just flat out sucks. But if you have a handheld mini fan on you, the situation can change from “actively horrific” to “less than ideal.” In sweaty circumstances, that’s a miracle.

Over the last few summers, I’ve bought a handful of random mini fans on Amazon or TikTok Shop. While those $10 to $15 devices have become staples in my summer purse, I noticed that premium brands like Shark and Dyson were rolling out their own handheld fans at much higher price points ($100 to $150). As someone who suffers from the SSRI sweats — if you know, you know — I was curious whether these higher-end products are really that much better than the drop-shipped fans I’d bought in summers past.

The verdict is: they’re all pretty good in their own way! But the best one for you depends on your budget, the size of your go-to summer bag (or pockets), and your tolerance for drawing attention to yourself with a large device blowing air in your face.

Most powerful: Dyson HushJet ($99)

I wasn’t surprised to find that the Dyson HushJet is an exceptionally powerful mini fan — this company is best known for vacuums, air purifiers, and hair dryers. Dyson knows how to make stuff that blows air! But at about 7 inches tall, the HushJet is the tallest and heaviest device I tried. It will still fit in most purses, but it’s not pocketable.

The HushJet comes with a travel bag, a charging/desktop stand, a neck lanyard, and a USB-C charger (all of these fans charge via USB-C — woohoo!).

If my desk weren’t directly below an air vent, I could see myself using this while I work, since it functions so well on a desktop. The neck lanyard looks a little dorky, and I imagined myself wearing it while pushing a stroller at Disney World. This is an odd image, since I don’t have children, but maybe the reason I envisioned a hot day out with kids is because the lanyard frees up your hands? Or, maybe it’s because if I had to give one of these devices to a kid and bet they wouldn’t break it, I’d say the Dyson is the most kid-proof? Unfortunately, the lanyard doesn’t really help the fan blow air at you while you wear it — you still have to pick it up to direct it at your face.

The HushJet is more powerful than any other mini fan I tried, but that power comes with some noise. Luckily, it has five different power settings, and the lower ones are quieter.

Most versatile: Shark ChillPill ($149)

The Shark ChillPill is the most expensive fan of the bunch, but to be fair, it also does the most. The ChillPill comes with three attachments: a fan, a water mister, and a cooling plate that you touch to your wrist or temple to help you cool down. Like the Dyson HushJet, the ChillPill can sit up on its own for desktop use. It’s about 4 inches long and about double the width of the other options because of its dual-cylinder design.

I chose to bring the ChillPill with me to a softball tournament, since I knew I’d already be sweaty enough that a mister would benefit me without making me look unnecessarily damp (there is no universe in which I would not appear damp at an all-day outdoor event in the summer).

You just have to pour a tiny bit of water into the attachment and it works great. The cooling plate is interesting, but I personally found the fan more immediately effective — plus, it has ten speeds!

I might be more inspired to bring the ChillPill with me in my bag if it came with a case for all of its accessories — I wasn’t really sure what to do with the extra little components. I mostly used the ChillPill with its fan attachment, but I was impressed by the product design when it comes to changing out attachments. There’s a locking mechanism, which you toggle when you want to remove or add a new attachment. It feels secure enough that it would be pretty difficult for an attachment to accidentally fall off or something.

I understand why the ChillPill is as wide as it is — there’s probably a lot of technical components in there that make the 3-in-1 design possible. The design works for outdoor events like music festivals, sports games, or beach days, but I prefer smaller fans for other circumstances, like when you’re the only one at the bar who thinks it’s a little hot inside, and you feel weird about that.

Good enough: JISULIFE 3-in-1 Portable Fan ($13)

The JISULIFE 3-in-1 Portable Fan was the first mini fan I ever bought, and it’s served me well for the last three years — it still works just as good as new. I’ve taken it on vacations without AC and found it endlessly valuable. It has a flashlight, though not one that’s any better than your phone flashlight, and a USB plug-in to charge your phone. Of all the fans I tested, the JISULIFE is the weakest (though still decent), and it can be kind of annoying to flip open. Then again, it has little bear ears on it. Does Dyson randomly put little bear ears on its fans? I didn’t think so.

This product isn’t going to knock your socks off. The charging is slow, yet effective. The fan is fine. The light is kind of dim. But it gets the job done well enough that it’s accompanied me on a few “glamping” trips and a trip to Paris during a heat wave. Sure, those trips all took place before I had tried any of these other fans, but I wasn’t sitting around thinking, “Gee, I sure wish I had a better fan.” (Rather, I was reflecting on how the most American thing about me is that I love AC.)

The fan is about 4.5 inches when folded, and about 8 inches when using the fan.

Best overall: This random fan from Amazon ($15)

While over $250 worth of review unit mini fans sat at home, I couldn’t stop reaching for this random MACMORE fan from Amazon when I went out. It’s definitely some sort of sketchy drop-shipping situation — the images on the listing all look very obviously edited. The company, MACMORE, only lists two products (both mini fans) on Amazon. But what can I say? I love this little thing. I even bedazzled it. (Bedazzling kit sold separately, but highly recommended to maximize whimsy.)

At 4 inches tall, this fan is both the smallest and lightest one I tried. It’s not as strong as the Shark or Dyson fans, but it works well enough that I’m not wishing the fan were stronger. It comes with a removable clip, so you can attach it to your shirt or the strap of a crossbody bag to keep cool, hands-free. Like every other fan, it makes some sound, but it’s small and quiet enough that I don’t feel like I’m drawing attention to myself when I use it in public.

When it comes down to it, the size (and low price) is probably what makes me love this fan so much. It takes up less space in my purse than my keys, and it fits in a pocket too, so it’s become a staple. But really, this all comes down to personal preference. I’m optimizing for discretion, but maybe you’ll choose to optimize for a fan with the most features or that has little bear ears on it.

When I started at Spectrum 25 years ago, a senior editor suggested that I find a “rabbi,” by which he meant someone who could mentor me in how EEs approach problems and evaluate potential solutions.

I didn’t find one right away. Then in 2005 we decided to do a special report, focusing on the challenges of enterprise software development. I suggested we invite IEEE Life Senior Member Robert N. Charette, a self-described risk ecologist, prolific book author, and leading authority on risk management and software engineering, to explore in our pages the myriad reasons software projects fail. His seminal article “Why Software Fails” is still read in university engineering classes today.

IEEE Life Senior Member Robert N. Charette is one of IEEE Spectrum’s most prolific authors.Robert N. Charette

It was, as they say, the beginning of a beautiful friendship. I had found my rabbi, one who shared my love of writing. We settled into a rhythm that would last more than 20 years, talking on Friday mornings about a range of topics including the growing ubiquity of software in our lives.

So when I became Spectrum’s website editor in 2007, he was the first contributor I tapped to start a regular blog (remember those?). The Risk Factor was born and over the course of more than 10 years and 1,750 posts, Bob chronicled hundreds of software debacles, culminating in “Lessons From a Decade of IT Failures,” which won a Jesse H. Neal Award for Best Infographics in 2016. Ironically, yet predictably, those infographics were created in a software package that is no longer supported and thus are lost to the bits of time.

“I like the expression on the fish just before it’s going to be swallowed by the heron.”Robert N. Charette

Bob, however, was not a one-trick pony. In between his full-time job running his two management consultancies and raising a future biochemist and a future civil engineer, his daughters Maura and Megan, he also wrote many deeply reported and insightful articles. These include last year’s “The Doctor Will See Your Electronic Health Record Now,” the eye-opening 12-part series and e-book The EV Transition Explained, and my personal favorite “Automated to Death,” about the deadly consequences of the automation paradox as manifested by the cyberphysical systems that pilot planes, trains, and automobiles.

“The young bald eagle I photographed in September 2024 had bands that I could read which identified it as a female born in May 2024, near Lexington Park, St. Mary’s County, Maryland, about 65 miles away from where I live.”Robert N. Charette

His main goal all along has been to make software visible, as he told me one Friday in July. “Software is all around us, but we don’t recognize it at all,” he said. “I really wanted my stories to help people better understand complex software systems. You can’t see software, you can’t touch it, you can’t taste it. You may feel the consequences of software failure, but you never see the reason itself.”

When he told me that he was hanging up his hat as a contributing editor to focus on nature photography and to write a handful of fictional trilogies, including one entitled “The STEM Murders” featuring an engineer-turned-detective and his rabbi, I asked him which of his Spectrum articles had the biggest impact.

“The hummingbird I caught with the yellow of a road curb behind it.”Robert N. Charette

He singled out the 2013 feature “The STEM Crisis Is a Myth.” “Spectrum gave me a platform to question the assumption that we needed more STEM graduates. Until then, people didn’t really realize how much of the STEM crisis was a mythology that was perpetuated by employers and the academic community and was foisted on the IEEE community,” he said.

Charette made a career of questioning assumptions. The best way to mitigate risk, he told me as our Friday chat drew to a close, is to be careful making assumptions in the first place. “My main risk maxim is assumptions made are risks accepted.”

Meta says artificial intelligence is beginning to shorten the distance between a product idea and a working application.

During the company’s latest earnings call, CEO Mark Zuckerberg said AI is accelerating software development across Meta and could allow its engineers to create and test more consumer apps. He cited several recent launches, although the company did not quantify the productivity gains or explain which AI development tools its teams are using.

For software leaders, Meta’s experience offers an early glimpse of how AI could change development cycles and team output—but it leaves open important questions about code quality, security, and the amount of human oversight still required.

Zuckerberg cited Instagram Instants, Forum, and the recently launched Seller as examples of Meta’s renewed push to build more consumer apps. However, he did not specify how extensively AI was used to develop each product.

According to TechCrunch, Meta is also developing an AI bedtime-story reader and a prediction-market app. The company has made several previous attempts to expand its consumer app portfolio, although most failed to gain lasting traction. Threads, which recently reached 500 million monthly users, is a notable exception.

Investors want proof; Zuckerberg is giving them one

Meta has committed substantial funding to AI infrastructure, including new data centers and computing capacity. Investors are increasingly asking when that spending will produce measurable business returns.

Zuckerberg presented faster software development as one early benefit. If AI allows Meta’s engineers to build and test products with less manual work, the company could experiment with more ideas without increasing development costs at the same rate.

However, Meta has not disclosed how much development time AI has saved, whether it has reduced staffing requirements, or how the company measures the quality and security of AI-assisted code. Without those details, its experience is better viewed as an early indicator than a proven model for other enterprises.

More must-read AI coverage

The new measurement of speed: AI

For years, software companies competed on features and user growth. Increasingly, they may also compete on something less visible: how quickly they can turn an idea into a finished product.

Meta’s claims reflect a broader change in software engineering as AI tools move beyond code completion and take on larger portions of development, testing, and debugging.

However, faster output is only one measure of success. Technology leaders will also need to determine whether AI-assisted development lowers costs without introducing security flaws, maintenance burdens, or poor-quality software. Until Meta releases measurable results, its experience offers a signal of where software development may be heading—not proof that AI has solved its productivity challenges.

Also read: Meta Launches Free Facebook Verification Badge for Personal Accounts.