STEM Bug Zapper Outdoor Bug Killer
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- $49.99 - $79.99reg $92.99 - $148.99 Sale4.8 out of 5 stars with 14 ratings
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Guests are saying
The insect zapper is a compact and portable solution for keeping pesky bugs at bay, making it ideal for both indoor and outdoor use. Guests appreciate its rechargeable battery, which lasts up to 12 hours, and its quiet operation, making it safe for use around children and pets. While it effectively attracts and zaps smaller insects, some guests noted limitations in its effectiveness against larger pests. Overall, it offers a convenient and eco-friendly way to enjoy outdoor spaces without the annoyance of insects.
Summary created by AI from text of reviews reflecting recent feedback provided across different star ratings (includes incentivized reviews)
4.0 out of 5 stars with 587 reviews
25% would recommend
79 recommendations
5 out of 5 stars
Thumbs up graphic, would recommend
9 July, 2026Verified purchase
Small but mighty
Amazing little zapper!! I was concerned about how small it was that it wouldn’t do much, but this really does its job! No noise and you can place it anywhere, with or without a cord. I would buy it again.
1 out of 5 stars
Thumbs down graphic, would not recommend
28 June, 2026Verified purchase
GARBAGE
Super small. Looked like a cheap kids toy with a few lights. Fully charged and lasted a couple of hours before dying. Complete waste of money. Didn’t attract anything. Returned it to the store. Should’ve taken a pic before returning. These 5 star reviews are a lye!!!
1 reply from stem Team team - 12 days ago
We're sorry to hear this! When fully charged, we'd anticipate this to zap those bugs with ease for up to 12 hours. Although you've already returned the product, we'd be happy to chat and learn more about your experience. Feel free to contact us at 877-869-7546 (weekdays, 8 a.m. – 5 p.m. CT) and mention reference number: 23285132. – Megan, STEM Consumer Care
5 out of 5 stars
28 June, 2026
originally posted on stemforbugs
Best ever
I have over 100 plants in one room- this causes fungus gnats.. at one point I couldn’t even sit down and watch TV because they would just be swarming around my face. I got one of your plug-in and one of these to put in my humidity corner. Holy crap after a day or two it was full.! And it doesn’t make a loud noise it’s very small and unobtrusive! Best part is you can put it anywhere because it’s rechargeable love it love it love it love it
4 out of 5 stars
Thumbs up graphic, would recommend
26 June, 2026Verified purchase
(no review title)
Effective
1 out of 5 stars
Thumbs down graphic, would not recommend
13 June, 2026Verified purchase
DO NOT BUY
Waste of Money. I would give this a zero stars. After using for a WEEK every night, and dealing with a swarm of fruit flies from a hidden rotten potato I thought it would have gotten more than the 3…yes 3 fruit flies in a week. This is leaving it in a dark kitchen. Waste of money. Product is a bust and shouldn’t even be on the market. The top stars are paid influencers because there is no way that people have had success with this horrible product.
1 reply from stem Team team - 26 days ago
We're sorry to learn this didn't work well for you, Heather. Know that were here to help you stay one step ahead of bugs and we would like to chat more about what happened. At your convenience, please give our team a call at 877-869-7546 (weekdays between 8 AM and 5 PM CT) and mention reference number: 23272197. – Mindi, STEM Consumer Care
1 out of 5 stars
13 June, 2026
originally posted on stemforbugs
Worthless Product and Waste of Money
I would give it zero stars if I could. Have charged it every day and used it every night for a week and you’d think with my fruit fly nightmare (hidden and lost decaying potato culprit) that I would get at least a few. The only thing this got was dusty. I fully believe the good reviews for this product are by paid influencers. This product is so defective it shouldn’t be on the market.
1 reply from STEM Consumer Care team - 27 days ago
We're sorry to hear this didn't zap away those pesky bugs. If you haven't already, be sure to clean the grid of any dead bugs and debris. Just a quick tip: this product works most efficiently in dark spaces or at night. As this didn't leave behind good vibes, we'd like to help further. Just give our team a ring at 877-869-7546 (weekdays, 8 a.m. – 5 p.m. CT) and mention reference number: 23271161.
1 out of 5 stars
Thumbs down graphic, would not recommend
11 June, 2026Verified purchase
DOESN'T WORK
Does not work at all! Not one bug was attracted or zapped.
1 reply from stem Team team - 28 days ago
We're sorry to hear this, Marta. We'd expect pesky flying insects to be trapped in this unit when used where they commonly hangout. Keep in mind, this is most effective in dark spaces or at night. That said, your satisfaction is important to us and we want to make this right. Give us a ring at 1-877-869-7546 (weekdays, 8 a.m. to 5 p.m. CT) and provide reference number 23269432. – Megan, STEM Consumer Care
1 out of 5 stars
3 June, 2026Verified purchase
(no review title)
Barely holds a charge and literally does nothing
1 reply from stem Team team - 1 month ago
Oh no! We'd expect a fully charged unit to attract and zap flying insects for up to 12 hours, indoors and outdoors. STEM Zapper is most efficient in dark spaces or at night. We'd appreciate the chance to assist you further so you can enjoy easy pest control. Give us a ring at 1-877-869-7546 (weekdays between 8 a.m. and 5 p.m. CT) and provide reference number 23259973. Chat soon! – Brooklyn, STEM Consumer Care
4 out of 5 stars
Thumbs down graphic, would not recommend
27 May, 2026Verified purchase
small
Its tiny, you would think for that price it would be medium sized at best, but its about 4 inches tall. I did have some success on the first day fully charged I got a couple dozen misquitos you just have to make sure and have it in complete darkness so the bugs don't go towards other lights
5 out of 5 stars
23 May, 2026Verified purchase
(no review title)
Works!
2 out of 5 stars
Thumbs down graphic, would not recommend
20 May, 2026Verified purchase
Not worth it
Doesn’t attract anything and the way it’s designed light is too deep in.
1 reply from stem Team team - 2 months ago
We're bummed to hear this didn't zap away those pesky flies and mosquitoes. As this didn't leave behind good vibes, we'd like the chance to chat and learn more about your experience. Please give our team a call at 877-869-7546 (weekdays, 8 a.m. – 5 p.m. CT) and mention reference number: 23251828. – Megan, STEM Consumer Care
4 out of 5 stars
19 May, 2026
originally posted on influenster.com
STEM Flying Insects Zapper
[This review was collected as part of a promotion.] The STEM Flying Insects Zapper is a great addition to my outdoor set up. I like the ease of use, battery performance and that it can be hung or used on tabletop. It does a good job attracting flying insects in immediate vicinity.
2 out of 5 stars
Thumbs down graphic, would not recommend
15 May, 2026
Save your money
I wanted so badly for this to work. But it’s just way overpriced and over hyped for what you actually get. I’m a petite female and the entire unit is the size of my hand. Its Tiny. Not much lighted area to actually attract insects to. It’s portable that convenient. It doesn’t stay charged for long and it takes a LONG time to recharge. After several days,it still hasn’t gotten any insects. There are better choices out there,for a better price that actually do the job.
1 reply from stem Team team - 2 months ago
We're sorry to hear about your disappointment. We'd expect this to charge from 0% - 100% within 3 hours to begin zapping those pesky house flies, fruit flies and mosquitoes. As this didn't leave behind good vibes, we'd like to chat further. Please give our team a call at 877-869-7546 (weekdays, 8 a.m. – 5 p.m. CT) and mention reference number: 23243660. – Megan, STEM Consumer Care
4 out of 5 stars
Thumbs up graphic, would recommend
7 May, 2026Verified purchase
(no review title)
I was gonna read it one star first when I was thinking of returning it, but now I realized that it does last charging if you leave it charged long enough for the battery to be full. There was so many negative comments about the battery dying fast, which was my concern, but then I realize that if you leave it charged long enough, it will stay. And it has quite a a bit of flies. Pictures of tax shown there is flies inside and flying in insects
1 out of 5 stars
Thumbs down graphic, would not recommend
3 April, 2026
Waste of money
After about a month, it stopped charging.. and when it did work, it only worked for maybe six hours. Waste of money!
1 reply from stem Team team - 3 months ago
Oh no! We're sorry to hear your unit stopped charging. We'd expect a fully charged unit to provide 12 hours of pest free enjoyment. We'd appreciate the chance to make this right. Give us a ring at 1-877-869-7546 and provide your reference number: 23103447. We're available to help on weekdays between 8 a.m. and 5 p.m. CT. We look forward to chatting! – Brooklyn, STEM Consumer Care
5 out of 5 stars
Thumbs up graphic, would recommend
25 March, 2026Verified purchase
Very happy!
Love this thing. Totally works. Don't expect it to kill all the bugs in your house in one weekend, but it does help manage the surge in bugs when the weather warms up. Its easy to recharge and has a decent battery length.
5 out of 5 stars
24 March, 2026Verified purchase
(no review title)
Small but mighty!
1 out of 5 stars
Thumbs down graphic, would not recommend
18 March, 2026Verified purchase
Should be from the follar section, not worth $20
Battery doesn’t last long, and it’s so small maybe nats will fit in it.
1 reply from stem Team team - 4 months ago
We're sorry to hear about your disappointment with STEM Flying Insects Zapper. We anticipate this to effectively kill house flies, fruit flies, and mosquitoes for up to 12 hours. As this didn't meet your standards, we'd like the chance to chat and learn more. Please give us a call at 877-869-7546 (weekdays, 8 a.m. – 4:30 p.m. CT) and mention reference number: 23093278. We look forward to your call. – Megan, STEM Consumer Care
1 out of 5 stars
Thumbs down graphic, would not recommend
17 March, 2026Verified purchase
Burning smell
Burning smell from the melting plastic
1 reply from stem Team team - 4 months ago
We’re sorry to learn of your experience, Jonathan. Know comments like yours are taken seriously and we’d appreciate the opportunity to discuss this further. When you have a moment, give our team a call at 877-869-7546, Monday through Friday between 8 a.m. and 4:30 p.m. CT. Be sure to mention reference number: 23091859 when calling. We look forward to your call. – Megan, STEM Consumer Care
1 out of 5 stars
6 March, 2026
(no review title)
This thing hardly works!
1 reply from stem Team team - 4 months ago
Thanks for sharing your experience! We'd expect the STEM Flying Insects Zapper to attract and zap flying insects in and outside the home. We value your feedback, as we want to provide you with nothing but the best products. We would appreciate the opportunity to learn a little more about this and see how we can help. Please give our experts a call at 877-869-7546 (weekdays between 8 a.m. and 5 p.m. CT) and provide reference number: 23084045. We look forward to helping you fight bugs with accuracy! – Mindi, STEM Consumer Care