5 Electronics That Will Save You Money in March 2026

Costco’s membership base continues to grow, surprisingly no one buys groceries or pays their household bills. The list of things that are likely to be more expensive this year than in 2025 is extensive: health insurance, groceries, utilities, and more, all the things we need in our daily lives. Many shoppers are looking for ways to save, and one popular stop is Costco. Warehouse membership for the first quarter of 2026 was up more than 5% year-over-year, and the company has more than 145 million cardholders.

Costco is more than just tires, stacks of toilet paper, and unexpected purchases like an inflatable kayak or a whole wheel of Parmigiano Reggiano. Every month, the store provides members with a coupon book for members-only deals. These deals, which are often available both online and in-store, don’t require physical coupons. Costco reveals upcoming discounts through monthly coupon books, and the deals are applied when you check out. The deals cover a variety of products, from home goods to furniture to food items and electronics. Here are five of the best deals on electronics in the upcoming March Costco coupon book.

If you’re in the market for a new gaming computer, in March Costco will offer the Lenovo Legion 5i 16-inch Gaming Laptop for $1,299.99, a savings of $200 off its regular warehouse price. There’s a limit of two per buyer, and this laptop has a 90-day return policy and a two-year warranty. It has 32 GB RAM, 1 TB SSD, Nvidia GeForce RTX 5060 8 GB graphics card, and Intel Core Ultra 9 Processor 275HX.

While Lenovo’s rated well for gaming, Costco shoppers gave this laptop mixed reviews. Many call it a mid-range gaming laptop that is well priced and performs well. Many say it’s quiet and doesn’t get as hot as other devices, and it has good battery life. On the other hand, some users reported problems staying connected to Wi-Fi, although not all reviewers had the same problems. One reviewer said they’ve had two of these laptops and both stopped working, and a few users noted that the machine didn’t run at high levels until they completed all Windows updates, which didn’t run automatically. At the time of writing, the Lenovo Legion 5i Gaming Laptop has an overall rating of 3.7 out of 5 stars.

If you’ve been on the fence about buying a robot vacuum, you’ll be able to pick up this Shark 2-in-1 vacuum and mop for $479.99 in March, which is a whopping $120 off. These types of robot vacuums are designed to vacuum and vacuum simultaneously. This model has a self-retracting base and automatically fills the water tank inside the robot with clean water, so you don’t have to touch the base for at least 30 days.

The model also features what Shaka calls “Neverstuck Technology,” which detects obstacles and edges that could cause the robot to get stuck or stuck and lifts it to avoid them. It also has a 360-degree Lidar system and additional sensors that help it avoid potential pitfalls and detect the type of floor to optimize cleaning. As an exclusive member, shoppers who pick up this vacuum at Costco also receive additional antibacterial pads and filters. Users generally give this Shark positive reviews, which indicate Shark’s status as one of the best robotic mop and vacuum types. Reviews note that it maps well and cleans the floor well. Some reviewers encountered connection problems and poor cleaning, pet hair and mopping streaks left behind.

It may not be as fancy as a new laptop or tablet, but an electric toothbrush can help you earn a gold star from your hygienist at your next dental visit. In March, Costco will offer $50 off a $169.99 two-pack of Oral-B iO Series 5 electric toothbrushes. The brushes come in black and white, and buyers also get four brush heads, two charging stations, and two travel cases (though we don’t recommend trying to fly an electric toothbrush).

This Oral-B electric toothbrush offers five cleaning settings, including a daily clean setting and a sensitive setting, with pressure sensors that help users determine whether or not they are applying too much pressure. There’s a built-in two-minute timer, smart display, and Bluetooth connectivity that lets you connect to an app to help ensure you’re brushing properly.

These brushes have a lithium-ion battery that users claim will last several days between charges. Some reviewers have experienced issues with the toothbrush’s messy and mold-prone design, while others have had problems with the chargers. A few even noted that their brushes failed after only a few months of use. Despite these issues, Oral-B has a 4.6 out of 5 star rating on the Costco website at the time of writing.

If you didn’t buy a new TV for the Super Bowl or Black Friday and are looking for a good price, this 75-inch TCL Q77K Series QLED Smart TV will be on sale at Costco for $499.99 in March. When you buy this TV from Costco, you’ll get a five-year warranty with Allstate’s 3-Year Protection Plan and free technical support. TCL is known as an affordable option that doesn’t compromise on quality, and this Quantum Dot model fares well with Costco reviewers, with an average rating of 4.1 stars.

One reviewer said this particular TCL felt like a premium TV, just without the associated price tag. It gets high marks for its picture quality and price, although a few reviewers have experienced problems with the TV arriving damaged upon delivery. Reviews are mixed about Google OS, however. Some users encountered problems such as temporary freezing, while others were annoyed by the lack of cable streaming apps. On the other hand, many reviews also found the interface to be user-friendly, intuitive, and easy to set up.

This top-rated Bissell wireless monitor will be $50 off in March, with a final price of $169.99. Designed specifically for pet households, this stick vacuum weighs just over 7 pounds and is freestanding, so you can easily park it between jobs. It has a light to help clean dark spots, and Bissell says the self-cleaning brush can clean up to 16 inches of hair without wrapping the brush. It comes with two combined batteries that provide 100 minutes of runtime.

Included in the box is a crevice tool, Bissell’s FurFinder tool, a second battery, and a wall mount. This vacuum has a bagless design and includes a HEPA filter. Reviewers find it works great on pet hair and hard floors, and they appreciate the low price compared to other stick vacuums. In fact, we named it one of Dyson’s best options. That said, it’s not perfect. Some users have found that it doesn’t work well on carpet, and others find that some of the plastic clips that support the canister break easily.