Robotics

What is cache?Cache — or browser cache — is the temporary storage of website files. So, things like images, scripts, and cookies that your browser saves on your phone to make pages load faster the next time you visit. Also: Every iPhone model that can be updated to iOS 26 (and which ones don’t support it)Over time, though, those files can add up, taking a large bite out of your device storage and slowing things down. That’s why it’s smart to clear your browser cache regularly. In this article, I focused on clearing Safari and Chrome’s cache on an iPhone, but keep in mind that apps and even your phone’s processor have their own caches, too.How to clear your app cache on iPhoneYou can clear an app’s cache by deleting and reinstalling it — or, when available, using an in-app “Clear Cache” option. Since iOS doesn’t offer a universal cache-clearing tool, each app handles it differently. TikTok and CapCut include a built-in cache-clear button, Amazon lets you erase your browsing history, and Reddit offers a way to wipe local history. It depends on an app’s features.Is ‘clear cache’ the same as offloading? Not quite. Offloading an app via your iPhone’s settings can boost performance when your storage is tight by uninstalling the app and keeping its documents and data intact. Just go to Settings > General > iPhone Storage, tap the app you want, and choose Offload App. This removes the app and its cache but leaves your data in place, so when you reinstall it, you’ll pick up right where you left off.Are cookies and cache the same thing?Cache and cookies are not the same. Cache stores copies of images, scripts, and other page elements so sites load faster on your next visit, while cookies are small data files that remember specific information about you — like login credentials, site preferences, or items in your shopping cart. Also: Cookie pop-ups don’t have to be a fact of life online – how I block them and whyClearing your cache removes those saved page files but won’t log you out of sites, whereas deleting cookies will wipe your saved logins and settings, forcing you to sign in again and reset any preferences.Can you block cookies on an iPhone?You can block cookies in Safari. Turning them off stops sites from tracking you, but it can also break some websites or limit features. So, you’ll need to weigh privacy against usability. If you’d like to block cookies in Safari, follow these steps:Go to Settings and select Safari.Tap on the toggle next to Block All Cookies.There are also third-party extensions — such as Ghostery More

Adam Smigielski/Getty Images Over the last few decades, compromised usernames and passwords have typically been at the root of some of the most sensational, damaging, and costly data breaches. An incessant drumbeat of advice about how to choose and use strong passwords and how not to fall prey to social engineering attacks has done little […] More

When is Amazon Prime Day 2025?  This year, Amazon Prime Day runs from July 8-11. It’s the first time that it’s a four-day sale event, instead of just two days. Are tech products really cheaper on Prime Day?  Yes, you can find lots of tech for cheaper prices during Prime Day sales, at Amazon as well as competing retailers like Costco, Walmart, and Best Buy. During this sale window, some companies will offer bundles, freebies, or lower prices to entice you to buy directly from them instead of Amazon. We’re monitoring everyone’s sale prices during the event to update you on the most worthwhile ones. How did we choose these EcoFlow deals? ZDNET only writes about deals we want to buy — devices and products we desire, need, or would recommend. Our experts looked for deals that were at least 20% off (or are hardly ever on sale), using established price comparison tools and trackers to determine whether the deal is actually on sale and how frequently it drops.  We also looked over customer reviews to find out what matters to real people who already own and use the deals we’re recommending. Our recommendations may also be based on our own testing — in addition to extensive research and comparison shopping. The goal is to deliver the most accurate advice to help you shop smarter.  What are the best Prime Day deals so far?ZDNET’s experts are searching through Prime Day sales to find the best discounts by category. These are the best deals so far:You can also find the best deals from other retailers competing with Prime Day sales: More

What are the best Prime Day deals so far?ZDNET’s experts are searching through Prime Day sales to find the best discounts by category. These are the best deals so far:You can also find the best deals from other retailers competing with Prime Day sales:When is Amazon Prime Day 2025? Amazon’s annual Prime Day sale will run from July 8 through July 11, with many of the best deals going live the day of. But if you can’t wait to upgrade your PC gaming setup, or are building a gaming PC that’s pulling double-duty as a work computer, you can find great early deals on accessories like keyboards and headsets, components, and prebuilt desktops and laptops.Are gaming PCs and components really cheaper on Prime Day? While you can find steep discounts on gaming PCs, accessories, and components during Amazon’s Prime Day sale, it sometimes pays to look at other retailers and even to see if brands like HP and Dell are offering bundle deals or better markdowns. This is especially true if you’re looking to get new components like graphics cards, RAM, or storage drives. How did we choose these Prime Day deals?Not all PC gaming sales are created equal, and not every retailer will offer markdowns on gaming components or computers. So I chose the steepest discounts on the most popular and trusted names in PC gaming like HP, Razer, HyperX, and more to help you find the best deals on the best accessories, components, and pre-built desktops so you can stay on budget when buying a new gaming rig or updating your current setup. More

It’s the second of Amazon’s Prime Day sale, and plenty of retailers are slashing prices to compete for your dollars. Walmart’s sale runs July 8 – July 13. If you’re a Walmart+ subscriber, you’ll get exclusive early access starting Monday, July 7 at 7 p.m. ET.  You can also shop regular Walmart More

When is Amazon Prime Day 2025? Amazon is holding its annual Prime Day sales event this July and, for the first time, it will last four days instead of two, starting on July 8 and ending on July 11.Are Echo devices really cheaper on Prime Day? Yes, Echo and other Amazon devices get the biggest markdowns during the Prime Day sales event. As a smart home reviewer who always looks for great deals, I’ve purchased a few Echo devices during Prime Day events for this very reason.How did we choose these Prime Day deals?ZDNET cares greatly about curating the best deals for our readers, ensuring we only feature the deals worth your hard-earned money. We combine our experience testing different smart home products and looking for deals to give you the best offerings currently available, so you can be sure that a deal featured on ZDNET is a good one.What are the best Prime Day deals so far?ZDNET’s experts are searching through Prime Day sales to find the best discounts by category. These are the best deals so far:You can also find the best deals from other retailers competing with Prime Day sales: More

Amazon’s Prime Day sale is in full swing, and even though it’s extended by two days this year, the deals are still popping off. We’ve got eyes on great deals across a wide range of Apple products, including many of ZDNET editors’ top picks. Get daily deals straight to your inbox during Prime Day when you sign up for ZDNET Recommends, your one-stop newsletter for the sale.We love going hands-on with new Apple products here at ZDNET, and closely track price drops on each model to help you cut through the clutter for the best deal. Whether you’re looking for a new MacBook, Apple Watch, or iPad, we only highlight deals we’d personally vouch for.Also: The best Prime Day dealsRight now at Amazon More

Min Shin/ZDNETI am someone who gets headaches — a lot. And sometimes, no matter what over-the-counter medication I take or herbal remedies I try out, they just won’t go away. Desperate to find a solution to the migraines that render it impossible to function, I bought the Renpho Heated Eye Massager More