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The best cheap fitness trackers for 2025

Engadget has been testing and reviewing consumer tech since 2004. Our stories may include affiliate links; if you buy something through a link, we may earn a commission. Read more about how we evaluate products . If you’re looking to get healthier without spending a fortune, the best cheap fitness trackers prove you don’t need to splash out on the best smartwatches to stay on top of your goals. Whether you're counting steps, keeping track of heart rate monitoring or trying to improve your sleep

You should stop putting your phone face up on the table - here's why

Sabrina Ortiz/ZDNET A friend of mine recently told me, "I always keep my phone on silent mode… which doesn't matter because I compulsively look at it every three minutes anyway." He's not the only one. From becoming a text addict to having full-blown smartphone dependency, the urge to look at and interact with our "flat things" has been deeply ingrained into our collective behavior for some time now. Also: I ditched my phone for this E Ink handset for two weeks - here's my buying advice now

Your iPhone Has a White Noise Function. Here's How to Turn It On

Listening to natural sounds can lower stress, relieve perceived pain and foster a more positive disposition, according to research from the Proceedings of the National Academy of Sciences. Other studies suggest that white noise could help parents get their babies to sleep, adults learn words and improve learning in environments full of distractions. And if you're looking to buy a white noise machine for yourself or your child, your iPhone can function as one, saving you money on a new device. R

The Structure of Ice in Space Is Neither Order nor Chaos—It’s Both

Ice is a key component in the universe. There are frozen water molecules on comets, moons, exoplanets, and in your drink as you cool off from the summer heat. However, under the microscope, not all ice is the same, even though it is made of the same components. The internal structure of Earth’s ice is a cosmological oddity. Its molecules are arranged in geometric structures, usually hexagons that repeat each other. Ice on Earth forms this way due to the temperature and pressure of the our plane

Black hole merger challenges our understanding of black hole formation

Gravitational waves—ripples in space-time caused by violent cosmic events—travel at the speed of light in every direction, eventually fading out like ripples in water. But some events are so destructive and extreme that they create disturbances in spacetime more like powerful waves than small ripples, with enough energy to reach our own detectors here on Earth. Today, the LIGO Collaboration announced the detection of the most colossal black hole merger known to date, the final product of which

Let's Learn x86-64 Assembly (2020)

Let's Learn x86-64 Assembly! Part 0 - Setup and First Steps published on Apr 18 2020 The way I was taught x86 assembly at the university had been completely outdated for many years by the time I had my first class. It was around 2008 or 2009, and 64-bit processors had already started becoming a thing even in my neck of the woods. Meanwhile, we were doing DOS, real-mode, memory segmentation and all the other stuff from the bad old days. Nevertheless, I picked up enough of it during the classes

Show HN: Refine – A Local Alternative to Grammarly

Is my data truly private? Yes, absolutely. Your documents, text, and writing never leave your Mac. We don't collect, store, or transmit any of your personal content. All processing happens locally using offline large language models (LLMs) that run directly on your machine. What apps does it work with? Works with most macOS apps including Mail, Messages, Safari, Chrome, Pages, Word, Slack, Notion, and many more. What about system requirements? Requires macOS 14.0 or later. Works with both Appl

Astronomers Detect a Black Hole Merger That’s So Massive It Shouldn’t Exist

Gravitational waves—ripples in space-time caused by violent cosmic events—travel at the speed of light in every direction, eventually fading out like ripples in water. But some events are so destructive and extreme that they create disturbances in spacetime more like powerful waves than small ripples, with enough energy to reach our own detectors here on Earth. Today, the LIGO Collaboration announced the detection of the most colossal black hole merger known to date, the final product of which

macOS Tahoe 26: All the new features in Messages

9to5Mac is brought to you by CleanMyMac: Tidy up your Mac and iPhone today! Try 7 days free and use our code 9TO5MAC15 for 15% off. Also check out CleanMyPhone for your iPhone! macOS Tahoe 26 will be released to everyone later this year, and it brings a handful of notable new features to the Messages app. There are new customization options, upgraded search functionality, group message improvements, and more. Head below for all the new features coming to the Messages app on Mac later this year

Let's Learn x86-64 Assembly Part 0 – Setup and First Steps

Let's Learn x86-64 Assembly! Part 0 - Setup and First Steps published on Apr 18 2020 The way I was taught x86 assembly at the university had been completely outdated for many years by the time I had my first class. It was around 2008 or 2009, and 64-bit processors had already started becoming a thing even in my neck of the woods. Meanwhile, we were doing DOS, real-mode, memory segmentation and all the other stuff from the bad old days. Nevertheless, I picked up enough of it during the classes

Meta acquires voice startup Play AI

In Brief Meta has acquired Play AI, a startup that uses AI to generate human-sounding voices. A Meta spokesperson has confirmed the acquisition, according to Bloomberg, which also reports that an internal memo stated that the “entire PlayAI team” will be joining the company next week. (TechCrunch has also reached out to Meta for confirmation.) Meta’s memo reportedly said that PlayAI’s “work in creating natural voices, along with a platform for easy voice creation, is a great match for our wor

Here are the latest rumors on the upcoming MacBook Pro refresh: Release date, details

Apple is reportedly working on a new MacBook Pro refresh, as they tend to do almost every year. This refresh is quite minor, but if you’re in the market for a new laptop, we’ll be breaking down everything you need to know about the next MacBook Pro update. What’s new As always, these new MacBook Pro models will come with a new generation of Apple Silicon. That means we’ll see the introduction of M5, M5 Pro, and M5 Max. These chips will still be based on TSMC’s 3nm process, specifically N3P, t

Topics: apple m5 macbook new pro

Google Gemini flaw hijacks email summaries for phishing

Google Gemini for Workspace can be exploited to generate email summaries that appear legitimate but include malicious instructions or warnings that direct users to phishing sites without using attachments or direct links. Such an attack leverages indirect prompt injections that are hidden inside an email and obeyed by Gemini when generating the message summary. Despite similar prompt attacks being reported since 2024 and safeguards being implemented to block misleading responses, the technique

Best VPN for iPhone 2025: Enhance Your Privacy on the Go

Downloading a VPN app, creating an account, choosing a plan and connecting to your VPN shouldn't take longer than a minute or so. Nelson Aguilar/CNET With so many iPhone VPN apps available, it can be difficult to choose the right one. Based on our extensive research and hands-on testing of VPNs over the years, these are the factors to look out for when choosing the best VPN for iPhone: Privacy The most important factor to consider with any VPN is privacy. You should never use a VPN provider i

Best VPN for Mac for 2025: Hide Your Browsing, Privately Torrent and Unblock Streaming Services Like Netflix

Most VPN providers offer a VPN app for Mac computers, but it can be difficult to choose the right provider with so many options available. Based on our extensive research and hands-on testing of VPNs over the years, these are the most important factors to consider when choosing a VPN: Privacy The primary consideration for any VPN -- including a Mac VPN -- should be privacy. If your Mac VPN is unable to sufficiently protect your online privacy, then your VPN is useless. At a minimum, your VPN s

Topics: mac privacy vpn vpns want

For Algorithms, Memory Is a Far More Powerful Resource Than Time

That classic result was a way to transform any algorithm with a given time budget into a new algorithm with a slightly smaller space budget. Williams saw that a simulation based on squishy pebbles would make the new algorithm’s space usage much smaller—roughly equal to the square root of the original algorithm’s time budget. That new space-efficient algorithm would also be much slower, so the simulation was not likely to have practical applications. But from a theoretical point of view, it was n

Why GM’s CEO is still betting on electric vehicles (and racing)

GM was the first major US automaker to make the promise to go all-electric by 2035, just four years ago. Those promises have since turned into rough estimates under the second Donald Trump presidency, with the company softening language about its electrification goals. But GM is riding high on EV sales, and as CEO Mary Barra puts it, EVs are still the future — just on a delayed (and very flexible) timeline. “We still believe in an all-electric future,” Barra told The Verge in an exclusive inter

Topics: barra cadillac ev gm said

Elon Musk’s SpaceX might invest $2 billion in Musk’s xAI

In Brief One Elon Musk business might be making a big investment in another. According to a Wall Street Journal report that cites investors close to SpaceX, the company has agreed to invest $2 billion in Musk’s AI startup xAI. The investment would reportedly be part of the $5 billion equity raise (along with another $5 billion in debt) that Morgan Stanley announced at the end of June. This would be SpaceX’s first investment in xAI, and one of its biggest investments in another company. The WS

I’ve tested all the best smart rings in 2025, and these are the only ones I would buy

While fitness trackers and smartwatches are the better-known devices in the wearable tech world, there is a third, less popular option. Smart rings are slowly becoming more attractive alternatives. I’ve tested more than a dozen of these minimalist devices, and below are the best smart rings you can buy. Oura Ring 4: The best smart ring overall Oura Ring 4 Thinner design • Refreshed app experience • Smarter health sensing MSRP: $399.00 The top smart ring gets an upgrade. The Oura Ring 4 is the b

Switching to Claude Code and VSCode Inside Docker

Last night I finished a transition from my old AI coding setup I've been using for a while to running Claude Code in Docker using VSCode's "Dev Container" feature. In this post I lay out a few of my thoughts on why I wanted to switch to something in the first place, and also a short guide for those who want to do the same. If you are here just for the guide + code (a tiny single file), here it is: https://github.com/tim-sha256/claude-in-docker 🥺 Important note! I'm not a professional vibe

Switch 2 user warns about accidental ban after playing preowned game cards

You might have to be extra careful who you buy your used Nintendo Switch game cards from if you don't want to get mistakenly banned. A Nintendo Switch 2 owner posted on Reddit that they got banned after downloading patches for a few Switch game cards that were bought off Facebook Marketplace. Reddit user dmanthey said they inserted each game into their Switch 2 to patch, but found out that their online services were restricted the day after. The Switch 2 user contacted Nintendo support and disc

Best Black Friday in July 2025 deals at Best Buy: The best offers that end tomorrow

Tech prices are getting harder and harder to stomach, but there are times you can catch a break. Luckily, Best Buy is giving you your chance to save this summer. Big-ticket items like the M3 MacBook Pro, Samsung The Frame TV, and Beats Studio Pro are discounted by hundreds of dollars. Get daily deals straight to your inbox during Prime Day when you sign up for ZDNET Recommends, your one-stop newsletter for the sale. Also: The best Prime Day deals so far Best Buy's Black Friday in July sale be

Topics: best black buy deals july

'Starter packs' have played a central role in Bluesky's rapid growth

“Vital onboarding strategy for the emerging social media systems” “Our findings go beyond Bluesky: they point to a new framework for launching successful social platforms,” said Dr Onur Ascigil, Lecturer in Computer Science at Lancaster University and Principal Investigator of the study. “Starter packs are becoming a vital onboarding strategy for the emerging social media systems that are seeking to attract users from dominant platforms.” The researchers believe their findings could help platfo

Kimi k2 largest open source SOTA model?

📰 Tech Blog | 📄 Paper Link (coming soon) 1. Model Introduction Kimi K2 is a state-of-the-art mixture-of-experts (MoE) language model with 32 billion activated parameters and 1 trillion total parameters. Trained with the Muon optimizer, Kimi K2 achieves exceptional performance across frontier knowledge, reasoning, and coding tasks while being meticulously optimized for agentic capabilities. Key Features Large-Scale Training: Pre-trained a 1T parameter MoE model on 15.5T tokens with zero train

Topics: acc kimi model shot tool

Legendary Entertainment May Have Lionsgate in Its Acquisition Sights

Studios have been threatening to acquire each other the past couple years, and now it seems to be Legendary Entertainment’s turn. According to the Hollywood Reporter, the studio behind recent hits like A Minecraft Movie and the Dune trilogy is potentially snatching up Lionsgate, best known for the John Wick and Hunger Games series. At the moment, the two companies are considering a team up on some films, and if things go well, that’ll blossom into a “more complete offer.” There weren’t any spec

Horrifying Research Finds Melting Glaciers Could Activate Deadly Volcanoes

Scientists are warning that glaciers melting due to global warming could trigger explosive — and potentially deadly — volcanic eruptions around the world. As detailed in a new study presented at the Goldschmidt international geochemistry conference this week and due to be peer-reviewed later this year, researchers from the University of Wisconsin-Madison analyzed six volcanoes in southern Chile to study how retreating ice sheets may have influenced past volcanic behavior. Using advanced argon

Our favorite smartphone accessories at Android Authority

Rita El Khoury / Android Authority It’s all well and good having a great Android phone, but an ecosystem of accessories can also make for a more enjoyable experience. Just take a look at all the handy add-ons for Galaxy phones and iPhones that you can buy on Amazon or the millions of other retailers — there are so many! Unsurprisingly, we love phone accessories here at Android Authority, but not all of them are created equal. So I thought it would be a good idea to ask my colleagues about thei

This $99 discreet, subscription-free fitness band is a good budget Whoop tracker alternative

Amazfit Helio Strap The Amazfit Helio Strap isn’t trying to be a high-powered training tool, but instead a comfortable, distraction-free fitness and health tracker that delivers solid wellness insights without the bloat of a screen or the burden of a subscription. If you're after a low-maintenance wearable that quietly does its job and lets you focus on your day, it’s a great value at $99. I’m a screen fiend as much as the next shopper, but that doesn’t mean I can’t appreciate a distraction-fre

The MacBook Upgrade Program that starts at $33.28/month

The MacBook is one of the most powerful tools of the modern age. Most people will spend years of their lives in front of their computer. So it makes sense to have a great one. But the way we buy them is broken. High cost. Trade-in headaches. Endless upgrade cycles. For most people, spending upwards of $2,000 upfront puts a huge hole in your pocket, not to mention the hassle and time spent reselling it when you’re ready to upgrade. But there’s a newer option…and it’s growing fast among profes

Only on Nantucket: The Curious Case of the "Stolen" Mercedes

Good questions. And as Monday came and went without any sign of the missing Mercedes, the mystery deepened, and more theories continued to pour in: had it been hotwired and moved to a chop shop? Was it used for a joy ride and ditched in some remote corner of the island? The family asked the Current to share a photo of the vehicle, and the fact that it had been reported stolen. The post set off a deluge of messages along the lines of: "Who steals a car on Nantucket? Where are they going to go?"