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We may earn a commission from links on this page. Deal pricing and availability subject to change after time of publication. Augmented reality smart glasses blend digital content directly with the physical world, enabling hands-free device use, but a persistent pain point remains: Low brightness can make them unusable in certain settings. Many models max out at 400 to 600 nits, but a rare few exceed that, making them more practical in different conditions—like the Viture Luma Pro AR glasses, which can hit 1,000 nits of brightness. Right now, the Viture Luma Pro AR glasses are over $200 off during Amazon's early President’s Day sale, bringing them to an an all-time low of $424 (originally $629). The Viture Luma Pro glasses earned high marks from PCMag, whic...

We may earn a commission from links on this page. Deal pricing and availability subject to change after time of publication. Presidents' Day is not until Monday, but as is often the case, the sales are already here. Amazon's sale features some notable deals on tech products like smartwatches, headphones, home appliances, speakers, and more. There are plenty of other Presidents Day sales on the way, so don't fret if nothing here catches your eye. Regardless, I've gathered the best of Amazon's sale below, which features a few all-time low prices, according to price-checking tools. The Apple Watch Series 11 is $100 offThe Apple Watch Series 11 is the latest Apple Watch and it improves on the Series 10 in many ways. It has a longer battery life and tiny tweaks...

It’s tempting to think that an LLM chatbot can answer any question you pose it, including those about your health. After all, chatbots have been trained on plenty of medical information, and can regurgitate it if given the right prompts. But that doesn’t mean they will give you accurate medical advice, and a new study shows how easily AI’s supposed expertise breaks down. In short, they are even worse at it than I thought.In the study, researchers first quizzed several chatbots about medical information. In these carefully conducted tests, ChatGPT-4o, Llama 3, and Command R+ correctly diagnosed medical scenarios an impressive 94% of the time—though they were able to recommend the right treatment a much less impressive 56% of the time. But that wasn’t a real-world test for the chatbots medic...