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AI & Enterprise

Perplexity alumnus launches Polar AI browser aimed at knowledge workers

Kevin Zhang, who took part in developing Perplexity\'s AI browser Comet, has founded an AI browser startup called Polar aimed at knowledge workers and raised $5.7 million in seed funding. TechCrunch reported the round was led by Madrona. Polar focuses on workflow automation rather than consumer browsing, letting users delegate tasks to agents based on open tabs and save prompts. The browser is free with limited daily credits, with subscriptions starting at $20 a month for higher limits.

Telecommunications & Media

Fitbit Air matches Apple Watch Ultra3 on heart rate but lags on GPS in 10 km test

Google\'s new fitness tracker Fitbit Air showed performance similar to a high-priced smartwatch in measuring heart rate and calories, but revealed noticeable errors in running distance and pace. TechRadar ran a 10 km test while wearing Fitbit Air and Apple Watch Ultra3. Average heart rate differed by 3 beats per minute and calories were close. Fitbit Air recorded a faster pace and longer distance, and offered fewer detailed running metrics.

AI & Enterprise

Tech Inside: Sci-fi turns real as ambitious space AI data centre plans take shape

Big Tech companies are accelerating efforts to use solar energy from space satellites for AI computing on Earth. Elon Musk has refocused SpaceX strategy on operating AI data centres in orbit, while Blue Origin is stressing a similar vision. Google is in talks with SpaceX and others on Project SunCatcher to build an orbital AI cloud using solar-powered satellites with TPUs. Reports cite obstacles including radiation, costs, cooling and data links.