Galaxy S26 Ultra Tipped to Get Larger Vapor Chamber, 2-Day Battery

Galaxy S26 Ultra leaks are intensifying as Samsung gears up for its mass production. A noted leaker recently confirmed the upcoming flagship’s dimensions, vapor chamber cooling system, and endurance expectations. The information lines up closely with previous reports, adding weight to the claims.

Galaxy S26 Ultra sees subtle size changes for a ‘balanced grip’

According to the leak, the Galaxy S26 Ultra will measure 163.4mm tall and 77.9mm wide, slightly larger than the S25 Ultra’s 162.8mm x 77.6mm frame. The difference might sound minor, but the phone will feature rounder edges for a more natural, “balanced grip.” It’s a welcome change for users who found the S25 Ultra’s boxy profile a bit sharp in hand.

Adding to comfort, the upcoming model could also be thinner and lighter, measuring just 7.9mm thick and weighing around 217 grams. Its predecessor measures 8.2mm in thickness and 218 grams in weight. Despite this, Samsung managed to beef up the vapor chamber, a key thermal management component, by 15%.

This enhancement is likely aimed at handling the heat generated by its powerful processors. The device could ship with the Exynos 2600 or Snapdragon 8 Elite Gen 5 chips, depending on the market. A larger vapor chamber should result in more stable performance during demanding workloads like gaming, 4K video recording, or extended AI-assisted operations.

One of the more eye-catching claims from the tipster is that the Galaxy S26 Ultra could last up to two days even under heavy AI use. While that figure will undoubtedly vary by user and workload, it aligns with Samsung’s ongoing optimization of AI-powered efficiency and adaptive battery algorithms. The same source previously hinted that the device could pack a 5,400mAh battery instead of 5,000mAh, so a meaningful improvement in real-world endurance seems plausible.

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