OnePlus just dropped the OnePlus 15 with breakthrough battery technology that's reshaping smartphone expectations. The device packs a massive 7,300-mAh silicon-carbon battery - the largest ever in a US flagship - delivering consistent two-day runtime that puts every competitor to shame. According to WIRED's extensive testing, this represents the biggest leap in smartphone endurance since the early days of mobile computing.
OnePlus is making its boldest play yet for US market relevance with the OnePlus 15, a device that fundamentally redefines what flagship battery life should look like. The company has been struggling to gain traction against Samsung and Apple, falling behind even Motorola and Google in market share over recent years.
The game-changer here isn't just incremental improvement - it's a massive 7,300-mAh silicon-carbon battery that dwarfs everything else in the US market. For context, Samsung's Galaxy S25 Ultra packs just 5,000-mAh, making the OnePlus 15's cell nearly 50% larger. According to Julian Chokkattu's testing for WIRED, this translates to consistent two-day usage with 70% remaining after light days and 50-60% after heavy streaming and gaming sessions.
"I exclusively charged it every other day after more than a week of testing," Chokkattu reported, achieving an impressive 10.5 hours of screen-on time across two days. The phone pairs this endurance with OnePlus's SuperVooc fast-charging technology, ramping from 15% to 80% in just 30 minutes.
Performance credentials are equally impressive. The OnePlus 15 debuts Qualcomm's Snapdragon 8 Elite Gen 5 processor in the US market, officially becoming the first smartphone to break 10,000 in Geekbench 6 multi-core testing - even beating Apple's iPhone 17 Pro Max. Gaming performance particularly stands out, with Genshin Impact running flawlessly at maximum settings while maintaining 60fps without uncomfortable heating.
The design represents a significant departure from OnePlus tradition. Gone are the distinctive circular camera modules and marble-pattern backs, replaced by a more conventional square camera bump and flat color options: Infinite Black, Sand Storm, and Ultra Violet. The redesign extends to technical specifications, including a 165-Hz AMOLED display, 3,200-Hz touch sampling rate, and comprehensive water resistance with IP66, IP68, IP69, and IP69K ratings.
