The compact smartphone OnePlus 15T, according to fresh data, might feature an even larger battery than previously reported. Insider Digital Chat Station mentions that it could be a 7000-7500 mAh component. Recall, this relates to a smartphone with a 6.3-inch display, which was earlier rumored to house a 7000 mAh battery. Although the new data doesn’t confirm the capacity as precisely 7500 mAh, there is now a possibility exceeding 7000 mAh. In comparison, the OnePlus 13T has a battery capacity of 6260 mAh.

The device is expected to feature the Snapdragon 8 Elite Gen 5, making it one of the few compact full-fledged flagships, at least performance-wise, alongside a decent battery. Furthermore, yesterday we reported another aspect: the Honor Magic 8 Air is attributed with both a top-tier platform, a decent battery, and a slim and lightweight body. Previously, Digital Chat Station was the first to accurately report details on Xiaomi 15 and Xiaomi 15 Pro, as well as about the Realme GT 7 Pro receiving a bright Samsung screen and the early release of SoC Dimensity 9400 ahead of the Snapdragon 8 Elite.
Upcoming Trends in Compact Smartphones
As 2026 unfolds, the market’s focus on optimizing performance within compact forms grows. Industry experts note that battery advancements continue across the segment, making devices like OnePlus 15T highly anticipated. As competition intensifies, key brands seek to balance power, efficiency, and design, with Qualcomm’s Snapdragon 8 Elite Gen 5 leading in enhancing processing capabilities around the compact flagship models.
Interestingly, the demand for longer battery life in mobile technology is now paralleled by innovations such as fast-charging capabilities, contributing to the seamless experience users desire from yet retaining the aesthetic and ergonomic benefits of smaller devices.