While Vivo’s latest X300 series has just been released, and the company hasn’t even lifted the veil of secrecy surrounding the X300 Ultra, early rumors about phones that will follow the X300 series are already gathering momentum. A post from well-known Weibo leakster Digital Chat Station suggests that Vivo is preparing to make a major leap in battery capacity for its next flagship generation.

“4” in Naming Could Be Skipped

Given the current status, the standard X300 model carries a 6,040mAh battery, while the X300 Pro bumps that capacity to 6,510mAh. The new leak claims the company is aiming to increase the capacity to 7,000mAh in future X phones.

If Vivo follows its usual naming convention, it seems likely that the upcoming series will simply be called “X500” and skip the X400. Given the widespread avoidance of the number “4” in some parts of Asia for cultural reasons, the X400 series’ omission wouldn’t be surprising.

While the largest of the current lineup, the Vivo X300 Ultra, is thought to have a larger battery than its other two siblings, the leaker denied rumors in the comments that it would be a 7,000mAh battery. Battery upgrades may not be limited to the high-end segment. The same leaker claims that Vivo is also planning to increase capacities in its mid-range devices. Some models are reportedly focusing on 8,000mAh and even 9,000mAh batteries.

Most Chinese phone manufacturers have already transitioned to silicon-carbon batteries, and this shift is happening rapidly. It’s hard not to hope that Samsung and Apple, which still rely on batteries of around 5,000mAh in their flagship phones despite their increasingly bulky designs, will follow suit.

Of course, it’s too early to seriously discuss the Vivo X500 series. These phones are not expected until October or November of next year.