By any standards, that’s impressive, and easily beats the fastest charging speeds we’re used to seeing from brands like OnePlus. With the right wall charger, phones like the OnePlus 12 fully charge in just under 30 minutes. It also beats phones like the Xiaomi 13 Pro with its 120W charger, which charges the battery fully in around 20 minutes.

It’s not just the total charge time that’s impressive, as Realme’s 320W SuperSonic Charge takes just a minute to reach 26% and two minutes to reach 50% capacity. These figures come from Realme’s lab tests on the  SuperSonic Charge, and while some variation may exist depending on battery capacity and regional power supply, we’d expect it to be close to the real-world performance.

It has taken two years for Realme to finalize SuperSonic Charge, and it works via a combination of different technologies. One of the most important is that it seems to need a special “folded” battery, which Realme says is a world’s first. It consists of four cells with a total capacity of 4,420mAh, yet it is still only 3mm thick. The 320W charger itself has dual USB ports and supports several proprietary charging systems including Power Delivery and SuperVOOC, plus something called UFCS.

This stands for Universal Fast Charging Specification, and it’s a standard that wraps various different protocols into one. It has been adopted by several Chinese smartphone manufacturers since its announcement in 2022. Realme indicates that the UFCS protocol enables the 320W charging power. Realme’s 320W SuperSonic Charge is an exciting development, but we don’t know when it will arrive on a smartphone. Digital Trends has contacted Realme to find out more about the launch plans.

According to the company, it expects the 320W SuperSonic Charge system to arrive on a future Realme GT series phone. It recently launched the Realme GT 6, and there are rumors of a GT 7 phone arriving before the end of the year. However, Realme is making sure we don’t automatically expect it to have 320W charging.

“Even though we have led the industry in introducing the 320W SuperSonic charging technology, which is already commercially capable, we still have some work to do before massively applying the technology to our devices. This includes ensuring the technology’s stability and to roll out quality control for the new battery and charger we tailored for 320W.”

Realme reminds us that this work takes some time, so while the technology is ready, we may need patience before trying it out.