Realme is making headlines with not one but two innovative smartphones. The company has teased an upcoming device equipped with a built-in cooling fan, while also announcing a concept phone featuring a massive 15,000mAh battery, set for launch on August 27.
Smartphone With Built-in Cooling Fan

Realme has showcased a smartphone designed with an inbuilt cooling fan which is actually a rare feature in mainstream phones. The size of the fan and the vent is actually larger than that of OPPO’s K13 Turbo series and can reduce the device’s internal temperature by as much as 6°C during heavy use.
Unlike traditional passive cooling systems, Realme’s design is more advanced, targeting not just the processor but also the battery compartment, ensuring that both performance and battery health remain stable under stress.
The device also has a dedicated button likely meant to activate the fan. Realme is marketing the feature as a “Built-in AC.” This could be a major draw for mobile gamers, who often face overheating issues during extended sessions, as well as for power users demanding sustained performance.
Realme’s 15,000mAh Battery Concept Phone

Apart from the built-in Fan device, Realme has also announced that it is set to launch a smartphone with a 15,000mAh battery. This means it is one of the most daring battery smartphone experiments to have ever been witnessed, with a capacity that is almost 3 times larger than the common flagships. Howeve,r the device is most likely to be a concept device with no mass production planned in the near future.
The company says the battery will provide a continuous play of up to 50 hours in video play or more than five days of normal use on a single charge. Interestingly, teaser posters indicate that the phone is not very thick despite the massive battery inside. The trademark is clearly marked with the 15,000mAh brand on the backside of the device to leave us in no confusion about the major feature of this device. Realme stresses that it is a concept smartphone that demonstrates the innovations made in the development of battery design.