Realme just dropped two mind-blowing concept smartphones at its 828 Fan Festival in China—a phone with a massive 15,000mAh battery and another with a built-in cooling fan. Here’s everything you need to know.
Realme took innovation to the next level during its 828 Fan Festival in China on Wednesday, revealing two futuristic concept phones that could change the game. One boasts a gigantic 15,000mAh battery, while the other packs an in-built cooling fan for hardcore gamers.
Did you watch the livestream just now? During the event, we introduced two groundbreaking concept phones that represent realme's commitment to innovation: the realme 15000mAh, which delivers up to five days of DOU on a single charge, and the realme Chill Fan Phone, which reduces… pic.twitter.com/FfeG5ubm2b
— Chase (@ChaseXu_) August 27, 2025Realme 15,000mAh Battery Concept Phone
The first concept device is all about power. With a 15,000mAh battery, Realme claims this phone can deliver up to six days of normal usage on a single charge. That’s not all—it promises 50 hours of video playback, 30 hours of gaming, 18 hours of continuous video recording, and even three months of standby time in flight mode.
Realme VP Chase Xu even teased that users could binge-watch 25 movies back-to-back without reaching for the charger. The phone can also double as a portable power station, letting you reverse charge other devices like smartphones and wearables via a wired connection.
Under the hood, details are still scarce, but leaks suggest it runs Android 15 with Realme UI 6.0 and could feature a MediaTek Dimensity 7300 chip, 12GB RAM (expandable by another 12GB virtually), and 256GB storage. A 6.7-inch display, dual rear camera setup, and silver colorway with 15,000mAh branding were also spotted. The device carries the model number PKP110.
Realme Chill Fan Concept Phone
The second concept is equally exciting for mobile gamers. Dubbed the Realme Chill Fan Phone, this model features a built-in cooling system that can reduce device temperature by up to 6°C during heavy gaming sessions. Realme even claims it has a “built-in AC inside”—a bold claim backed by teaser images showing a vent grille on the side of the device.
In terms of looks, the phone sports a design similar to the Realme GT 7T, with a blue finish slightly more saturated than the IcySense Blue variant of the GT series.
Both phones are still concept devices, and Realme hasn’t confirmed if or when they’ll hit the market. Would you want to own a smartphone with a 15,000mAh battery or one with a built-in fan? Tell us in the comments!
