Realme has officially introduced two potentially groundbreaking concept smartphones at its annual 828 Fan Festival. These concept phones push the limits of mobile hardware and bring forth bold new innovations.
Introducing realme's Game-Changing Concept Phones!
— realme Global (@realmeglobal) August 27, 2025
Say hello to the future:
realme 15000mAh – with the INDUSTRY’S LARGEST phone battery!
realme Chill Fan Phone – the WORLD’S FIRST "AC" phone!
No more charging anxiety , no more overheating warnings —just pure, unstoppable power… pic.twitter.com/6orC36s3kX
The first concept, dubbed the Realme Chill Fan Phone, flaunts a built-in active cooling system. Referring to its effectiveness, the technology is said to essentially be a mini "AC" inside a phone.
According to Realme, the internal fan can reduce the device's temperatures by up to 6°C. This is to keep thermal throttling at bay during intense gaming sessions and extended usage, ensuring a smoother performance.
Meanwhile, the second major reveal is a phone that's equipped with a massive 15,000mAh battery. Realme claims this to be the largest ever battery capacity in a smartphone. The company also says that this powerhouse can deliver up to 5 days of daily usage, 18 hours of continuous video recording and 50 hours of video playback on a single full charge.
Together, the concepts aim to tackle two of the biggest pain points in smartphones today – battery anxiety and overheating. While Realme has not confirmed commercial availability yet, one can expect these prototypes to showcase the company's vision for its future devices.
In the global announcement post on X, the brand is also seen inviting fans to weigh in on which of these two innovations excites them more. This could let the brand decide on which concept phone to prioritise first and make a commercial reality, from the looks of it.
If brought to the market, these two devices could reshape expectations, big time. Whether someone is a power user, gamer or a content creator, both these technologies could really come in handy. Here's hoping that we see such concept phones turn into a reality soon.
