Did You Know
Did You Know: The RedMagic 12 Pro Has a Liquid Pump Inside That Runs on 20 Milliwatts
Under the clear back of RedMagic's new gaming phone, a tiny piezoelectric pump pushes server-grade coolant through two loops. RedMagic rates the fluid from minus 60 to 108 degrees Celsius, and a teardown microphone could not hear the pump at all.
SHENZHEN, China. · Maya Chen, Did You Know · Nov 9 2026
SHENZHEN, China. - Did you know that the RedMagic 12 Pro has a working liquid pump inside it, and that RedMagic rates its power draw at just 20 milliwatts? That is two hundredths of a watt. On its product page, the company says the dual-crystal micropump puts out up to 130 kPa of pressure with 85 percent more power output than before, and that it sends a fluorinated, “AI-server-grade” coolant through two separate loops covering both the chipset and the battery.
That coolant is the second surprise. RedMagic lists its working range as minus 60 to 108 degrees Celsius, so a phone left in a freezer would not freeze the liquid inside it. RedMagic describes the cooling system as fully sealed and non-conductive, built to help prevent leaks and short circuits, and says it has been through hundreds of thousands of drops in testing.
Image: JerryRigEverything via YouTube
In most phones, liquid cooling means a sealed vapor chamber, where a small amount of fluid evaporates and condenses in place. The 12 Pro has a large one of those too. What it adds is circulation, and Zack Nelson of JerryRigEverything showed it moving. In his teardown video, posted Nov. 7, small beads drift through the blue channels behind the back glass, and he points out that the tubes change width along the way. Where a channel narrows, the flow speeds up; where it widens, the liquid slows down.
The pump itself sits at the bottom of the phone. Nelson describes it as a piezoelectric ceramic dual-crystal design that pushes coolant through a check valve before it starts its trip through what he calls the labyrinth. He pulled his microphone down close to listen for it. The 25,500 rpm fan next to it was easy to hear. The pump was not audible at all.
Image: JerryRigEverything via YouTube
Getting the loops out took 18 Phillips screws of different lengths, including one hidden behind the wireless charging coil, one behind the RedMagic logo and one behind the RGB lights. The loops come out as one assembly with the fan’s air duct, and the metal of that duct touches both the liquid channels and the vapor chamber. RedMagic calls the whole package AquaCore Cooling System 3.0. Nelson also found that the pump and fan can run while the 8,400mAh battery is fast charging.
Image: REDMAGIC
There is one caveat in the design. The phone as a whole is rated IP68 and IP69, but RedMagic gives the turbo fan an IPX8 rating, which covers water only. Nelson notes that the fan is fine under water but that dust can still get into the air duct, where mesh screens keep out only the larger debris.
Screenshot: @redmagicgaming on X
The video was made with RedMagic’s involvement. Its description links to a RedMagic giveaway of three phones, and the company promoted the teardown on its own X account. Still, the moving coolant is there on camera, not just in a rendering. The global 12 Pro starts at $949 in the U.S., £799 in the U.K. and €899 in Europe, according to Fonearena, with open sales from Nov. 18. Buyers who never open it will still see the coolant, because RedMagic lights the battery-side loop with an RGB halo behind the clear glass.
