I’ve spent years learning not to let moisture into my device. On closer look, it has answered my biggest questions and put my doubts to rest. Here’s how.
I’ve held a phone designed by a legend, and it’s something special
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Liquid cooling works, but not as I expected
It’s not the Frozone of Android-o-polis
Liquid cooling works. I felt it necessary to get that out of the way before discussing how much of a difference it makes. After all, manufacturers have built too much marketing hype around it to ignore.
The GT 50 Pro’s cooling setup is among the most pushed features I’ve seen. I watched the cringe-worthy AI teaser videos leading up to the launch. I eventually caved and received a unit anyway.
The HydroFlow liquid cooling system is the center attraction because it has a 6,437 mm² diaphragm. This diaphragm pushes coolant at 6.5 ml per minute across the processor and GPU. For your imagination’s benefit, it covers almost the same surface area as a standard playing card sitting flat against the inside of your phone.
The coolant moves through it at about the same rate as a slow-dripping tap. I love watching it happen through the triangular see-through panel in the lower center of the back. Inside it are green strips appearing in a trident formation.
The system provides enough cooling for the device, but works best together with the external MagCharge Cooler 2.0 clipped to the MagCharge case. I’d initially written it off as an animated display trick until I rotated my phone. The liquid responds to gravity.
By default, it’s active when my phone is charging, running a game, or under other demanding conditions. You will feel a faint rumbling in the top right corner beside the camera module. That should be the piezoelectric micro-pump.
Modest numbers are still a win
Even though I didn’t test under the best conditions
Contrary to my belief that brands just assemble a water-resistant phone and then fill it with water, liquid cooling is boring. The fluid is in its own sealed compartment that sits against the heat-generating components. The fluorinated coolant absorbs heat through contact with the closed walls like a radiator.
I’ll admit that my expectations were high, and I wanted around 10°C shaved off under load. RedMagic’s own results are the reason I remembered to be realistic. The 11 Pro had every incentive to make the numbers look good, and again, this is a budget phone at half its price, around $383.
A series of tests revealed how fairly modest it is. I ran the GT 50 Pro via 3DMark’s Wild Life Stress Test app. The GPU hammered across 20 consecutive loops while I went about my early morning chores. It renders a fixed 3D scene on each loop of a futuristic environment with dynamic lighting and elements.
Because the workload is identical each time, any drop in score is the result of the chip throttling under heat. With liquid cooling off, I recorded the best loop score of 10,912 and the lowest loop score of 8,661 with a stability rating of 79%.
Temperatures climbed from 42°C to 51°C across the test, and frame rates ranged between 33 and 73 FPS. Then I ran the same test with liquid cooling on, expecting the gap to be big. Stability did drop to 76%, and the lowest loop score fell to 8,299.
Temperatures reached 53°C, which is only two degrees hotter than without it. The frame rate range narrowed to 31–69 FPS. Apparently, the MediaTek Dimensity 8400 Ultimate already had aggressive thermal management baked into the silicon. By the time the HydroFlow system supported it, the chip must’ve already managed its own heat.
So, the cooling system barely rescues anything until the chipset produces enough heat. I’m projecting above 51°C, where stability dropped the most. However, stability jumped to 91% when I strapped the MagCharge Cooler fan to the phone case. The lowest loop score was 9,260. Temperatures settled between 45°C and 49°C and the peak score dropped to 10,187.
Then I spread my gaming sessions across hours of Call of Duty: Mobile, Farlight 84, and Fortnite. I started each with the phone temperature around 37°C, which is already warm. COD Mobile ran one full battle royale session at the highest available settings. It hit 44°C with cooling off, 43°C with liquid cooling on, and 41°C with the fan attached.
Fortnite ran hotter across all three because of its heavier rendering demands. The temperatures were 47°C, 46°C, and 45°C, respectively. The spread in both games across all three configurations is merely 2–3°C.
At this point, I was torn between retaking the tests until I saw a difference or writing off the whole system as ineffective. Two degrees is not the impressive margin I thought I’d see.
But my mind kept returning to the ambient temperature around me. Most cooling benchmarks I’ve seen happened in controlled environments, probably in an air-conditioned room around 22°C where the phone has passive cooling just from the air. I gave the GT 50 Pro no such help in a 37°C room where it should already be fighting for its life.
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All’s well that looks well
Infinix deserves credit for the aesthetics of the GT 50 Pro. Even stripped of its liquid cooling advertising, I love the Kevlar-inspired design. The faux aramid on the back is a smart call to balance the price because real aramids are expensive.
I’ve never owned a better-looking phone. I get many compliments on it from strangers. The Mechanical Light Waves add to its appeal, and they coordinate with many functions.
I set them to sync to music or flash for notifications and calls. Overall, I’m not at a loss. My basic conditions for a functional gaming phone have been met to a large extent.
