When Xiaomi announced the Redmi 15 5G (review), the spotlight immediately fell on its massive 7,000mAh battery. At under Rs 15,000, it’s one of only two phones in the segment, the other being the POCO M7 Plus, to pack such a capacity. Pair that with a 6.9-inch display boasting a 144Hz refresh rate (though only in select apps), and the Redmi 15 looks tailor-made for budget gamers. But once you move past the spec sheet, does it actually live up to that promise? I put it to the test.
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Gaming performance: strong battery, average muscle
Our in-house testing team ran the Redmi 15 through COD Mobile, BGMI, and Real Racing 3, all at peak settings, for 30 minutes each. Here’s where things got interesting.
COD Mobile (very high graphics + high FPS): The phone averaged 53.6 FPS. Respectable for the price, but slightly below competition, and the occasional stutter at max settings does take the shine off. Drop the settings to moderate, and you’ll get smooth, casual-friendly gameplay, but hardcore gamers may feel shortchanged, considering the phone’s positioning.
BGMI (HD graphics + high FPS, the maximum supported here): The Redmi 15 managed 29.4 FPS. That’s decent, but when you compare it to rivals like the Vivo T4x, which achieves 36.3 FPS at HDR + extreme, it’s clear the Redmi 15 isn’t pushing boundaries. Gameplay remains stable, but the limited graphics options mean you never really feel like you’re gaming on a “144Hz” device.
In short, the Redmi 15 can run popular titles comfortably, but it’s not the powerhouse its specs might suggest.
Big display and large battery give it an edge
The 6.9-inch flat FHD+ display is massive, and that alone enhances immersion. On paper, the 144Hz refresh rate sounds like a headline feature, but the catch is that it only applies to select apps. Neither COD Mobile nor BGMI supports even 90 FPS on this device, so the 144Hz claim feels more like a marketing checkbox than a gaming reality. That said, UI animations and basic gameplay do feel smooth and responsive.
Where the Redmi 15 genuinely shines is battery life. That 7,000mAh unit is a beast. With mixed usage (including about an hour of gaming daily), the phone easily stretched to two days. In our tests, 90 minutes of continuous gaming consumed just 18 per cent of the battery, which is impressive endurance. However, the Vivo T4x’s 6,500mAh cell performed better, as it drained 15 per cent in the same test.
Thermal management is also solid. After 30 minutes of gaming, the temperature rose by only 4 degrees Celsius, noticeable but never uncomfortable, and without aggressive throttling.
Is Redmi’s gaming push more hype than reality?
The Redmi 15 5G has the right ingredients on paper: big battery, big screen, and a flashy 144Hz spec. However, this doesn’t translate well to a real-world gaming experience. COD and BGMI run fine, but not at the frame rates or graphics settings that competitors already deliver. The 144Hz claim doesn’t translate into actual gaming benefits, which makes it feel more like a gimmick than a gamer’s delight.
So, should you buy the Redmi 15 5G for gaming? If your focus is long gaming sessions without worrying about battery, this phone fits the bill. But if you care about high FPS and advanced graphics, you’ll be better served by alternatives like the Vivo T4x. In my view, the Redmi 15 is less of a “gaming phone” and more of an endurance-first all-rounder that happens to play games decently. And that’s not necessarily a bad thing, as long as you don’t buy into the hype.
