
Best 5G phones with vapor cooling chamber under ₹20,000: In 2026, finding 5G smartphones under a ₹20K budget with advanced thermal management like vapor cooling is possible, primarily in gaming-centric models from brands like Samsung, Poco, and iQOO. In case you are also looking for a 5G smartphone that comes with vapor cooling to maintain performance during heavy multitasking or extended gaming sessions, then here I have provided the top 5 best phones available in India that feature in-hand cooling technology within this budget.
Samsung Galaxy M35 5G phone is a standout in the budget segment for including a dedicated vapor cooling chamber to improve heat dissipation, and you can ensure smooth graphics while gaming and multitasking. The phone also features a 6.6-inch Super AMOLED display with a 120 Hz refresh rate, and it is protected by Corning Gorilla Glass Victus+.
The phone is powered by the Exynos 1380 processor. It has a massive 6000 mAh battery pack that supports 25W fast charging, and it is currently available at approximately ₹14,999 to ₹16,319.
POCO X7 5G phone often utilizes advanced thermal management such as graphite cooling or vapor chambers to support its high-performance Dimensity chipset. It also boasts a large 6.67-inch 1.5K curved AMOLED display with a peak brightness of 3000 nits. It is powered by the MediaTek Dimensity 7300 Ultra processor. The phone is equipped with a 5110 mAh battery, which features 45W TurboCharge, and it reaches 100% in roughly 52 minutes. The phone comes at a starting price point of ₹16,999.
The iQOO Z10 5G phone is designed for gamers and includes next-level thermal management to support the Snapdragon 7s Gen 3 processor, and it also features India’s first 7300 mAh ultra-capacity battery in a slim 7.9 mm body. The phone has a curved AMOLED display with 5000 nits peak brightness, and it supports 90W fast charging. The phone can be purchased around ₹19,999 after bank offers.
The Realme P4 5G phone utilizes high-efficiency cooling to manage its power-heavy 7000 mAh battery and a Dimensity 7400 Ultra processor. The phone also features a 6.77-inch HyperGlow AMOLED display with a 144 Hz refresh rate, which provides smooth scrolling, and it has a 50 MP main camera with optical image stabilization.
The phone features a massive 7000 mAh battery pack with 80W ultra charging support, and it is currently priced approximately ₹18,499 to ₹18,999.

The Infinix GT 30 5G phone is specifically built for gaming, often incorporating vapor cooling or specialized Mecha cooling systems to prevent throttling. The phone is powered by a MediaTek Dimensity 7400 processor, and it features a 6.78-inch LTPS AMOLED display with a 144 Hz refresh rate. The phone also features a massive 5500 mAh battery pack, and it lasts up to 2 days and supports 45W fast charging. The phone is priced approximately ₹19,499.