Best Battery Backup Mobile Phones

The OnePlus 15 is a jack of all trades, featuring top-tier performance, high refresh rate display and long battery life. However, it ditches the iconic OnePlus design for a generic look that doesn't have anything special to say about itself. The screen suffers a downgrade in resolution, and the same goes for the build quality and camera. It does not justify its high starting price, especially since there are some fairly good alternatives at lower prices.

The Oppo Find X9 Ultra is a superhuman in a market full of capable flagships – packing top-of-the-line specifications, incredible performance, and a long-lasting battery. The design turns heads too, and the point-and-shoot-like camera largely lives up to that promise. Its only kryptonite is the aggressive AI processing, which gets in the way of what could have been a more authentic photography experience. At over Rs 1.5 lakhs, the Find X9 Ultra caters to serious camera enthusiasts or those who refuse to settle for anything less than the best.

The Poco X8 Pro Max is the best thing Poco has ever done with their X series. Flagship-grade performance, a two-day battery and premium build at a mid-range price make it a no-brainer for most people. The cameras and HyperOS 3 still need work, but neither is a dealbreaker. Poco's first Pro Max is absolutely worth your money.

Redmi Note 17 Pro Max has its priorities straight. With a colossal battery and a large display, it's a media titan that just keeps on going. Its rugged shell is hefty, but it conceals a reliable performer that handles everyday tasks admirably and with enough leftover firepower to game long into the night. Its camera may catch a little too much light, and the audio could do with some equalising. But where it cannot outclass the competition, the Redmi Note 17 Pro Max outlasts them, making it perfect for anyone wishing to resolve their battery woes.

The iQOO 15R is a solid midrange smartphone that is built with gaming in mind. It delivers excellent performance in even the most demanding games, serving high frame rates, without sweating about overheating. The battery is impressively huge, and can easily last for two days on a single charge, and the software experience is smooth and enjoyable too. However, the cameras are average at best, but they do support 4K 60 FPS videos from both front and back sensors. Overall, the iQOO 15R is a love letter to gamers that won't disappoint hardcore players.

Poco X8 Power's massive battery delivers excellent backup, while the sharp AMOLED screen, capable main camera, stereo speakers and long software support make the experience well-rounded. The performance and average ultrawide camera are where Poco has cut corners. However, if battery life matters most, these compromises are easier to live with, as this Poco X8 Power doesn't just have power, but it knows how to make it last.

The Realme P4 Power is unmatched in battery life but also delivers a bright 1.5K AMOLED display, a stylish and sturdy design, as well as dependable day-to-day performance. While the cameras are just decent and software needs a minor cleanup, it remains a solid pick for those who prioritise battery over anything else. For the price, it's a reliable, long-lasting companion with a few compromises.

The OnePlus Nord CE 6 delivers a smooth, reliable everyday experience with a vibrant display, fluid software and exceptional battery life that easily lasts almost two days. It handles multitasking and casual gaming well, though performance isn't class-leading. The design is practical and comfortable, if not particularly distinctive. Cameras perform well in good lighting but can be inconsistent otherwise. If you can overlook these compromises, it's a dependable, fuss-free phone that gets the job done.