Top 3 big battery smartphones in 2025: Battery longevity has become the biggest factor in purchasing a new smartphone. Not only do users want power-dense performance, but also long-life phones lasting more than one day on a single charge. In 2025, several premium smartphones have stepped up to deliver just that by matching massive battery capacity with high-end features.
iQOO 13 5G
iQOO 13 5G is a beast featuring a humongous 6000mAh battery that supports flash charging through a USB Type-C port. The flagship variant is packed with the top-of-the-line Snapdragon 8 Elite chipset, which in itself is a performance beast. It is equipped with a 6.82-inch QHD+ LTPO AMOLED screen that also features a 144Hz refresh rate. The smartphone has a triple camera setup on the rear with three 50MP cameras, ring LED flash, and a 32MP front camera. It comes with industry-leading durability with IP68 and IP69 certification. Although it is impressive with night mode and performance in general, it does not have a periscope lens and comes with a number of pre-installed apps.
vivo X200
Vivo X200 also comes with decent battery life with a 5800mAh cell and flash charging support. It is powered by the MediaTek Dimensity 9400 chip and comes with 12GB RAM for smooth multitasking. It comes with a 6.67-inch FHD+ AMOLED display with a 120Hz refresh rate. It comes with a triple 50MP camera with an LED flash at the back and a 32MP camera at the front. Vivo X200 is renowned for its incredible photography and videography capabilities. The strong build and vibrant screen render it most ideal for multimedia and productivity purposes, but the lack of wireless charging and certain bloatware apps keeps it slightly in the back.
Xiaomi 15
It is powered by the Snapdragon 8 Elite processor and features 12GB RAM. It has a 6.36-inch FHD+ LTPO OLED display with a 120Hz screen refresh rate. Camera has a triple 50MP Leica camera setup with dual-color LED flash and 32MP selfie camera. It offers excellent performance and smooth battery backup in a light, compact design. It may be prone to patchy performance throttling when subjected to heavy loading and mild contrast fall in camera shots.
Massive Battery and Fast Charging Combo
All the four smartphones include high capacity batteries and fast charging capabilities that appeal to power users. iQOO 13 and OnePlus 13 include 6000mAh batteries that ensure long usage time, while Xiaomi 15 and Vivo X200 seek to offer balanced power using slightly smaller but efficient batteries. All four also include support for some form of fast charging, reducing downtime for busy people.