Smartphone makers have been steadily increasing battery capacities in recent months. March 2026 will see a handful of phones with huge batteries, including the Honor Magic V6, which offers one of the largest batteries on a foldable phone. Some other models even cross the 9,000mAh and 10,000mAh thresholds, signalling a clear industry shift toward longer battery life. Here’s a look at the phones with huge batteries that have launched or are expected to arrive in March 2026.
9Vivo X300 Ultra – Around 7,000mAh
The Vivo X300 Ultra is expected to debut in China around March 30. Early reports suggest that it may include a battery close to 7,000mAh, which is quite large for a flagship camera-focused smartphone.
The phone will be an ultimate phone for photography as it confirmed to feature a 200-megapixel Sony LYT-901 main camera, a 200-megapixel Samsung HP0 periscope telephoto camera, a 50-megapixel Sony LYT-818 ultra-wide lens, and a 5-megapixel multispectral sensor. The global launch is expected in Q2 2026.
