Average Smartphone Battery Capacity Surpasses Galaxy S26 Ultra at 5,291mAh
Key Takeaways
- ▸Average smartphone battery capacity reached 5,291mAh in January 2026, exceeding the Galaxy S26 Ultra's 5,000mAh battery
- ▸Silicon-carbon battery adoption by major manufacturers (HONOR, Xiaomi, OPPO, OnePlus, vivo) has driven the 400mAh year-on-year increase
- ▸China dominates the largest-battery smartphone market with 6 of top 10 best-sellers being China-exclusive, with regional battery transport regulations creating significant capacity disparities
Summary
According to Counterpoint Research, the average smartphone battery capacity reached 5,291mAh in January 2026, marking a significant 400mAh year-on-year increase and the largest yearly growth since December 2021. This milestone means that the average phone now exceeds Samsung's Galaxy S26 Ultra battery capacity of 5,000mAh. The surge has been driven by manufacturers increasingly adopting silicon-carbon battery technology, with companies like HONOR, Xiaomi, OPPO, OnePlus, and vivo leading the charge with devices offering substantially larger capacities.
China has emerged as the primary driver of this battery capacity boom, with six of the top 10 best-selling phones with 6,000mAh or larger batteries being China-exclusive devices. The HONOR X70 5G topped the list with an 8,300mAh battery, while the Redmi 15C 4G achieved best-seller status with conventional lithium-ion technology. Regional regulations regarding battery transport have created a disparity, with China maintaining an average battery capacity lead of over 1,000mAh compared to Europe and North America, where stricter transportation rules often necessitate smaller batteries in regional variants.
