In 2025, Chinese domestic smartphones will keep on taking the lead in terms of battery capacity. Multiple models boast batteries exceeding 6500mAh, with some even reaching 7000mAh. In contrast, flagship models from Apple and Samsung mostly feature battery capacities hovering around the 5000mAh mark. This disparity mainly arises from differences in international transportation regulations, market strategies, and choices in technological approaches.

The United Nations classifies lithium batteries with a single cell exceeding 20Wh (roughly equivalent to 5400mAh) as hazardous materials for international transportation, which drives up logistics costs. As global shipping behemoths, Apple and Samsung opt to keep battery capacities within safe thresholds to manage expenses effectively. Conversely, Chinese domestic smartphones, primarily vying for market share within the domestic arena, are spared from the hefty international transportation costs. Consequently, they lean more towards boosting battery capacities to gain a competitive edge.

Furthermore, Chinese domestic smartphone manufacturers persistently innovate in battery technology. They adopt measures such as silicon-carbon anode batteries and optimize packaging processes, striking a harmonious balance between a large battery capacity and a sleek, slim design. On the flip side, Apple and Samsung encounter constraints in battery structure design due to regulatory requirements, such as the EU's mandate for removable battery designs, which limits their flexibility in design choices.

Hence, Chinese domestic smartphones manage to sustain a continuous lead in battery capacity.