Top 10 smartphones with the best battery life in 2025

Here are the 10 smartphones with the longest battery life in 2025, according to expert reviews.

Over the past year, smartphones have improved in many aspects. They now take better photos and offer more power, especially for graphics-intensive games.

Moreover, an increasing number of smartphones now come with AI-powered features, enabling advanced on-device processing for faster performance and enhanced privacy.

However, all of these advancements are meaningless if your phone doesn’t last long on a single charge. A high-end smartphone with poor battery life can be inconvenient for both work and daily life.

According to experts, improved battery life is the most significant advancement for smartphones in 2025. If you're considering buying a long-lasting phone or replacing your battery for optimal performance, HAGA Smartech is ready to assist you with fast and genuine battery upgrades and repair services.

1. 10 smartphones with the longest battery life in 2025

2. Why has smartphone battery life been improving?

One reason is the larger battery size. The iPhone 16 Pro Max has a bigger battery than the iPhone 15 Pro Max. Meanwhile, the Galaxy S24 Ultra comes with a 5,000 mAh battery, providing users with more power from a single large cell.

In addition, the chips inside smartphones are becoming more power-efficient. In the Android segment, the Snapdragon 8 Gen 3 powers many flagship devices, including the Galaxy S24 and OnePlus 12.

For iPhones, Apple is reaping the benefits of using a 3-nanometer process for its new A18 chip inside the iPhone 16 models. As silicon shrinks, transistors are placed closer together, enhancing both performance and efficiency.

Similar to the A18 silicon, the new Snapdragon 8 Elite—set to power the Asus ROG Phone 9 Pro and the upcoming Galaxy S25 models—also utilizes a 3nm process. As a result, consumers can expect better battery life from the latest smartphones in 2025, even if their battery sizes do not increase significantly.

3. Need a battery upgrade or a performance check for your phone?

Even if you own a high-end smartphone, its battery life will gradually decline over time. If you notice that your phone’s battery drains quickly, takes too long to charge, or shows signs of wear, visit HAGA Smartech for a professional battery check and genuine replacement.

HAGA Smartech provides high-quality battery replacement services for various smartphone brands, including iPhone, Samsung, and Xiaomi, using authentic parts and a fast, professional process. Additionally, we offer essential accessories such as fast chargers, charging cables, and power banks to enhance your smartphone experience.

📍 Address: 18 Nguyễn Văn Hưởng, Thảo Điền Ward, Thủ Đức City, Ho Chi Minh City

📞 Contact: 0925 435 688 - 0922 741 333

Visit HAGA Smartech to keep your device running smoothly and lasting longer!