Galaxy S25 Edge has impressive battery life despite being only 5.8mm thin

At just 5.8mm thin and weighing 163g, the Galaxy S25 Edge is the thinnest smartphone ever in the history of the Galaxy S generation.

The design feels stylish , sleek, and easy to hold, but it also raises a big question: does such a thin device have enough battery life? Reviews from tech reviewers have revealed the truth about this.

Galaxy S25 Edge with a thickness of only 5.8mm (Photo: Samsung).

Galaxy S25 Edge has better battery life than expected

The ReLab technology YouTube channel conducted a battery test under standard conditions, continuously using popular tasks such as TikTok, Shopee, YouTube, PUBG and running performance scores. The total onscreen usage time (continuously on the screen) reached nearly 8 hours, only about 20 minutes less than the Galaxy S25 Ultra.

Relab's reviewer shared: "Samsung surprised me. I don't understand how they optimized, but the results don't lie. A 5.8mm thin device that reaches nearly 8 hours of onscreen time is unprecedented."

Through testing by YouTube channel ReLab, after 8 hours of continuous use, the Galaxy S25 Edge had 8% battery left, while the Galaxy S25 Ultra had 14% battery left (Photo: Samsung).

Meanwhile, YouTube channel Vat Vo Studio also put the Galaxy S25 Edge through a lengthy mixed review, including tasks such as watching videos , surfing Facebook, using Shopee, Messenger, and recording 4K videos.

The results show that the Galaxy S25 Edge keeps the battery stable, the temperature fluctuates around 39 degrees Celsius, and especially the battery life is not inferior to the Galaxy S25 while the screen is significantly larger.

Reviewer Ruong Cong Nghe commented: "It's hard to understand why such a thin device doesn't get hot and plays games better than the Galaxy S25 Ultra. Samsung has really 'magically' created a 3,900 mAh battery."

Vat Vo Studio evaluates that the Galaxy S25 Edge has a battery life that surpasses the Galaxy S25, despite being thinner and having a larger screen (Photo: Samsung).

From an international perspective, Korean YouTuber Amazing Ddongchan also conducted a battery test for the Galaxy S25 Edge under real-world usage conditions for more than 14 hours. According to the measured results, the Galaxy S25 Edge only differed by about 10-15% compared to the Galaxy S25+, a model with a significantly larger battery.

According to the owner of the Amazing Ddongchan channel, this difference is completely acceptable compared to the difference in design. "Samsung has succeeded in controlling the factors that cause consumption such as temperature and performance," Amazing Ddongchan commented, and also evaluated the Galaxy S25 Edge as one of the rare thin and light devices that can maintain a durable battery life throughout the day.

Korean reviewer Amazing Ddongchan highly appreciated the battery life of the Galaxy S25 Edge, especially considering the device's ultra-slim design (Photo: Samsung).

The PhoneArena review site also gave positive numbers. In three test scenarios including web surfing, video watching and 3D gaming, the Galaxy S25 Edge achieved 16 hours and 40 minutes, 7 hours and 44 minutes and 9 hours and 38 minutes respectively - close to or surpassing some mid-range models with larger batteries.

Battery evaluation results from PhoneArena (Photo: Samsung).

Hardware-software optimization is the key

According to the manufacturer, the Galaxy S25 Edge's positive battery life results come from two key factors: the efficient processor and Samsung's software optimization capabilities.

The entire Galaxy S25 series, including the Galaxy S25 Edge, is powered by the Snapdragon 8 Elite for Galaxy chip, a chip line manufactured by Qualcomm on a 3nm process and optimized specifically for Samsung devices.

According to the manufacturer, the Snapdragon 8 Elite is up to 45% more energy efficient than the previous generation, thereby helping to reduce power consumption in most tasks. Samsung has also integrated a special cooling system for the Galaxy S25 Edge to match the slim body of this device, but still achieve high efficiency.

The Snapdragon 8 Elite for Galaxy chip is not only powerful, but also more energy efficient than the previous generation (Photo: Samsung).

Besides hardware, the factor that cannot be ignored is Samsung's software optimization ability. In battery reviews, both Relab and Vat Vo Studio noted that the Galaxy S25 Edge maintained a stable temperature even when recording 4K video or playing PUBG at high settings. This shows that the background task management system, AI performance allocation and battery saving mechanism have been carefully refined by Samsung, ensuring that the device operates efficiently while still maintaining the necessary performance.

Galaxy S25 Edge - thin and light without sacrificing performance

The Galaxy S25 Edge is a unique smartphone where sophisticated design is no longer the price to pay for performance or experience. With a body of only 5.8mm, but still owning the Snapdragon 8 Elite chip, 200MP camera, sharp screen and durable titanium frame, this device has all the elements of a true flagship (the company's elite product).

More than just beautiful, the Galaxy S25 Edge is a testament to pioneering spirit, redefining expectations and laying the foundation for the next generation of thin and light phones.

Vietnamese users can experience the limited edition at Samsung West Lake (Hanoi), Samsung 68 (HCMC) and receive incentives at Samsung online stores and The Gioi Di Dong .

Source: https://dantri.com.vn/cong-nghe/galaxy-s25-edge-so-huu-thoi-luong-pin-an-tuong-du-chi-mong-58mm-20250519210143233.htm