Samsung unveiled two premium foldable smartphones on August 10. Along with the Galaxy Z Fold 4, the firm also unveiled the Samsung Galaxy Z Flip 4. Although the new Flip has a bigger battery, both devices are powered by the same low-power Snapdragon 8 Gen 1 SoC. The Galaxy Z Flip 4 has a little larger battery than its predecessor, though. The Galaxy Flip 4 has a 3700mAh battery, compared to the 3300mAh battery that comes with the Galaxy Z Flip 3. Which of these smartphones so genuinely offers a longer battery life?
In comparison to the Samsung Galaxy Flip 3, the Samsung Galaxy Z Flip 4 appears to have a 12% increase. Users’ biggest complaints about the Samsung Galaxy Z Flip 3 are its short battery life and sluggish charging speed. The new Flip 4 uses Samsung’s current flagship 25W fast charging technology, while the Samsung Galaxy Flip 3 can only support 15W charging.
Despite the nearly identical form sizes of the two smartphones, Samsung packed a bigger battery into the Flip 4—400 mAh more than the 3300mAh battery in the Samsung Galaxy Z Flip 3. But can the Samsung Galaxy Flip 4’s additional 400mAh battery help with its most pressing battery life issue? Let’s go right to the outcomes.
Related: Galaxy Z Flip 3 vs Galaxy Z Flip 4, What’s The Difference?
For comparison, both smartphones were set to the same brightness and were connected to WiFi. In addition, both phones were subjected to two battery drain tests: web browsing and watching YouTube videos. The outcome is depicted in the table below.
| Model | Web Browsing | YouTube Video |
| Samsung Galaxy Z Flip 3 | 10 hours 13 minutes | 7 hours 10 minutes |
| Samsung Galaxy Z Flip 4 | 11 hours 40 minutes | 9 hours 45 minutes |
In the first round, the Samsung Galaxy Z Flip 3 has a battery life of 10 hours and 13 minutes for web-based usage scenarios, and the Samsung Galaxy Z Flip 4 has a battery life of 11 hours and 40 minutes. However, the new Flip 4 outlasts its predecessor by an hour and 27 minutes when browsing the web. The following round involved watching a YouTube video. The Samsung Galaxy Z Flip 3 lasted 7 hours and 10 minutes in this test, while the Samsung Galaxy Z Flip 4 lasted 9 hours and 45 minutes. This means that when watching videos, the Flip 4 will last 2 hours and 35 minutes longer than the Flip 3.
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