Oppo Find X8 Ultra vs Galaxy S24 Ultra: Battery Drain Comparison
Battery drain is one of the most important real-world tests for any flagship phone. While specs and features get the headlines, how long a device lasts under regular use—and how much battery it loses during heavy tasks—can make or break the user experience. In comparing the Oppo Find X8 Ultra and Samsung Galaxy S24 Ultra, we see different strengths and compromises in their battery behavior.
The Oppo Find X8 Ultra is rumored to house a large 6,100 mAh battery, one of the bigger capacities in its class. In early battery tests by reviewers, the Find X8 Ultra lasted around 8 hours 56 minutes in their full mixed-use battery estimate. In specific scenarios, it achieved about 23 hours 36 minutes of web browsing, 11 hours 1 minute of video playback, and 12 hours 47 minutes of gaming performance. These numbers suggest that the device handles battery drain well even under demanding conditions. Its fast 100W wired charging further mitigates drain concerns by allowing quick top-ups.
By contrast, the Galaxy S24 Ultra features a 5,000 mAh battery. In official and third-party tests, the S24 Ultra showed mixed battery performance. While it handled lighter use reasonably, it has faced criticism under heavier workloads and after software updates. Reviewers and users report that battery longevity seems to decline after prolonged use or certain system updates. In one test, the S24 Ultra logged 56 hours of autonomy under moderate usage, but its performance dropped in more realistic mixed-use scenarios. Some users have observed rapid battery drain, especially after updates, and nighttime losses in standby mode.
When comparing drain under heavy use, Oppo’s larger battery gives it an inherent advantage. During extended gaming or video playback, the Find X8 Ultra is likely to lose a smaller percentage of battery per hour compared to the S24 Ultra. In tests, the Find X8 Ultra’s 12h 47m gaming endurance suggests it can sustain long sessions with comparatively low drain. The S24 Ultra, though capable, tends to show more aggressive battery drop under similar stress.
Standby and background drain are also differentiating factors. Some Galaxy S24 Ultra users report that after a period of low activity, the battery drops noticeably more than expected—losing several percentage points even when mostly idle. These reports are especially frequent following system updates, indicating software-level inefficiencies in power management. In contrast, the Oppo Find X8 Ultra’s tests do not show extreme standby drain, and its browsing and video benchmarks suggest it maintains battery levels well across use and rest.
In daily mixed usage, the Find X8 Ultra is likely to offer more comfortable margins. Thanks to its higher capacity and efficient management, users may see full-day to day-and-a-half use without excessive anxiety about battery. The S24 Ultra can also last a full day in lighter use, but under intensive workloads or after system changes, users may need to recharge earlier.
However, charging behavior also plays a role in perceived drain. The Oppo device supports fast charging that replenishes battery quickly, reducing the time one needs to worry about drain. The S24 Ultra’s charging is solid but more conservative, making users more aware of remaining battery. In real life, the faster you can top-up, the less drain feels like a problem.
Ultimately, in a head-to-head battery drain comparison, the Oppo Find X8 Ultra appears to have the upper hand. Its higher capacity, strong endurance in tests, and efficient usage under stress make it more resilient against drain. The Galaxy S24 Ultra is capable and holds up under moderate conditions, but it may show more vulnerabilities under heavy load or after software updates. For users who push their devices hard, the Find X8 Ultra is likely to feel more dependable in terms of battery life and drain resistance.
