According to a recent source review by ZDNet, a detailed charging speed test was conducted on three flagship phones—the iPhone 17 Pro Max, Samsung Galaxy S26 Ultra, and OnePlus 15—using their original chargers as well as Anker third-party alternatives. The review provides insights into how actual charging performance stacks up against manufacturer claims.
- Samsung S26 Ultra reached and slightly exceeded 60W peak charging speeds.
- OnePlus 15’s charging speed peaked below 50W versus advertised 120W.
- Third-party chargers from Anker charged Samsung and OnePlus devices faster than OEM options.
Product angle
The source review focused on real-world testing of charging performance across three flagship smartphones, comparing their advertised maximum speeds to actual results using both original and third-party chargers. This approach highlights the gap between marketing claims and actual charging behavior during typical use, emphasizing the importance of considering real test data when evaluating fast-charge capabilities.
This testing also revealed that maximum charging power is usually only sustained during a small portion of the charging cycle, with speeds dropping off to preserve battery life and prevent overheating. The surprisingly strong performance of third-party chargers, such as those from Anker, further complicates the understanding of how much value OEM chargers bring in fast-charging scenarios.
Best for / avoid if
This testing suggests the Samsung Galaxy S26 Ultra is best for users who want a reliably fast charge close to the rated 60W, especially given its ability to fully recharge in under an hour and benefit from third-party charging accessories. It suits customers who prioritize quick charging without overpaying for official chargers.
Conversely, buyers considering the OnePlus 15 should be cautious if expecting the touted 120W charging speeds, as the phone did not reach this in testing and instead performed closer to mid-tier speeds around 46W. Users who value maximum advertised fast-charge specs or own multiple phones might want to consider alternatives for consistent rapid charging.
Pricing and alternatives to check
Neither Apple nor Samsung include wall plugs with their latest flagships; Apple offers a plug separately for $71.25, while Samsung provides their own for purchase. Third-party alternatives like Anker’s 65W charger and USB-C cables priced under $60 demonstrated superior or comparable performance at better price points, indicating viable options to achieve faster charging economically.
Those interested in exploring alternatives should also consider the brand’s reputation for charger safety and compatibility. Anker stood out in the review for affordability without sacrificing performance. Buyers balancing cost versus speed may find third-party chargers a compelling choice to optimize charging speed and overall value.