CultofMac conducted a survey on whether iOS 5.1 would improve the battery life of iPhone 4S. Nearly 6,000 users participated in the poll. Among them, only 50% of iPhone 4S users said that iOS 5.1 did improve battery performance. 13% of users said that iOS 5.1 battery life has doubled compared to iOS 5.0.1, 20% said that it has improved somewhat, but still needs to be charged every day, and 17% said that iOS 5.1 battery life has only slightly improved. 16% of users said that iOS 5.1 has the same battery life as iOS 5.0.1, and 9% of users said that iOS 5.1 has worse battery life than iOS 5.0.1. It seems that Apple has indeed made efforts to improve the battery life of iOS 5.1, but this software update still cannot solve all battery problems. |
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