iPhone Boot-Up Time Comparison: 6S vs. 6 vs. 5S vs. 5 vs. 4 vs. 3GS

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(Last Updated On: October 3, 2016)

The iPhone 6S is here, so we decided to do a boot-up time comparison across several generations of iPhones (6S, 6, 5S, 5, 4 and 3GS). The method was as follows:

  • Power off all phones.
  • Simultaneously start a digital timer at the same time (manually) as pressing the power up button.
  • Compare the boot up times

Obviously when the human element is involved in timing, there is a small degree of error. Despite that, and since the results are not that close, the results are pretty interesting and surprising.

  1. iPhone 6S – 20.99s
  2. iPhone 6 – 22.31s
  3. iPhone 4 – 26.83s
  4. iPhone 5S – 30.11s
  5. iPhone 3GS – 30.73s
  6. iPhone 5 – 34.16s

Not surprisingly, the iPhone 6S, with its high powered custom-designed 64-bit A9 chip, took first place. This chip claims a performance level once found only in desktop computers, up to 70 percent faster CPU performance, and up to 90 percent faster GPU performance, according to the Apple website. The iPhone 4 had a good showing, coming in third. Also of note is the last place finish of the iPhone 5.

Do you notice your iPhone 6S being faster (or slower) than previous generation iPhones? We’ve heard from many people that they felt like iOS 8 was a bit faster than iOS 9. Now that iOS 10 is out, as well as the iPhone 7, maybe people will have more to say about their iPhone speed. Let us know in the comments. If your phone is slow and beyond saving, iFixYouri offers cash for used phones through our buy-back program. We also offer a full range of iPhone Repair Services.

iPhone 6s Bootup Time Comparison