Along with your results please post a screenshot, the phone (7 or 7 Plus), and capacity.
Apps that can test storage speed are:
"Phone Doctor Plus" ($0.99) by Idea Mobile Tech inc.
https://itunes.apple.com/us/app/phone-doctor-plus/id565111904
Note: app updated to support iPhone 7, iPhone 7 Plus and iOS 10.
"PerformanceTest Mobile" (free) by PassMark Software Inc
https://itunes.apple.com/us/app/performancetest-mobile/id494438360
Note: app last updated June 2012.
For comparison the iPhone 6s/6s Plus results are
Model: read/write (MB/s)
16GB: 854/45
64GB: 1701/151
128GB: 1840/279
Source: http://www.thessdreview.com/daily-news/latest-buzz/iphone-6ss-nvme-controller-and-speed-dictated-by-device-capacity/2
iPhone 7 read/write (MB/s)
32GB:
625/70
362/42.6
128GB:
1136/527
256GB:
869/252
iPhone 7 Plus read/write (MB/s)
32GB:
971/71
933/123
904/65, 779/66, 730/65
793/80.7
633/38.9
128GB:
1163/518
1133/531
1117/511
964/315, 964/96, 348/96
256GB:
1195/603
1190/614
1176/614
1169/589
1166/578
1165/604
1153/620
960/367
Data collected from this thread as well as
1. https://forums.macrumors.com/thread...ta-write-speeds-than-other-capacities.2007747
2. https://forums.macrumors.com/threads/write-speeds-with-lower-capacity-iphone-7.2007712
3. https://www.reddit.com/r/iphone/comments/54jf28/storage_performance_differences/d82hzfb
Apps that can test storage speed are:
"Phone Doctor Plus" ($0.99) by Idea Mobile Tech inc.
https://itunes.apple.com/us/app/phone-doctor-plus/id565111904
Note: app updated to support iPhone 7, iPhone 7 Plus and iOS 10.
"PerformanceTest Mobile" (free) by PassMark Software Inc
https://itunes.apple.com/us/app/performancetest-mobile/id494438360
Note: app last updated June 2012.
For comparison the iPhone 6s/6s Plus results are
Model: read/write (MB/s)
16GB: 854/45
64GB: 1701/151
128GB: 1840/279
Source: http://www.thessdreview.com/daily-news/latest-buzz/iphone-6ss-nvme-controller-and-speed-dictated-by-device-capacity/2
iPhone 7 read/write (MB/s)
32GB:
625/70
362/42.6
128GB:
1136/527
256GB:
869/252
iPhone 7 Plus read/write (MB/s)
32GB:
971/71
933/123
904/65, 779/66, 730/65
793/80.7
633/38.9
128GB:
1163/518
1133/531
1117/511
964/315, 964/96, 348/96
256GB:
1195/603
1190/614
1176/614
1169/589
1166/578
1165/604
1153/620
960/367
Data collected from this thread as well as
1. https://forums.macrumors.com/thread...ta-write-speeds-than-other-capacities.2007747
2. https://forums.macrumors.com/threads/write-speeds-with-lower-capacity-iphone-7.2007712
3. https://www.reddit.com/r/iphone/comments/54jf28/storage_performance_differences/d82hzfb
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