Suggestions for microSD

[Pierre118]

Not sure what "slow wake" is - but I'm guessing it means the phone is slow to wake up when you press home/power? I had the phone a day before I put the card in on Wednesday and have noticed nothing untoward since I did put the card in - so I'd say there are no slow wake issues, at least for me.

There are definitely issues with third party tools for me - FX won't grant access at all. I downloaded the latest ES File Explorer and it did grant access but will only create 0 byte files on the copy. The built in app "My Files" works fine though. :silly:

That's exactly what i meant with slow wake

So Samsung has decided to give 3rd-party apps different permissions(no permissions?) then their own 'My Files'. This was on my Note 3 and Note 4 the same, but after rooting it the problem could be solved. But, because I want to use Samsung Pay in the future I decided not to root my S7.

 

[ekjl]

I ended up buying the 64GB Lexar 1800x USH-II. Regardless if the phone doesn't support UHS-II, you will still get a faster speed on UHS-I and faster than any other card you can buy.

 

[flarbear]

Using a Lexar 128GB Professional 1000x Micro SDXC UHS-II U3

Benched at Read 303.41MB/s, Write 42.70MB/s using A1 SD Bench.

That read speed is only possible if the card reader has the extra pins for UHS-II. Someone had said that they heard it did not have those pins, but this would be a clear indication that it does. Have you done any large file copies from the card to the internal storage? (which will be limited by the write speed of the internal storage, but that should be in the 150MB/s range)

Can you try AndroBench as well and see what that gives?

 

[jbfountain]

That read speed is only possible if the card reader has the extra pins for UHS-II. Someone had said that they heard it did not have those pins, but this would be a clear indication that it does. Have you done any large file copies from the card to the internal storage? (which will be limited by the write speed of the internal storage, but that should be in the 150MB/s range)

Can you try AndroBench as well and see what that gives?

I bought the Samsung Pro+ because I do not believe that the S7 or S7 Edge has UHS-II, but using a older version of ESFile Explorer I transfer 2.5gb of music. ESFile Explorer reported between 57 and 60 MB/s. I didn't time it, but it took much less than a minute.

Edit: I don't know about the rest of you, but I got a notification "SD card" "For transferring photos and media" I clicked on it and it lets me move folders to the SD card, and the system recognizes the changes.

Using XDA to unleash the power of Android in my S7 Edge, One M9, and S6 Edge Plus

 

[KINGDROID25]

I hope this information helps someone.. So if you use your Samsung pay to qualify to get their current promotion you can get a $30 gift card to a select few places.. I chose best buy.. Right now best buy has a promotion on Samsung Evo+ 128gb sdcard.. It's in sale for 49.99 which usually is 109.99.. If you use the 30 from a best buy gift card from Samsung pay you will pay $24 for a 128gb sdcard.. Which in my opinion is a steal.. Hope this helps..

 

[geccco]

I made a quick summary of the benchmarks in this thread so far, also included my SanDisk 64GB Extreme Plus.

View attachment 3680043

 

[jabok]

That read speed is only possible if the card reader has the extra pins for UHS-II. Someone had said that they heard it did not have those pins, but this would be a clear indication that it does. Have you done any large file copies from the card to the internal storage? (which will be limited by the write speed of the internal storage, but that should be in the 150MB/s range)

Can you try AndroBench as well and see what that gives?

I installed Androbench and I can't see an option in there to bench the SD card? :silly:

I copied those 5 files adding up to 1521MB again and it was consistent in write speed - about 41s (37MB/s). I copied them back to another location on internal and it took about 22s (so only about 72MB/s) - about half of what you were expecting? Perhaps A1 SD Bench isn't working right on this device/card yet? I don't know - if you can advise on anything else to try, I'd be happy to.

Edit: Forgive me, A1 SD bench, for some reason is listing SD Card, SD Card, Internal Memory and RAM (sometimes it even adds on a THIRD SD card that seems to be the same as Internal Memory again). The second SD Card and Internal Memory seem to be (roughly) the same thing but bench differently. The first SD Card is actually the Lexar and benches at 65.97MB/s and 40.36MB/s. I apologise for the earlier information - I'm pretty sure A1 SD Bench is being flaky with me as I don't remember these multiple SD card listings the first time I used it!

 

[flarbear]

I installed Androbench and I can't see an option in there to bench the SD card? :silly:

First you need to go to the settings tab and choose the partition for the SD card - on mine it's something with 0000-0000 in the name.

Then just run a full benchmark and it tests a bunch of things, one of which is sequential and random read/writes (and then does a bunch of SQL, browser, camera, miscellaneous benchmarks which aren't interesting for our purposes here).

Edit: Forgive me, A1 SD bench, for some reason is listing SD Card, SD Card, Internal Memory and RAM (sometimes it even adds on a THIRD SD card that seems to be the same as Internal Memory again). The second SD Card and Internal Memory seem to be (roughly) the same thing but bench differently. The first SD Card is actually the Lexar and benches at 65.97MB/s and 40.36MB/s. I apologise for the earlier information - I'm pretty sure A1 SD Bench is being flaky with me as I don't remember these multiple SD card listings the first time I used it!

Yes, their labeling is very confusing. They do list the sizes so you can tell which is which (unless you are benchmarking a 24gb card, which would be hard to find).

 

[flarbear]

I made a quick summary of the benchmarks in this thread so far, also included my SanDisk 64GB Extreme Plus.

View attachment 3680043

You might want to revise the Lexar 1000x numbers, the post following yours identifies that the speeds were being measured on the wrong partition.

(And at some point I should probably start collecting benchmark result links in the OP. I'll work on that soon...)

 

[jabok]

First you need to go to the settings tab and choose the partition for the SD card - on mine it's something with 0000-0000 in the name.

Then just run a full benchmark and it tests a bunch of things, one of which is sequential and random read/writes (and then does a bunch of SQL, browser, camera, miscellaneous benchmarks which aren't interesting for our purposes here).



Yes, their labeling is very confusing. They do list the sizes so you can tell which is which (unless you are benchmarking a 24gb card, which would be hard to find).

Yeah, I did go through the settings, there was nothing there - it required a reboot to pick up the card, assuming /storage/1473-F1BC is it. Now it won't run against that, crashes after a few seconds. :crying:

A1 SD is more than a labelling issue - it's very flaky with me! Just been doing various things like a test with reboot and it will assign values from a tested device to a different one after the reboot.

Anyway, the 5 big file copies I did is "real world" I guess... sorry for any confusion I've caused with this testing! :silly:

 

[geccco]

You might want to revise the Lexar 1000x numbers, the post following yours identifies that the speeds were being measured on the wrong partition.

(And at some point I should probably start collecting benchmark result links in the OP. I'll work on that soon...)

I've updated the chart

View attachment 3680268

 

[Ariozo]

Bought the SanDisk Ultra Sdsqunc 128gb, and so far so good.
Only stutter I got on the s7 so far is the photo app when it should show/load pictures from time to time.
And of course the "slow" wait time when you want to go into the App manager.

Here is the AndroBench from my Sd.

Skickat från min SM-G935F via Tapatalk

 

[combo1234]

Using a Lexar 128GB Professional 1000x Micro SDXC UHS-II U3

Benched at Read 303.41MB/s, Write 42.70MB/s using A1 SD Bench.

Does it mean that S7 edge support UHS-II ?

I planned to preorder the Samsung pro+ ,but it seems that it can get much higher reader speed and write.


Anyone ?

 

[jabok]

Does it mean that S7 edge support UHS-II ?

I planned to preorder the Samsung pro+ ,but it seems that it can get much higher reader speed and write.


Anyone ?

The 300 read was a mistake - A1 SD Bench is doing flaky things with me, sometimes reporting figures against the wrong device after a reboot test. The actual reads are about 66. Apologies for that.

 

[Vanquiz]

Bought the SanDisk Ultra Sdsqunc 128gb, and so far so good.
Only stutter I got on the s7 so far is the photo app when it should show/load pictures from time to time.
And of course the "slow" wait time when you want to go into the App manager.

Here is the AndroBench from my Sd.

Skickat från min SM-G935F via Tapatalk

Something is wrong, maybe you benchmark the internal storage?

 

[Ariozo]

Something is wrong, maybe you benchmark the internal storage?

Of course, did not check photo before upload..

Skickat från min SM-G935F via Tapatalk

 

[lostsoul1]

All this stress of finding out who or what is faster. For the average person that has questions ill make it all simple..

1) get a good brand sd card

2) get the size you want

3) unless you plan on transferring files to and from your phone ALL the time and very impatient (ie waiting a minute or 2 will kill you), then worry about faster read/write speeds.

4) Most cards will do writes of 15MB and up which is fine with HD and 4K recording. Having a card do 1000MB/s write is not going to change the fixed bit-rate the s7 records in. Its like putting a prius vs a lambo . Lambo can go much faster but if the speed limit is 35, both will do it.

The only other thing that can affect and is important is burst shots from the camera, but that look like Samsung sends those to the internal memory..

 

[flarbear]

Yeah, I did go through the settings, there was nothing there - it required a reboot to pick up the card, assuming /storage/1473-F1BC is it. Now it won't run against that, crashes after a few seconds. :crying:

A1 SD is more than a labelling issue - it's very flaky with me! Just been doing various things like a test with reboot and it will assign values from a tested device to a different one after the reboot.

Anyway, the 5 big file copies I did is "real world" I guess... sorry for any confusion I've caused with this testing! :silly:

Sounds frustrating. For the record, here is a screen shot of the settings tab where you should be able to change the partition to test in Androbench:

 

[lerac]

Ok guys I have been reading these pages back and forward and everybody seems to make their own choice of course. I am looking for something that has best of both worlds fast but still has the space I need. Yeah I know what is fast depends on what you are doing but since I do all kind of things I don't know so I rather be prepared instead of annoyed being limited. Meaning I am looking for 128GB card limiting loads of options. I also noticed browsing online using benchmark tools is pointless because in real life test numbers can be totally different.

After hours of research I found 1 guy claiming to have talked to samsung for more than 20 minutes to get to know whether the samsung galaxy s7 has Samsung UHS-I or UHS-II build in. the conclusion was it has UHS-I.

Now there are 2 options if you want the fastest not paying 200 dollars for lexar 1800x:
- Samsung 128GB microSDXC Pro Plus UHS-I U3. 88 euro's.
- Lexar 128GB Micro SD 1000x UHS-II U3. 94 euro's.

I am really in doubt between these 2. The lexar also is backwards compatible with UHS1. I was wondering that maybe it is worth it paying a couple of euro's extra for lexar yust to have the option when it is not in s7 or in future phone that will support UHS2. On top of it you also get usb card reader along with it.

What do you guys suggest. Perhaps backwards compatibilty will cause it to work slower? I have no idea. I can find very little to no information about these 2 cards compared to each other. Especially related to Galaxy S7.

 

[flarbear]

I am using the 128GB Lexar 1800 with my S7 Edge and am getting 62.26/50.81 MB/s

Can you confirm which benchmark you are using (A1 SD? Androbench?) and possibly post a screen shot of the results?