Are advanced MicroSD cards any good for smartphones?

[Yashraj]

So I am switching from iPhone to S8 and I am looking for SD cards to buy. The last one I bought was Class 10 (U1) like 8 years ago. It appears there are some new standards which go upto UHS-III and boast solid speeds (U3). However, it also looks like they are aimed at video recording (GoPro/dones) use.
Do any of these advanced cards (U3) offer significant speed improvement in a smartphone like Galaxy S8 or should I just stick to U1?

 

[peachpuff]

What do you plan on putting on the sdcard? With my samsung evo+ card 80read/20write the gallery thumbnail loading speeds are dog slow. If you're just going to put miscellaneous stuff any card will do, 64gb of storage should be enough.

 

[Yashraj]

Damn thats slow... I do plan to use it for occasionally transferring movies, etc. but I am just not a fan of lags/slow loading like in your case which is why I was considering the advanced one. But if that's the general case then I guess an upgrade might be worth it :/

 

[faaaaq]

Thumbnail loading isnt really a factor of the memory card.. My Note 5 some gallery thumbnails NEVER load, and most others take a while, and thats all from internal storage. EVO+ cards in phones are generally great and shouldnt give any noticeable lag on top of any lag the phone/app itself shows. The biggest thing youll notice between cards is, obviously, transfer rates. If you will be copying data to/from the phone from/to another device, a good quality high-speed card makes a world of difference. anything with a real 80MB/s read speed will be fine, just make sure you arent getting a clone, so doublecheck who the seller is if ordering from Amazon, and to be safe DO NOT order from eBay.

 

[peachpuff]

Damn thats slow... I do plan to use it for occasionally transferring movies, etc. but I am just not a fan of lags/slow loading like in your case which is why I was considering the advanced one. But if that's the general case then I guess an upgrade might be worth it :/

For movies you should be fine, for me its loading a 1000 thumbnails that's the slow part, once they're loaded everything is fine. But from time to time it has to reload the thumbnails and its somewhat annoying.

 

[choccy31]

There is an article somwhere floating around from last week on what cards to use etc.

If you use for photos and 4k vid etc the faster the better basically.

 

[ewokuk]

I think the more relevant question/answer here is whether the phones will support UHS-II and UHS-III. A few people have been asking that and I have not yet seen an answer. Since II and III have an extra set of pins, I would imagine it requires the host device to specifically support it by being able to use those extra pins. *If* they are backwards compatible (I don't know), then the cards might work anyway but would work at slow speed if the device doesn't support II or III and be a waste of money (obviously if not backwards compatible then it wouldnt work at all).

I still haven't seen an answer yet and as always samsung's specs dont tell you anything. We probably need someone with one of the faster cards and an S8 to try it out with A1 benchmark and see what speeds they get.

 

[skrubol]

I don't think it supports UHS II or 3. I read somewhere that it supports UFS, which is Samsung's own higher speed format, which I don't think is as backwards compatible.
UHS I cards also have their own speed classes, U1 and U3 currently I think. U3 just guarantees higher sustained write speed (30MBps,) which is well within the UHS I maximum transfer speed.
If you're confused, the UHS class is the interface speed. The U1 or U3 are the minimum speed of the specific card. UHS I max speed is a little over 100MBps iirc.