https://community.sony.rs/t5/z-series/sony-xperia-z2-maximum-supported-write-read-speed-for-microsd/m-p/3280935#M31523 4K requires about 7MB/s write speed, so do not worry, you will be good. Wed, 23 Jul 2014 17:52:31 GMT azzido 2014-07-23T17:52:31Z https://community.sony.rs/t5/z-series/sony-xperia-z2-maximum-supported-write-read-speed-for-microsd/m-p/3280931#M31519 <P>I am looking to buy one microSD card for my Xperia Z2 Phone (6503). My question is: &nbsp;how fast it can write data to an SD card. For what I know, these speeds depend of SD Card controller. If I will know approximative numbers I can acquire adequate microSD card. Right now I am trying to decide between: SanDisk SDSDQX-064G-U46A Extreme Plus 64 GB - 80 MB/s SanDisk SDSDQUA-128G-G46A Ultra 128 GB - 30MB/s Writing speeds for these microSD Cards are half of indicated reed sped numbers. I like 128 GB capacity of Ultra Card, but will not hesitate to buy faster 64 GB Extreme Plus Card.</P> Wed, 23 Jul 2014 13:08:28 GMT https://community.sony.rs/t5/z-series/sony-xperia-z2-maximum-supported-write-read-speed-for-microsd/m-p/3280931#M31519 dainiska 2014-07-23T13:08:28Z https://community.sony.rs/t5/z-series/sony-xperia-z2-maximum-supported-write-read-speed-for-microsd/m-p/3280932#M31520 If you use 4K recording like features, you might need to get a high speed SD!(go for the Maximum speed you can)<BR /><BR />So I think Extreme plus would be better in this case, but if your phone is everything for you (just like me) use the maximum capacity (Which has a better speed as well, otherwise useless) I use a class 10 128 GB!<BR /><BR />As far a I know, I think even 30 MBP will be enough for a 4K video! Wed, 23 Jul 2014 17:09:20 GMT https://community.sony.rs/t5/z-series/sony-xperia-z2-maximum-supported-write-read-speed-for-microsd/m-p/3280932#M31520 SanRavRC 2014-07-23T17:09:20Z https://community.sony.rs/t5/z-series/sony-xperia-z2-maximum-supported-write-read-speed-for-microsd/m-p/3280933#M31521 Yes yes!<BR /><BR />30 MBPS is more than enough for recording 4K videos!!<BR />My one has a speed of 10 (minimum), but still I record 4K without any issu! Wed, 23 Jul 2014 17:12:38 GMT https://community.sony.rs/t5/z-series/sony-xperia-z2-maximum-supported-write-read-speed-for-microsd/m-p/3280933#M31521 SanRavRC 2014-07-23T17:12:38Z https://community.sony.rs/t5/z-series/sony-xperia-z2-maximum-supported-write-read-speed-for-microsd/m-p/3280934#M31522 *issue Wed, 23 Jul 2014 17:12:49 GMT https://community.sony.rs/t5/z-series/sony-xperia-z2-maximum-supported-write-read-speed-for-microsd/m-p/3280934#M31522 SanRavRC 2014-07-23T17:12:49Z https://community.sony.rs/t5/z-series/sony-xperia-z2-maximum-supported-write-read-speed-for-microsd/m-p/3280935#M31523 4K requires about 7MB/s write speed, so do not worry, you will be good. Wed, 23 Jul 2014 17:52:31 GMT https://community.sony.rs/t5/z-series/sony-xperia-z2-maximum-supported-write-read-speed-for-microsd/m-p/3280935#M31523 azzido 2014-07-23T17:52:31Z https://community.sony.rs/t5/z-series/sony-xperia-z2-maximum-supported-write-read-speed-for-microsd/m-p/3280936#M31524 <P>Indeed,consider at least class 10 microSDHC(SDXC &gt; 32 GB) if you want to enjoy 4K.4K bitrate is somewhere around 54 Mb/s~7 MB/s as azzido said.</P> Wed, 23 Jul 2014 21:04:17 GMT https://community.sony.rs/t5/z-series/sony-xperia-z2-maximum-supported-write-read-speed-for-microsd/m-p/3280936#M31524 _alexdon_ 2014-07-23T21:04:17Z https://community.sony.rs/t5/z-series/sony-xperia-z2-maximum-supported-write-read-speed-for-microsd/m-p/3280937#M31525 <P>Check out the forums re SD cards being "fried" by the phone (it happened to my 64gb San Disc) before you shell out your hard earned for an expensive one.</P> Thu, 31 Jul 2014 11:05:14 GMT https://community.sony.rs/t5/z-series/sony-xperia-z2-maximum-supported-write-read-speed-for-microsd/m-p/3280937#M31525 7hens63 2014-07-31T11:05:14Z