1. Mealiavi's Avatar
    Hello

    I would like to know for how much time we can record a 4k video with Lumia 950 XL? Can we record a 4k video for 1 hour without overheating?
    And does the phone has capacity for the file? Or do we need to buy a 32 gb memory card ? How much is the size of a 1 hour 4k video file from this phone?

    There are some great full concert videos with RSS sound from Lumia 1020 and 1520 that last 1 hour or more. I am just woundering if we could record 4k video that last 1 hour with this Lumia 950 XL.
    11-23-2015 05:47 PM
  2. Geo Hutchings's Avatar
    Hello

    I would like to know for how much time we can record a 4k video with Lumia 950 XL? Can we record a 4k video for 1 hour without overheating?
    And does the phone has capacity for the file? Or do we need to buy a 32 gb memory card ? How much is the size of a 1 hour 4k video file from this phone?
    There are some great full concert videos with RSS sound from Lumia 1020 and 1520 that last 1 hour or more. I am just woundering if we could record 4k video that last 1 hour with this Lumia 950 XL.
    your going to need a lot of space for 4k video, the phone will do fine, I recored for ages on my Lumia 930, get a 128gb SD card for it :) that is all
    xandros9 likes this.
    11-23-2015 05:54 PM
  3. Mealiavi's Avatar
    Thanks for the info. But I am afraid if the phone can hang on recording 4k for 1 hour or even more. I read somewhere old phones like lumia 1520 and androids only could record 15 to 5 minutes of 4k video.
    11-23-2015 06:24 PM
  4. TexasLabRat's Avatar
    Thanks for the info. But I am afraid if the phone can hang on recording 4k for 1 hour or even more. I read somewhere old phones like lumia 1520 and androids only could record 15 to 5 minutes of 4k video.
    Especially in the case of the XL with the additional cooling...I'm guessing recording duration will probably only be limited by your available storage. Will be interesting to see some real-world tests when people get them in their hands soon.
    xandros9 likes this.
    11-23-2015 06:46 PM
  5. Jonnny4's Avatar
    Also make sure you buy the right memory card I had two different brand UH1 cards and they had problems with 4k. Make sure you buy a UH3. I ended up buying the Lexar 633x 64Gb, the 128Gb at the time was UH1.
    11-24-2015 12:55 AM
  6. Mealiavi's Avatar
    For those who already have Lumia 950 XL, can someone make a test to see for how much time can we record a 4k video?
    11-26-2015 01:50 PM
  7. Mealiavi's Avatar
    So still anyone knows for how long can we record a 4k video with Lumia 950 XL ?

    Anyone recorded a video for 1 hour? I really would like to know if this phone can hang on recording for 1 hour or even more.
    12-08-2015 06:42 PM
  8. A54D's Avatar
    So still anyone knows for how long can we record a 4k video with Lumia 950 XL ?

    Anyone recorded a video for 1 hour? I really would like to know if this phone can hang on recording for 1 hour or even more.
    It depends on the storage. If you have a fast Micro SD card then it should work until that fills.
    12-08-2015 06:47 PM
  9. occamsmonkey's Avatar
    I can't find the spec for the phone, but it's important to note that most digital recorders which are NOT classified as camcorders have a legal limit of 30 minutes if they are sold in the EU. This is due to some stupid tax law that adds a 4-5% duty on camcorders. And last I checked it was still on the books. Certain things don't fall under it, such as timelapse recording. But the major record function fell into it last time I checked. So for continuous recording, this may not be a good solution.


    EDIT: I just confirmed this is still the case for Android. 30 minute (arbitrary) max.
    12-08-2015 07:42 PM
  10. Mealiavi's Avatar
    I have a Nokia Lumia 1020 and it could record more than 1 hour. So I think the 30 minute law maybe don't apply to this.
    12-09-2015 04:04 PM
  11. occamsmonkey's Avatar
    I just tested with the 950 XL. At *exactly* 30 minutes I got a popup that 'your phone is overheating and recording has been shut down.' I was monitoring temperature with an arduino monitor from our device testing lab at work. It never changed after 5 minutes in, when it hit 38.7 Celsius. So it wasn't a heat issue. I'm positive this is the 30 minute shutdown. So no, you will not be able to record longer than 30 minutes on the 950XL.


    EDIT: Confirmed. The duty is still active and is classified under 8525 40 99 of the EU tariff and duty schedule. To NOT be classified, any device must not be able to record continuously for longer than 30 minutes.
    Last edited by occamsmonkey; 12-09-2015 at 07:52 PM.
    A_Pieman and Harrie-S like this.
    12-09-2015 07:26 PM
  12. Mealiavi's Avatar
    oh :( that's horrible
    12-10-2015 11:22 AM
  13. The Meddling Monk's Avatar
    Are you sure it's not another issue causing your recording to stop at 30 minutes? I tried to record 4K on my Lumia 950 XL and was able to go past the 30 minute mark without any issues. It "was" notciably "warmer" than normal function after that recording time frame, but not hot or anything. Oh, and 13GB size for 36 minutes recorded so around average of 6MB/s (~48mb/s) needed for 4K recording on the XL for anyone interested on the video stats.

    I would imagine that the 4K recording should only have a storage limitation limit on it, or whatever the filesystem limitation is on Windows Mobile 10.
    12-10-2015 02:29 PM
  14. occamsmonkey's Avatar
    Are you sure it's not another issue causing your recording to stop at 30 minutes? I tried to record 4K on my Lumia 950 XL and was able to go past the 30 minute mark without any issues. It "was" notciably "warmer" than normal function after that recording time frame, but not hot or anything. Oh, and 13GB size for 36 minutes recorded so around average of 6MB/s (~48mb/s) needed for 4K recording on the XL for anyone interested on the video stats.

    I would imagine that the 4K recording should only have a storage limitation limit on it, or whatever the filesystem limitation is on Windows Mobile 10.
    I'm not sure. This is just the experiment I did. And I do know for an absolute fact that it's why DSLRs can't do more than 30 minutes. MS may be in violation (Google has it hard coded into their default camera app) but because of market share they aren't being hit. Or they may just eat the duty on EU units. Again, not 100% sure, but pretty confident. However your data suggests different. I know my phone stopped at exactly 30 minutes and the heat hadn't changed at all in 25 minutes. That's not to say there's not a 'sustained temp over time' trigger.
    12-10-2015 02:38 PM
  15. The Meddling Monk's Avatar
    I'm going to leave the XL recording flat on the back (front that is) and leave it recording 4K, will see if it'll stop at 1 Hour or if it's just as long as it can go. Back in a few hours.
    occamsmonkey likes this.
    12-10-2015 02:45 PM
  16. The Meddling Monk's Avatar
    OK, the XL stopped recording at around the 1 hour mark, at 1 hour 1 minute 53 seconds odd on my one on it's own, as I was not observing it, I can't make any comments on what was the cause at this time. Phone was "warm" (noticably warm, but not overly so). File was at ~22GB in size. Will go again to see if it'll stop at at this recording time frame again and monitor it closer to this recording time. Back later with more info.

    :: edit ::

    Forgot to add, 1 hour 4K recording took around 48% from a full charge from battery. So don't expect more than 2 hours worth from 1 full charge via the battery that's shipped with the XL.
    Last edited by The Meddling Monk; 12-10-2015 at 04:01 PM. Reason: Forgot to add battery consumption
    occamsmonkey likes this.
    12-10-2015 03:59 PM
  17. The Meddling Monk's Avatar
    So, I have tried to record again twice, the first time was interrupted at 33 minutes when a call came in and the phone stopped recording. The second time the phone shot a message up at 34 minutes 54 seconds that the system was overheating and was saving the video recording and leaving the phone a chance to cool down. So there is a "overheat" protection going on regarding the camera, but if you can keep the phone cool I don't see why you won't be able to keep recording. So the next test I'll do is to have a fan or something else to help with the cooling/heat dissipation and see if the phone can record for longer than 1 hour, currently, from what I have observed, I would imagine you can, only you need to keep the device as cool as possible.
    12-10-2015 06:56 PM
  18. The Meddling Monk's Avatar
    So I have exceeded the previous 1 hour recording (1 hour 1 minute 53 seconds), and the XL is still recording over the 1 hour mark (as of this posting, 1 hour 15+ minutes). So it would appear that the XL suffers from overheating protection from 4K camera recording, but in actuallity can keep going for as long as you have storage and have power reaching the device WITH the device not overheating. (Current test setup has 3 bottles of water acting as radiators for the XL)

    I won't be able to reach the file limit of Windows 10 Mobile unless I attempt the 4K recording whilst connected to the mains, but I'd assume that it'll be the same as Windows 10, which should be around 256 TB from the 2012 Server edition of NTFS. Which is way more than what is held on the Lumia 950 XL even with the 2TB theoretical maximum SD Card. So I'll just leave the phone to finish recording when the power runs low and report back on what it defaults to doing. But I'd say there's no limit "in theory" to recording in 4K from what I've seen tonight.

    As for the OP, the 1 Hour video at 4K on my XL appears to be around 22-23GB in size. So if you get the current 200GB card, you can in theory fit in 8 odd hours of 4K recording, continuous recording (possibly) even. But you'll need a few batteries to go through (or a charging point), along with something to keep the XL cool. From what occamsmonkey and I have seen and tested, it appears that the XL will go fine for around 30 odd minutes before it feels it needs to stop the recording to prevent overheating of the phone.
    12-10-2015 08:36 PM
  19. Jason Siva's Avatar
    Only 30 minutes, that's a bummer! Was hoping to use the 4K camera at a friends wedding!
    12-11-2015 11:07 AM
  20. mathewhayward's Avatar
    Only 30 minutes, that's a bummer! Was hoping to use the 4K camera at a friends wedding!
    Well you're not going to be recording constantly for 30 minutes, are you? Problem solved
    12-11-2015 11:25 AM
  21. Jason Siva's Avatar
    It's an Asian wedding, our ceremonies are quite long and it would be nice to capture the whole thing for them
    12-11-2015 11:30 AM
  22. A_Pieman's Avatar
    Always best to have a few cameras anyway for important things like weddings. Perhaps you could arrange for a couple of people to video and you could edit a film of the whole ceremony with a few different angles.

    I'd have a few backup batteries and some extra storage cards.
    12-11-2015 11:45 AM
  23. The Meddling Monk's Avatar
    Assuming you are looking to record any event, no solo device is ever going to be enough (not enough good angles on the event, different reactions from people, etc). My recommendation is also to get someone else with another device to record the event as well so you can splice together later on.

    As for the Lumia 950 XL, it can record for more than 30 minutes, I've already tested and said it can. You just can't be in a hot environment or lacking any type of extra cooling for the Lumia if you want to shoot continuously for more than 30 minutes consistently. Else the thermal protection will kick in and shut down the 4K recording to let the device cool down a bit.

    If you really want to try and solo capture the wedding event, you'll need a grip or casing that can help dissipate heat as quickly as possible, currently I know of no such "extra" (accessory) that can be obtained at this time (other option is if there's lots of Air Con going on, that could in theory do the job in keeping the XL cool enough as well, but that'll depend on event location). You'll also need at least 128GB SD card storage, as 1 hour 4K alone is 23GB in size. And since you'll only have 2 hours of 4K per 100% charge on the battery, you'll need at least 3 battery's to go with you (1 in the device and 2 others to swap in, although I'd recommend 4 personally, 1 in device and 3 spare). And that's not exactly a cheap setup to do compared to getting others to help instead as suggested.
    12-11-2015 01:35 PM
  24. Jimmy Dean2's Avatar
    Android has a built in hard limit of 4GB on video recording. No it is not related to FAT32 or archaic EU laws. It's a limit of android OS only. It happens to be about 30 minutes of 1080p 60fps uncompressed video that gives rise to these myths about fat32 or EU tariff nonsense. Turn down your quality to like 480p and even an android will record for hours.
    02-02-2016 07:39 AM

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