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Updated by Brent Archer- Contact Author

How Big Is A 4K Video File & How to Fast Resize 4K Videos with Hardware Acceleration On

Get clear about the size of a 4K video before you record 4K video at 30fps/60fps with your iPhone 11/Pro/Max, iPhone XS (Max), Samsung Galaxy S10, GoPro Hero 7. Best solution to fast resize/compress 4K video file to smaller video with best quality.

It surely is possible that you get here just out of curiosity and it doesn't matter to you how big a 4K video file would be. But I guess people who really care about 4K file size should mostly be those who intend to record, download or play 4K videos however using a device with limited storage.

It is true that we are almost in the 4K Age. You can download 4K movies online, watch 4K streams on Netflix or record 4K videos with mobile phones, like iPhone 11/Pro/Max and Samsung Galaxy S10. Even over-the-air TV broadcasting is already on its way. However, 4K file size remains a problem, despite having been cut in half with the use of advanced HEVC codec. Some of us may still have to make do with 1080p for some time and that's why a hardware accelerated 4K video compressor is needed to help fast resizing 4K videos, downscale 4K to 1080p, etc.

The size of a 4K video recorded in HEVC is much smaller than it is recorded in H.264, simply because HEVC codec saves nearly half by higher compression efficiency when compare to H.264, within the same graphic quality. FYI, 4K video recording at 24fps and 60fps is only available on iPhone X/8 (Plus), with file size 135MB and 400MB for 60 seconds respectively, that means we could benefit a whole lot from the compression.

How to Change 4K Video File Size for Free? Try WinX HD Video Converter Deluxe!

• Downscale 4K to 1080p/720p/2K or upconvert 1080p to 4K UHD, 720p to 1080p etc.
• Resize 4K video by changing bit rate, scaling resolution, tewaking frame rate, trimming the video length or cropping frame size.
• Also best video resizer that can resize all kinds of videos, be it MP4, AVI, H.265/HEVC, MKV, etc.
• QSV, CUDA/NVENC hardware acceleration renders fastest conversion speed.

How Much Storage Space Does 4K Video Take up on your iPhone/Samsung/GoPro?

4K Video File Size Recorded by iPhone/Samsung/GoPro


iPhone 11/Pro/Max


iPhone XS (Max)


iPhone 7 (Plus)


Samsung Galaxy S10


GoPro HERO 7

Capacity: 64GB, 256GB, 512GB

Capacity: 64GB, 256GB, 512GB

Capacity: 32GB, 128GB

Capacity: 128GB, 512GB

SD card: 16/32GB, 64/128GB

Resolution:
2436x1125, 2688x1242

Resolution:
2436x1125, 2688x1242

Resolution:
1334x750, 1920x1080

Resolution: 3040x1440

Resolution: /

4K Recording Mode:
4K at 24fps
4K at 30fps
4K at 60fps

4K Recording Mode:
4K at 24fps
4K at 30fps
4K at 60fps

4K Recording Mode:
4K at 24fps
4K at 30fps
4K at 60fps

4K Recording Mode:
4K at 24fps
4K at 30fps
4K at 60fps

4K Recording Mode:
4K at 24fps
4K at 30fps
4K at 60fps

4K file size:
60s 4K HEVC at 30fps = 170MB
60s 4K XDR + HEVC at 60fps = 400MB

4K file size:
60s 4K H.264 @30fps = 350MB
60s 4K HEVC at 30fps = 170MB

4K file size:
60s 4K H.264 at 30fps = 350MB
60s 4K HEVC at 30fps = 170MB

4K file size:
60s 4K H.264 at 30fps = 360MB
60s 4K HDR10+ H.265 = 405MB

4K file size:
60s 4K at 30fps with Protune = 585MB

Here is what we can get from the above table:

1. iPhone 11/Pro/Max allows 4K video recording at 60fps both on front and rear cameras. It means that 4K 60fps will be the choice for an increasing of users, which could also make iPhone 11/Pro/Max easily out of storage. An hour and 40 minutes of 4K XDR 60fps footage could almost use up all the memory of a 64GB model iPhone.

2. Samsung Galaxy S10 supports recording 4K in HDR10 mode of HEVC codec, which brings crisper and sharper image of 4K UHD video, but also takes more storage space. Moreover, there is a 10-minute limit for 4K video recording with Samsung Galaxy S10, probably in consideration of the big file size of 4K. So technically, you can download a 120 minutes feature length 4K movie on Samsung Galaxy S10, but it won't let you record 4K at 30fps longer than 10 minutes. Besides, a 4K video clip recorded by professional cameras is mostly bigger than that by mobile phones.

3. GoPro HERO 7 allows users to shoot 4K footages maximumly at 78Mbps with Protune on, producing 585MB 4K video per minute.

4. Based on the configurations we listed above, it is easy to calculate how much space a 4K movie video will take up on different models. The test result tells that a 32GB iPhone 7 running iOS 10 can store only one 4K H.264 video at 30fps. Next we will show you how many feature length 4K movie videos at 30fps can be downloaded to your iOS, Android and camera devices:

Capacity

iPhone - HEVC

iPhone - H.264

Samsung Galaxy S10

GoPro HERO 7

32GB Version

3h 8 minutes 4K film

1h 30 minutes 4K film

-

55 minutes 4K film

64GB Version

6 16 minutes 4K film

3h 2 minutes 4K film

-

1h 48 minutes 4K film

128GB Version

12 32 minutes 4K film

6h 9 minutes 4K film

5h 16 minutes 4K film

3h 38 minutes 4K film

256GB Version

25 5 minutes 4K film

12h 11 minutes 4K film

-

4h 17 minutes 4K film

How to Deal With Big 4K File Size?

4K is four times as many pixels in total as FHD 1080p, which leads to file size increases accordingly. If you still stick with iPhone 7 or maybe iPhone 6/5S with only 16GB/32GB storage, a 45-90 minutes 4K video would eat up all the space, leaving your mobile freezing or crashing. Of course you can simply delete those 4K files to revive your phone. Also it is a good idea to transfer 4K videos to PC, cloud or external hard drive for saving and playing on PC/TV. Better to use a 4K file transfer software that can cut down the long time taking for transferring large-size files. But if playing 4K on iPhone/Android mobile on the go is what you want, compressing a 4K video file would be the best way.

Get to know what affects 4K video size first: Generally, video file size depends on the length of video, bitrate, FPS (frames per second) and codec. Changing any one of them would help resize your video files in 4K. Besides, a top 4K video compressor is a necessity to facilitate the whole process, saving you the time and trouble to calculate settings.

WinX HD Video Converter Deluxe - Superior 4K Video Resizer with Hardware Acceleration

Need to mention that handling 4K video compressing/resizing, be it 4K HEVC, 4K H.264, 4K MKV, 4K MP4 video, etc. may be very slow without Hardware Acceleration. Fortunately, WinX HD Video Converter Deluxe which fully supports Intel QSV, NVIDIA CUDA/NVENC GPU acceleration tech would be a greate helper in resizing large 4K videos. It can fully utilize computer GPU hardware acceleration to speed up the large 4K video decoding, processing, encoding, thus, let the CPU of your computer free from huge burden. And most importantly, it enables you to compress 4K video by up to 90% without losing quality.

▶ Convert iPhone, Samsung, Gopro, drone 4K videos to 2K, 1080P, 720P and more with best quality.
▶ Convert 4K H.264 to 4K HEVC/H.265 or vise versa, re-encode 4K MKV to 4K MP4 at lightning speed.
▶ Convert 4K video to MPEG4, AVI, WMV, MOV, FLV, 3GP etc. for playing on different devices/video players.
▶ Resize 4K video at No.1 fast video processing speed with smaller output file size and high quality.

Compress or Resize Big 4K Video Files in Three Ways

Way 1. Guide | How to Resize 4K by converting 4K H.264 to 4K HEVC

As we said before, HEVC codec, being the successor to H.264, utilizes a much more efficient compression algorithm and is the main codec used to compress 4K/8K UHD videos. So it is easy to resize a big 4K H.264 video file. Just convert 4K H.264 to 4K H.265 (HEVC).

Step 1: Download WinX HD Video Converter Deluxe, launch the WinX 4K video resizer software after the installation, and load your 4K H.264 file by clicking "+Video".

Step 2: On the pop up "Output Profile" window -> General Profile -> HEVC Video (MP4 file format with hevc/h.265 + aac, resolution: 4096x2160).

Step 3: Since decoding, processing, encoding 4K, HEVC/H.265 videos may be slow, this 4K video converter adds unique hardware acceleration support for 4K, HEVC, H.264, or any other large video conversion to deliver an ultrafast speed. Optionally tick Intel or NVIDIA hardware transcoder option to quicken the process.

Step 4: Click OK, browse to choose a destination folder and click RUN to fast convert 4K H.264 to 4K HEVC with hardware acceleration on.

Resize 4K by Converting 4K H264 to 4K HEVC

Way 2. Guide | How to Resize 4K by converting 4K 60fps to 4K 30fps

Is there really a big difference on file size between 4K 60fps and 4K 30 fps? The answer is yes. Here is how we do the test. Go to youtube.com, choose a 4K video from the results, and play the video. Click the gear icon at the bottom right corner, choose Quality, and then you can switch to 2160p 60fps. Seemingly, there is only 60fps option. But if you copy and paste the video url to the YouTube download function part of WinX 4K MP4 resizer, you will see there are two outputs options under the same resolution, format and codec, but in different file size. Actually, one of them is 4K 60fps while the other is 4K 30fps. So it is true that you can change 4K video file size by adjusting frame rate.

Step 1: Open the WinX 4K video resizer, click "+Video" to get 4K 60fps loaded and then "OK" to get back to the main interface.

Step 2: This time click the gear icon next to the trash can button and click into the parameter center.

Step 3: Move to "Video Options" -> "Frame Rate" -> select 30 from the dropdown list and RUN to fast resize 4K video file with hardware acceleration.

Note: Changing frame rate to resize 4K video is not appropriate for all, for example extreme sports videos. Besides, we only recommend converting 4K 60fps to 4K 30fps instead of 24fps or 29.97, which may lead to distorted output image.

Also See: How to compress 4K videos at 60fps for uploading to YouTube >>

Resize 4K by Changing Frame Rate

Way 3. Guide | How to Compress 4K video by converting 4K to 1080p

"I used to record everything in 4k because it looks sharper and has more detail but it was so much work on my video editing program and took up so much space, that I switch to recording on a basic 1080p setting." Downscaling 4K to 2K or 1080p is a good way to cut down 4K file size, if it's ok with you.

Step 1: Launch the software, load your 4K video file through button "+Video".

Step 2: Get into the same video audio parameter center by clicking the gear icon.

Step 3: Choose 1920x1080 from the dropdown list of "Resolution" under "Video Options" and press button RUN to compress 4K video to smaller at fastest speed with hardware acceleration.

See also: Is it possible to convert 4K to 1080p via Handbrake without quality loss? Check here...

Resize 4K by Lowering Video Resolution

Video Tutorial: 3 Ways to Compress 4K Video Files Size without Losing Quality

One-click to Resize 4K Video for Uploading, Playing or Any Purposes!

If you can't play 4K videos on PC/mac or still have question on 4K video file size compressing? Please feel free to Email Us >>

ABOUT THE AUTHOR

Brent Archer

Brent Archer is an experienced editor who loves all things related to social. He has spent more than a decade writing instructional contents related to social media, streaming services and video related topics all over the internet for Digiarty. Outside the social, he is addicted to Google I/O, Apple WWDC and other tech news to keep him informed.

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