Robert Mueller 
There are a lot of factors that affect how much video you can record on your iPhone, including the size of your device’s storage, the quality of the video recording, and more. But in general, you can expect to be able to record several hours of video on most iPhones.
How Long Will IPhone Record Video
The iPhone 6s Plus can record up to 4K video at 30fps. That’s a lot of data being written to the phone’s storage every minute, so it won’t be able to record for as long as lower-resolution videos.
According to Apple, the iPhone 6s Plus will record up to 1 hour and 3 minutes of 4K video at 30fps, or 2 hours and 9 minutes of 1080p video at 30fps. The iPhone 6s will be able to record for slightly less time, due to its smaller storage capacity.
It’s important to note that these are just estimates from Apple. Your actual recording time will depend on a number of factors, including the quality of the video you’re recording, the subject matter, how much movement is in the frame, and more.
What’s the Maximum Video Resolution on iPhone
The maximum video resolution on the iPhone 6s and 6s Plus is 4K, or 3840×2160 pixels. That’s four times the number of pixels as 1080p HD video, so it’s a significant jump in quality.
Of course, not everyone needs or wants to record video in 4K. If you don’t have a 4K TV or monitor, there’s no point in recording at that resolution. And 4K video takes up a lot of storage space, so you won’t be able to record as much of it as you could lower-resolution video.
What Are the Different Video Recording Modes on iPhone
There are three different video recording modes on the iPhone 6s and 6s Plus: 1080p HD at 30fps, 1080p HD at 60fps, and 4K at 30fps.
The 1080p HD at 30fps mode is the standard video recording mode for most people. It offers good quality video without taking up too much storage space.
The 1080p HD at 60fps mode is designed for recording video of fast-moving subjects, such as sports or action scenes. The higher frame rate makes the video look smoother and more realistic.
The 4K at 30fps mode is the highest quality video recording mode on the iPhone 6s and 6s Plus. It offers four times the resolution of 1080p HD video, but it also takes up a lot more storage space.
What’s the Best Video Recording Mode for iPhone
The best video recording mode for your iPhone depends on what you’re going to be using the video for. If you just want to record some casual videos of your life, the 1080p HD at 30fps mode will be fine.
If you’re going to be recording video of fast-moving subjects, such as sports or action scenes, the 1080p HD at 60fps mode will give you better results. And if you want to record video in the highest possible quality, regardless of storage space, the 4K at 30fps mode is the way to go.
Can I Record an 8 Hour Video on iPhone
No, you cannot record an 8 hour video on iPhone. The longest recording time for any video mode on the iPhone 6s and 6s Plus is 2 hours and 9 minutes (for 1080p HD at 30fps). So if you try to record an 8 hour video, your phone will stop recording after 2 hours and 9 minutes.
But there are a few ways you can work around this. One is to use a video editing app to stitch together multiple shorter videos into one long video. Another is to connect an external storage device, such as a USB flash drive, to your iPhone and record the video to that.
Maynard Coffman 
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