What video resolution do you guys usually set for everyday driving? I watched some videos here and only the 720p gives clear and sharp video quality. 360p is not clear and rather blurry.
Review Xiaomi Mijia Dashcam
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 Apr 2 2017, 08:18 AM
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491 posts Joined: Oct 2012 
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Apr 3 2017, 07:34 AM
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QUOTE(blurjoey @ Apr 2 2017, 11:48 AM) Minimum nowadays is 1080p... 720p was long time ago... Anyway minia dashcam only have 1080p 30fps resolution... I see. But 1080p will take up considerably more storage. Usually a full storage of video will last how many days before they have to be deleted for new videos? Assuming you are on the road for 3 hours average a day. With 1080p video, how many days will it take for the storage to reach full capacity? If it is 9 hours, then by 3 days the old videos will have to be deleted to make way for new videos. |
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Apr 4 2017, 11:32 AM
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QUOTE(blurjoey @ Apr 3 2017, 09:40 AM) To calculate on how long a sd card can store is depends on the sd card size and the bit rate of the video... Right, thanks. So for this Mijia, if the SD card in the Mijia is 32GB, when recording in 1080p the SD card can only fit 4 hours of video? That means the card will have to re-write the videos in every 2 days assuming that the driver is on the road for an average 2 hours a day.To calculate, take the sd card capacity in GB, divide it by the bit rate, and multiply the result by 2. The result is 10% less than the actual recording time as this is a quick formula. Mijia dashcam has an overall bit rate of 16.3 Mb/s. 32gb roughly about 4 hours & 64gb about 9 hours... Most dashcams can only use 32gb but only a handful of newer dashcams can use 64gb or 128gb sd cards... |
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