All dash cams must be able to reliably record data to a storage device for long periods of time without interruption. For this reason, they require “high-endurance” (or high-performance) micro SD cards, as to avoid encountering errors during their often-long, frequent sessions of photo / video recording. Errors encountered from using a “low-performance” SD card with a dash cam may manifest by causing the camera to “freeze” or have unwanted lapses in its recordings, among other potential issues. When you pick up a Rexing Dash Cam, you are given the freedom to choose whichever class 10 micro SD card you prefer to use with your camera. However, there are several important considerations when it comes to finding a card that meets your needs. One of the most important considerations in choosing a card with long-term reliability is that the card has a high number of effective/reliable recording hours, which refers to the amount of hours it can record data throughout its lifespan before experiencing problems. For some cards, that number can be as low as a few hundred hours, while other, more reliable cards will boast several thousands of effective recording hours. With so many options out there, it’s important to know which cards are going to stay reliable throughout thousands of hours of recording. For this reason, we conduct research so that we may recommend cards to use with our cameras which are intended to provide our users with the best possible value and experience.

Up until recently, we have recommended the Lexar High-Performance 633x cards to our customers, as they are built specifically for high-endurance use. Lexar did a great job with their high-performance cards, as we have found them to work very well in long-term testing of our dash cams. Unfortunately, due to a decision made by their parent company, Lexar has recently announced that they will be discontinuing the production of their memory card products, which includes the high-performance 633x series. Therefore, we wanted to update our recommendations so that dash cam users wouldn’t be blindsided when the 633x is no longer available to purchase. Thankfully, we’ve had plenty of time to gather memory card recommendations which we feel stand out as top choices for use with our dash cams.

Before getting into our new recommendations, we would like to address a situation that our customers are sometimes subjected to in which they choose a micro SD card which is not optimized to be used in dash cams and is especially prone to problems as a result. In particular, there is a popular memory card known as the SanDisk Ultra which has been found to be unfit for dash cam use, but many dash cam users haven’t been made aware of this, as the class 10 micro SD card appears to meet dash cam memory card requirements, and will not typically raise errors immediately when inserted into a dash cam for recording. Despite this, SanDisk Ultra cards are notorious for their unreliability when used with dash cams. In fact, SanDisk has noted in the product warranty for the Ultra that using the card in a dash cam device will void your warranty with SanDisk. The bottom line is that we do NOT recommend SanDisk Ultra cards to be used with any of our products, as they are intended for low-performance applications.

Here’s where it gets tricky, however. Amazon customers see this on the product page for the Rexing V1:

Many customers have bought a SanDisk Ultra to use with their Rexing Dash Cam since it’s a top seller in the category of micro SD cards, earning some of our dash cams this “frequently bought together” pairing you see in the image. Unfortunately, this is not something we can directly control, as Amazon has paired these two products based on customer behavior, and we have no option to hide this section on our product pages. It’s disappointing for us because it makes it seem like we recommend this card for use in our cameras when we do not. We want to make it clear that, although it does not currently void your warranty with our product, using SanDisk Ultra cards in our cameras will put both the card and camera at risk of malfunction.
We hope that our recommendations can be a helpful resource for those looking to make an informed purchase, and we advise all our customers to please consider our latest recommendations when choosing a card to use with their dash cam. Speaking of our latest recommendations, I think it’s time we discussed them. In updating our card recommendations, we have decided to focus on cards from two different brands: SanDisk and Transcend. That’s right, SanDisk has a card which we DO recommend, and it’s entirely different than their SanDisk Ultra cards.
If you’re looking for a reliable card, but don’t want to spend too much, we recommend SanDisk High Endurance Video Monitoring cards, as they offer many benefits to dash cam users at an affordable price. One benefit of the SanDisk High Endurance cards is that using them for dash cam recordings does NOT void the card’s product warranty, which is a unique benefit to this line of SanDisk cards. SanDisk has created this card specifically for long-term, high-endurance applications, and so their 64GB High Endurance card is expected to provide up to 10,000 hours of reliable recording of 1080p HD videos. This means that a V1 user who drives with their dash cam recording for an average of 14 hours every week could expect the card to be reliable for 13+ years, making it a great choice for many drivers.
Now, if you don’t mind spending more for increased reliability, we recommend the Transcend Information High Endurance cards. This card by Transcend is said to be “specially developed for high endurance applications,” and is regarded as the top of its class in durability and reliability for use by dash cams and surveillance systems. The 64GB card intends to provide up to 12,000 hours of Full HD 1080p recording, which is 20% more reliable recording hours than our recommended SanDisk card. While the difference between 10,000 and 12,000 hours may not seem significant for drivers who don’t plan to use their dash cams more than a few hours every week, the difference in long-term reliability can be very significant for people who plan to keep their cameras recording for several hours a day, such as those who drive long distances for their jobs, as well as those who leave their cameras running 24/7 for personal surveillance purposes. Additionally, Transcend Information High Endurance cards are built to last in not only the long term; they put a focus on avoiding potential issues well-within their 12,000 effective recording hours. Transcend has engineered their High Endurance cards with a system of error handling that helps resolve errors in a highly-efficient manner. For this reason, Transcend High Endurance cards are regarded as the most reliable high-endurance cards in their price range, and not just for their impressive number of reliable recording hours.

So, which of our recommended micro SD cards, and which memory capacity (16GB, 32GB, 64GB, etc.) would be right for you? Well, we leave that decision up to you! We hope that we have helped you understand the differences between our recommended cards, as well as the factors to consider when shopping for a card, so that you can choose the card which best suits your dash cam usage.

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Until next time!

– Rexing