Firstly, this is completely incorrect. If you'd like to message us directly regarding the particular store and Halfords colleague that you spoke to, we can report this directly to Halfords head office.
I'll make it clear- a new Nextbase product has a one year warranty, regardless of what brand or type of SD card that you use.
Most SD card manufacture's void THEIR SD card warranties if used in a write intensive environment (E.g. CCTV, Dash Cams), and this can be found on their websites. This is the SD manufacture warranty, not Nextbase.
When purchasing a micro SD card for your camera, you need to ensure:
1. The card is the correct size for your device. I'd recommend a Dash Cam compatible 8GB -128GB U3 Micro SD card for most of our devices (not 112 or 122).
2. The card needs to be specifically designed for Dash Cam or CCTV usage.
3. The card needs to be designed to allow for continuous overwriting. The micro SD card needs to have a minimum continuous write speed of 48MB/s, as per the manuals.
4. We'd highly recommend for the SD card to come with a one year warranty. If the manufacturer voids the card's warranty if used in a continuously overwriting environment, then we'd recommend not using this card in a Dash Camera.
5. Check carefully the small print for your chosen card. A lot of cards appear to have a high write speed, but in the disclosures, this is shown to be considerably lower. I'll use the SanDisk Extreme, SanDisk Extreme Pro and SanDisk High Endurance as an example here. The SanDisk Extreme is advertised as a 90MB/s write speed, the Extreme Pro at 90MB/s and the High Endurance at 40MB/s. However they are only V30 cards, and this statement is made in the disclosures on their website:
'UHS Speed Class 3 (U3) designates a performance option designed to support real-time video recording with UHS-enabled host devices. Video Speed Class 30 (V30), sustained video capture rate of 30MB/s, designates a performance option designed to support real-time video recording with UHS-enabled host devices. See www.sdcard.org/consumers/speed. '
Get extreme speeds for fast transfer, app performance, and 4K UHD.2 Ideal for your Android™ smartphone, action cameras or drones, this high-performance microSD card does 4K UHD video recording, Full HD video, and high-resolution photos. The super-fast SanDisk Extreme® microSDXC™ memory card...
shop.westerndigital.com
Get extreme speeds for fast transfer, app performance, and 4K UHD.2 Ideal for your Android™ smartphone, action cameras or drones, this high-performance microSD card does 4K UHD video recording, Full HD video, and high-resolution photos. The super-fast SanDisk Extreme® PRO microSDXC™ memory card...
shop.westerndigital.com
Designed to record for up to 20,000 hours1, the SanDisk® High Endurance microSD™ card gives you the peace of mind that your dash cam, home monitoring or security system will capture crucial footage when it happens, recording and re-recording worry-free. It’s built tough too—ready to record in...
shop.westerndigital.com
Due to the 30MB/s continuous write speed, these cards are not suitable for use in a Dash Cam. Due to the significant use of these cards in Dash Cameras, we are aware of a large amount of SD card failures. We'd highly recommend ensuring your chosen card has a suitable continuous write speed. E.g. minimum 48MB/s. If a Dash Cam user chooses to use a card that is not suitable for their device, then they risk a variety of faults. This is up to the user to ensure they use a correct compatible SD card. If a user does not regularly format their card (2-3 weeks as per the manual), then they risk in reducing the life-expectancy of their SD card.
Finally
'Halfords inform me they embed a code into their sd cards so other brands break but you seem to have it working.'.
We do not 'embed code'. We have cards that are above 48MB/s, it's as simple as that. If you use a suitable card too, then you are significantly less likely to have SD card related issues.