SanDisk High Endurance 512GB microSDXC vs Transcend 512GB High Endurance microSDXC

Both cards are 512GB UHS-I microSDXC with V30 and Class 10 ratings, so they handle 4K recording and sustained writes similarly. The SanDisk High Endurance is the safer pick for dash cams, home cameras and the original Switch, because SanDisk publishes a 40,000-hour endurance figure and rates the card temperature, water, shock, humidity and magnet proof. The Transcend adds an A1 app performance rating, which helps with app loading on Android phones and tablets. Owners of both brands report reliable long-term use in loop-recording devices; the SanDisk's endurance claim is the clearer, more specific one.

• Choose the SanDisk High Endurance if you record continuously in a dash cam or home security camera, or want a card rated for harsh conditions and the original Nintendo Switch.
• Choose the Transcend if you want A1 app performance for a phone or tablet and the same 512GB, V30 and U3 ratings.