The magnetic sensitivity for the LSM9DS1 is 0.14 mguass/LSB on its most sensitive range. The LIS2MDL is 1.5 mguass/LSB. Is the LSM9DS1 really 10X more sensitive? If so, it would seem the best choice for applications like a driveway sensor since it could detect smaller disturbances as vehicles passed by. On the other hand, it is an older design, so should it be used in new designs? Is there an alternate part with the same or similar sensitivity?