Samsung EVO Plus 64GB
Recommended 64GB card.
We recommend Samsung EVO for incredibly low power consumption during writes and while sleeping.
A 64 GB card paired with WavPack lossless compression (no audio quality loss) will outlast the battery—so you’ll never run out of storage before power. Learn more about WavPack here.
Memory card size is a tradeoff between cost, runtime and capacity. Uncompressed WAV data takes 3.9GB per 24 hours of audio at 24k. WavPack lossless can reduce that to 800-2000MB per 24 hours. Typically this will be at the lower end in real field audio with low configured Gain. This typically results in the battery dying before the card is full.