The ZOE-M8B consumes 25 mW on average in most environments (including urban), and as little as 12 mW during instantaneous tracking. This is a three-fold improvement in power efficiency when compared with other variants from the company. u-blox’s proprietary Super‑E mode of operation automatically adjusts the power consumed by the system components based on the external conditions.
The footprint of a design with a chip and individual external components would be about 50% larger than the PCB footprint of the ZOE-M8B which integrates a GNSS receiver, TCXO, SAW and LNA in a single package measuring only 4.5x4.5x1.0mm.
u-blox - www.u-blox.com