Is the Radiomaster Pocket 1W Module Compatible with ELRS?

The RadioMaster Pocket has a nano-size external module bay that is explicitly listed as compatible with RadioMaster nano modules (and TBS Nano Crossfire/Tracer). That means the Ranger Nano 2.4 GHz ELRS 1W module will physically and electrically fit and work.

You do not need a different internal receiver protocol for this to work. If you buy the Pocket in the ELRS version, its internal 2.4 GHz ELRS TX can handle ELRS binds to your quads. The Ranger Nano is simply an external ELRS TX you can use when you want higher output power or different antennas. In EdgeTX, you’ll run either internal ELRS or the external module - not both at the same time - by turning off the internal RF and selecting the external bay with the CRSF protocol.

Note that the Nano supports up to 1W and may need an external XT30 battery supply.