Personal care system with monitor device and related methods

A personal care system comprising:

• a personal care appliance,
• a primary accessory device being a handheld device,
• a secondary accessory device being a handheld device, and
• a monitor device, the monitor device comprising:
• a processor;
• a memory connected to the processor, the memory including instructions that are executable by the processor;
• a first interface connected to the processor, the first interface configured for connecting the monitor device to the personal care appliance;
• and
• a second interface comprising a transceiver module connected to the processor and configured for connecting the monitor device to the primary accessory device and the secondary accessory device,
• wherein the instructions, when executed by the at least one processor, cause the monitor device to perform a set of operations, the set of operations including:
• establishing a primary connection between the monitor device and the primary accessory device;
• transmitting primary monitor data to the primary accessory device via the primary connection;
• determining whether a first primary connection criterion based on a quality of the primary connection is satisfied;
• and
• in accordance with a determination that the first primary connection criterion is not satisfied, transmitting secondary monitor data to the secondary accessory device.