Table 2.

Suggestions of desirable features or improvements given by healthcare providers

Challenge	Design suggestion
Probe fit	Supplied with multiple sizes of probes for different ages
	A single cable with multiple probes that can be changed (eg, clipped into the cable)
	Softer material for a more comfortable fit
Probe placement	Probe made of transparent material so that sensor placement on the nail can be seen
Cleaning	Alcohol wipes provided for easier cleaning
	A different colour of probe to make it easier to see the dirt, but does not look dirty quickly
Power	Solar-powered charger with rechargeable batteries
	Back-up power bank
	Supplied with a spare battery
Agitated children	Toy feature in the device to distract the child
	Improve the sensitivity of the device to be quicker
	Improve the sensitivity of the device to tolerate movement
Integrated spot-check device	Store results in a memory that can be accessed later
	Static oxygen saturation result display
	‘3-in-1’ device which includes temperature and respiratory rate measurements as well
	Shorter cable length for easier portability