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 |