Fig. 1: The growing power of low-cost smartphones.
From: Taking connected mobile-health diagnostics of infectious diseases to the field
Smartphone adoption (the percentage of global (red) or sub-Saharan Africa (blue) mobile phone connections that come from a smartphone), processor speed (CPU clock frequency) and camera resolution (primary camera megapixels) of the flagship models of popular smartphone manufacturers. The stated processor speed takes into account multiple processor cores at a parallelization of 50%. ‘High-end’ models retail for €610–€1,000, whereas ‘low-cost’ models retail for €60–€160. In order to plot this figure we obtained smartphone adoption data from https://www.gsma.com/mobileeconomy and all smartphone specifications from http://gsmarena.com/. For details on how we generated the graph see Supplementary Information section A. Raw and intermediate data can be found in Supplementary Tables 1 and 2 and at https://doi.org/10.5281/zenodo.1320937.
