Examples of different adherence monitoring technologies. Examples of different adherence monitoring technologies. (A) 99DOTS, a feature phone-based adherence technology (with permission from Everwell Health Solutions);87 (B) SureAdherence, a video DOT strategy (with permission from SureAdherence Mobile Technologies);53 (C) evriMED, a digital pillbox (with permission from the Wisepill Technologies);88 (D) an ingestible sensor–based adherence monitoring approach (Source: Belknap et al.37). DOT, directly observed therapy; LED, light-emitting diode; SIM, subscriber identification module; TB, tuberculosis. Ramnath Subbaraman et al. BMJ Glob Health 2018;3:e001018 © Author(s) (or their employer(s)) 2018. Re-use permitted under CC BY. Published by BMJ.