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Smartwatch apps that detect smoking gestures are gaining traction in the UK, but vaping detection remains underexplored. This article explains the latest research, the technological readiness of mainstream watches, and the clear opportunity for validated, privacy‑first vape‑specific apps that log puffs and integrate with NHS or harm‑reduction services.

In 2026 the UK landscape shows both quit‑smoking apps and peer‑led vape groups can help smokers switch to vaping — but they do so differently. Apps are scalable and deliver personalised behavioural support (with evidence of improved 6‑month abstinence), while peer groups give practical, social help; high‑quality head‑to‑head trials are still lacking, so the best choice depends on individual needs and dependence.