After completing the consent participants will be randomized to one of two study arms. The control arm will consist of 25 pregnant women. Each will be provided with usual care through Healthy Beginnings or NFP but will not receive a smartwatch or the active intervention. Smoking behavior will be measured by self-report and sample testing for the duration of the trial. Self-reported smoking status will be collected weekly. Sample testing will occur weekly and will be identical to the intervention group. Following their completion of this trial they will receive a smartwatch as well. The intervention arm will consist of 25 pregnant women. Each will be enrolled and provided with a smartwatch. The SmokeBeat app will be active. Smoking behavior will be measured by the smartwatch for the duration of the trial. Self-reported smoking status will be collected weekly. Sample testing will occur weekly. All participants assigned to the intervention arm will be allowed to keep the smartwatch for their participation and be provided with a smartphone data plan for the duration of the study.