Exhibit 99.1 908 Devices Reports Fourth Quarter and Full Year 2023 Financial Results and Provides 2024 Revenue Outlook Fourth quarter 2023 revenue increased 23% compared to prior year, driven by handheld revenue increasing 57% BOSTON – March 5, 2024 – 908 Devices Inc. (Nasdaq: MASS), a pioneer of purpose-built handheld and desktop devices for chemical and biochemical analysis, today reported financial results for the quarter and full year ended December 31, 2023. "We made solid progress in 2023 towards our ...