1. A quick and easy applicator tool Use the applicator tool to apply your Dexcom ONE sensor to your arm, abdomen, or upper buttocks (ages 2-6), where it automatically inserts just under your skin.2. Wearable all-in-one sensor The sensor provides automatic glucose readings every 5 minutes without fingersticks* or scanning. It can be worn for up to 10 days, plus a 12-hour grace period. 3. Display device† Sensor features Lasts up to 10 days Small Dexcom sensor2 All-in-one sensor and transmitter 30-minute warmup time 12-hour grace period Water-resistant 2.4 meters for up to 24 hours