SmartFuel: Running

Garmin brought smart fueling to cyclists. We built it for runners. SmartFuel: Running is a data field that delivers adaptive gel reminders during your runs. Unlike every other fueling app, SmartFuel adjusts reminder timing based on your real-time heart rate zone and ambient temperature — so your nutrition keeps up with your effort, not a fixed schedule. **Works on race day.** SmartFuel runs as a data field tile inside Garmin's native run activity. PacePro, auto-lap, and official timing chip recording are completely unaffected. Set it up once the night before, and it works automatically on every run. **How it works** When your heart rate climbs into Zone 4, SmartFuel shortens your fueling interval from 35 to 28 minutes. Running in 28°C heat? It shortens the interval further. Race Day mode? Intervals tighten by 15%. The algorithm is based on Jeukendrup's carbohydrate oxidation research and ISSN sport nutrition guidelines. **The tile earns its screen real estate** Between alerts, the tile shows a live nutrition dashboard with data unavailable anywhere else on your watch face. **Understanding the Dashboard Fields:** - **ZONE / TEMP**: Shows your current Heart Rate Zone (e.g., Z3) and the ambient temperature (e.g., 16C). Your fueling interval dynamically recalculates based on these two values. - **REFUEL (#N)**: A live countdown timer (MM:SS) showing exactly when you need to take your next gel, plus the gel number. - **CARBS**: Total carbohydrates consumed vs. your rolling target (e.g., "75g / 120g"). Updated every time you confirm a gel. - **VARIANCE**: Shown in green (+) or red (-) directly below the carbs line — how far ahead or behind you are against the 60g/hour target. If you skipped an alert, a missed-carb debt (M-Xg) is shown alongside so you know exactly what you need to make up. *(Note: The numbers shown in the store screenshots are simulated test data to demonstrate the layout. Your actual on-screen data will vary dynamically based on your personal heart rate zones, selected fuel type, and real-time running effort.)* **Alert interaction** When it's time to fuel, your watch vibrates (3 short pulses), and the data field tile switches to an orange GEL NOW screen. *IMPORTANT: Press 2x LAP to confirm you took the gel*. If you miss an alert, SmartFuel automatically logs the skipped gel as a carb debt and advances the schedule — no manual reset needed. No menu, no tapping through screens — one button, mid-run. **What's included** - Adaptive fueling reminders based on HR zone + elapsed time + temperature - Live nutrition dashboard: zone, temp, countdown, carbs consumed vs. target + variance - Countdown turns red in the final 2 minutes — visual heads-up to get your gel ready - Missed gel tracking: tile shows carb debt (M-Xg) when you skip an alert - Manual top-up: press LAP any time you're behind on carbs to log a gel you took off-schedule - 3 run modes: Long Training / Race Day / Hot Day - Standard fuel type presets: GU, Maurten 100, Maurten 160, SIS, Tailwind, Clif, Generic - Custom fuel profiles (set your own carbs per unit) - Pace-adaptive activation: SmartFuel re-samples your pace every 15 minutes and keeps your first gel gate accurate even from a crowded race start - Temperature adjustment (auto via Garmin weather or manual) - 3-tier HR zone fallback: Garmin Connect profile → 220−age formula → fixed defaults - Auto-dismiss missed alerts: unacknowledged alerts auto-advance after 6 minutes **Setup (takes 2 minutes)** 1. Install SmartFuel: Running from the Connect IQ Store 2. Open Garmin Connect Mobile → Your Device → Connect IQ → SmartFuel → Settings 3. Choose your run mode and fuel type 4. Add the SmartFuel tile to any run data screen 5. Start running **Science basis** SmartFuel provides general fueling guidance based on published sports nutrition research. Individual needs vary — consult a registered sports dietitian for personalised advice.

- Increase the number of supported devices - Confirm GEL intake by pressing twice the LAP button