Conquer Every Step.
From Wrist to Summit.
Gradura turns your Garmin into the ultimate vertical training computer. Connects straight to gym ClimbMills & StairMasters over Bluetooth FTMS — displaying real-time VAM, cadence, and landmark challenges, phone-free.
How It Works in the Gym.
Three Simple Steps.
No need to fiddle with phone cradles or manual note taking. Gradura lives on your wrist and runs standalone.
Install from Connect IQ
Download Gradura directly to your Garmin watch using Garmin Connect IQ Store or Garmin Express. Setup takes under 30 seconds with zero account creation required.
Step On & Auto-Connect
Open Gradura on your watch and step onto any Matrix Climbmill, StairMaster, or FTMS gym machine. The app auto-detects the strongest climber via Bluetooth Low Energy without needing your phone.
Climb & Auto-Sync
Monitor your real-time VAM, cadence, and conquered landmarks. Once you stop and save, your workout syncs natively to Garmin Connect with custom climbing graphs and intensity minutes.
Every Metric You Need.
Zero Compromises.
Tired of gym stairmasters that can't sync with Garmin Connect? Gradura bridges the gap with native Bluetooth FTMS and custom FIT developer telemetry.
Direct Gym Machine Wireless Link
No phone needed. Your Garmin watch pairs directly over Bluetooth Low Energy (FTMS) with Matrix, StairMaster, Technogym, and Life Fitness consoles. It reads real-time step cadence, flywheel speed, and resistance levels with zero perceptible lag.
Native FIT Activity File Recording
Custom climbing fields are injected directly into your official .fit activity log.
View interactive ascent graphs, step distributions, and VAM curves right in the Garmin Connect app.
VAM (m/h) Real-Time Pacing
Track your Velocità Ascensionale Media. Dial in lactate-threshold intervals and steady-state hill simulations with surgical precision.
Manual Stepping & Stair Mode
No Bluetooth machine? Step through resistance levels directly on your watch screen or physical buttons. Accurate step height physics calculates real elevation whether you're in a high-rise tower or stadium stairs.
9 Iconic World Landmarks Challenge
Conquer real-world milestones during your workout. From Prague's Petřín Tower (60m) to the Eiffel Tower (300m), Burj Khalifa (828m), and Mount Everest (8,848m). Feel a distinctive triple haptic buzz every time you conquer a summit!
100% On-Device & Private
No accounts to create, no third-party cloud servers, and no tracking. Your workout data stays entirely on your watch and Garmin Connect account.
Experience the Watch App
Directly in Your Browser.
Gradura was built specifically for Garmin AMOLED and MIP round screens. Click the buttons or bezel controls below to cycle through the 3 live workout telemetry pages.
Machine Mode & Controls
Active Screen Details
Core Telemetry Engine
Designed with ultra-high contrast for intense workout visibility. Large hero elevation gain counter updates at 1 Hz with zero latency from the FTMS BLE stream.
- VAM (Velocità Ascensionale Media): Real-time climbing speed in vertical meters per hour.
- Stepping Cadence: Direct machine SPM from FTMS or internal accelerometer estimation.
- Status Capsule: Shows connected machine level or manual button selector.
The 9 World Landmarks.
Every Meter Brings You Closer.
Gradura tracks your cumulative vertical ascent in real time. Drag the interactive slider below to preview how your climb conquers global summits.
Petřín Tower
Prague, CZClassic mini Eiffel lookout tower.
Žižkov TV Tower
Prague, CZFuturistic broadcasting spire.
Eiffel Tower
Paris, FRThe world's most famous iron summit.
Ještěd Tower
Liberec, CZIconic sci-fi mountain hotel & transmitter.
Burj Khalifa
Dubai, UAEThe tallest architectural wonder on Earth.
Sněžka Peak
Krkonoše, CZHighest elevation in the Czech Republic.
Großglockner
AustriaMajestic Alpine vertical conquest.
Mont Blanc
Alps, FR/ITThe roof of Western Europe.
Mount Everest
HimalayasThe ultimate peak of human achievement.
Engineered for Every Gym.
Tested on Industry Leaders.
Gradura includes calibrated physics profiles for leading commercial fitness brands, ensuring centimeter-accurate vertical elevation and power calculations.
Matrix Climbmill
C50, C70, Endurance, Performance series
StairMaster Gauntlet
Gauntlet 8, 10G, FreeClimber series with OpenHub
Technogym Climb
Excite Live Climb, Artis Climb
Life Fitness PowerMill
Integrity, Discover SE3 HD / SE4
Precor StairClimber
Resolution, Experience Series
inSPORTline & Spirit
ProfiStair series, Spirit CS900 Stepper
Under the Hood: Standard GATT Bluetooth Service
Gradura speaks the standard Fitness Machine Service (UUID 0x1826) protocol.
It listens on Stair Climber Data (0x2ACF), Step Climber Data (0x2AD0),
and Cross Trainer (0x2ACE) with automated packet defragmentation for high reliability on Garmin BLE chips.
57+ Supported Watches.
One Seamless Experience.
Gradura has been rigorously optimized for memory constraints, battery longevity, and high-contrast readability across round AMOLED and MIP outdoor displays.
Garmin Fenix 9 Pro (51mm / 47mm / 43mm)
Garmin Fenix 9 Pro Solar
Garmin Fenix 9 Standard
Garmin Fenix 8 (47mm / 43mm)
Garmin Fenix 8 Solar (51mm / 47mm)
Garmin Fenix E
Garmin Forerunner 965
Garmin Forerunner 955 / Solar
Garmin Forerunner 265 / 265S
Garmin Forerunner 255 / 255 Music / S
Garmin Enduro 3
Garmin Epix Pro (Gen 2) 51mm / 47mm / 42mm
Garmin Epix (Gen 2)
Garmin Fenix 7 Pro / 7X Pro / 7S Pro
Garmin Fenix 7 / 7X / 7S Standard
Garmin Venu 3 / 3S
Garmin Venu 2 / 2 Plus / 2S
Garmin Vivoactive 5
Requires Garmin Connect IQ API 3.1.0 or higher with BluetoothLowEnergy & FitContributor permissions. Don't see your specific device variant? If it's a round Garmin watch running Connect IQ 3.1+, Gradura will run on it.
Ready to Climb Higher?
Get Gradura Today.
Looking to Sideload (.prg) or Build from Source?
Frequently Asked Questions.
Clear Answers.
Everything you need to know about Bluetooth machine pairing, FIT files, and Garmin compatibility.
How do I know if my gym ClimbMill supports Bluetooth FTMS? ↓
Look for a Bluetooth symbol on the machine's console or an FTMS / OpenHub / Matrix badge. Most commercial gym climbmills manufactured in recent years—including Matrix C50/C70/Endurance, StairMaster Gauntlet 8/10G with OpenHub, Technogym Live/Artis Climb, and Life Fitness Discover—broadcast the standard Bluetooth FTMS (UUID 0x1826) profile automatically.
Do I need my phone with me while climbing? ↓
No! Gradura runs 100% standalone on your Garmin watch. Your watch's internal Bluetooth radio connects directly to the gym machine's console. You can leave your phone in your gym locker—when you finish and save your workout, your watch syncs directly to Garmin Connect via Wi-Fi or Bluetooth when you're back near your phone.
How does Gradura record workouts into Garmin Connect? ↓
Gradura uses Garmin's official ActivityRecording and FitContributor developer APIs. It writes custom developer telemetry fields into your native .fit file, creating rich graphs in the Garmin Connect app for Total Steps, Elevation Gain, VAM (m/h), and Caloric Burn.
What if my machine has no Bluetooth or I'm climbing building stairs? ↓
Switch to Gradura's Standalone Manual Mode. You can adjust resistance levels directly on-screen or using your watch bezel buttons. Gradura uses calibrated mechanical formulas to track your steps, elevation gain, and landmark milestones anywhere.
What is VAM and why is it important? ↓
VAM (Velocità Ascensionale Media) is the standard metric used by professional cyclists, mountain runners, and vertical climbers to measure vertical ascent speed in meters per hour (m/h). It provides an objective pacing metric independent of horizontal distance.
Does Gradura collect any personal data? ↓
None. Zero external telemetry, zero tracking, and no third-party accounts. All sensor reading and workout aggregation happens entirely on-device and is stored exclusively within your own Garmin Connect account.
Is Gradura free on the Garmin Connect IQ Store? ↓
Yes! Gradura is 100% free to install with no subscriptions, locked features, or ads.