Clémentine Geoffray

"My 2025 trail season starts soon with the World Championships on the horizon! After my European Championship victory last year, I'm laser-focused on defending my world title, and the ENGO glasses with the new heart rate zone tracking are proving instrumental in optimizing my preparation.
The team invited me to their office in Grenoble to test this new feature. As someone who transitioned from kayaking to trail running during my studies at the Institute of Political Studies, I've always valued precision, but the constant watch-checking disrupted my running economy and mental focus.
Thanks to the heart rate zone gauge, I can naturally adjust my pace and maintain a fluid stride without breaking form. During my flat-terrain sessions, I can see in real-time if I'm pushing too hard or not enough, which helps me manage my intervals and recovery with the precision I need at the world-class level. This little widget accompanies me during my threshold sessions to easily stay in the target zone without having to look at my watch, allowing me to focus purely on my technique and breathing.
After overcoming my rectus femoris injury earlier in my career, monitoring my exertion levels has become even more critical to prevent setbacks. ENGO has transformed how I approach my training, giving me the confidence to push my limits while maintaining the flow state that's essential for peak performance in technical mountain terrain.
I recognize game-changing technology when I see it. I encourage you to try it out and experience the mental clarity and performance benefits for yourself!"
Discover engo3




Everything runners ask, answered.
Will I even notice a difference?
The engo3 uses fixed tinted lenses (category 3), perfect for very sunny conditions. The engo3 Photochromic features photochromic lenses that automatically adapt to light levels (cat. 0 to 3), making it ideal for changing light conditions.
Is engo3 compatible with Garmin?
Yes it is, with over 81+ models of Garmin devices, plus Apple Watch.
How is engo3 different from Meta Oakley Vanguard?
engo3 is a pure performance display built for serious runners and cyclists: a lightweight AR heads-up display (38.5g) that projects your stats (pace, heart rate, cadence, and more) right in your line of sight, with 20+ hours of battery life and no camera, music, or notifications to distract you.
The Oakley Meta Vanguard is a general-purpose smart glasses product with a built-in camera and Meta AI, giving you sport stats through voice commands or audio rather than a visual display, with about 9 hours of battery life. In short: engo3 keeps your eyes on the road and your data always visible, Vanguard is a multitasking device where sport is one feature among many.
How long does the engo3 battery last?
24+hours
Can I use engo3 for trail running or ultras?
Yes!
Does engo3 have a camera?
No, engo3 doesn't have a camera. It's built purely as a data display: no camera, no music, no notifications, just your real-time stats (pace, heart rate, cadence, etc.) projected in your field of view. That's a deliberate choice to keep it light (38.5g) and focused on performance rather than content capture.
What is the weight of engo3?
38.5 gr
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