T1 Spark: USB C to Garmin watch adapter

That 5% battery warning. The sinking feeling when your specific Garmin cable is... somewhere else. We've been there. So we designed the solution.

Meet your new favorite piece of tech. The TransitionOne Keychain Adapter is the ridiculously simple, incredibly smart link between your high-performance watch and the universal convenience of USB-C. It's the upgrade you didn't know you were missing, a tiny powerhouse that makes charging the easiest part of your training.

Just clip it to your keys, your gym bag, or your bike kit. Now, any USB-C cable becomes your Garmin cable. Power up from your laptop before a ride, grab a boost from a friend's power bank, or use the same plug as your phone. No more cable chaos. No more pre-race panic. Just power, simplified.

The Tech Breakdown:

• Micro-Sized, Macro-Essential: Engineered to be astonishingly small and lightweight. You'll forget it's there... until it saves your session.
• USB-C Freedom: Welcome to the universal standard. This adapter untethers your Garmin from its proprietary cable and plugs you into the future of charging.
• The Keychain Commandment: Its integrated loop is designed to be a permanent part of your everyday carry. It's not an accessory for your gear; it's a part of it.
• Built for the Grind: A durable, premium build means it's ready to handle the jingle of your keys and the chaos of your transition bag.

Does this work for my watch?

If your watch is using a regular Garmin charger, then it will probably work.
Below you can find the models that we personally confirmed!

• Approach Series: S40, S60, S62, S70
• D2 Series: Air X10, Charlie, Delta, Mach 1
• Enduro Series: Enduro, Enduro 2
• Epix Series: Gen 2 (including Sapphire/Pro models)
• Fenix Series: 5, 5S, 5X  | 6, 6S, 6X, 7, 7S, 7X, 8
• Forerunner Series: 45, 45S, 55, 158, 165, 245 (including Music), 255, 255S, 265, 265S, 745, 935, 945, 955, 965
• Instinct Series: Instinct 1 & 2 (including all Solar/Surf/Tactical editions), Crossover
• Legacy Series: All Saga and Hero Series models
• Quatix Series: 5, 6, 7
• Tactix Series: 7, Charlie, Delta
• Venu Series: Venu, Venu 2, 2S, 2 Plus, Venu Sq, Sq 2 (including Music), Venu 3, 3S
• Vívo Series: Vívomove 3, 3S, Sport, Style, Luxe, Trend | Vívosport | Vívoactive 3, 3 Music, 4, 4S, 5 | Vívosmart 5