FitBit

• used FitBit Charge for years
• tried but did not like Google smartwatch
• in 2026, switched to FitBit Air

Bands

I'd like try putting FitBit Air and normal watch on the same band. Lug sizes:

• FitBit Air: 18mm
• my Casio MQ-24: 16mm
• Nina's Timex Women's Easy Reader: 12mm

Nobody nobody makes 16mm-to-18mm nor 12mm-to-18mm adapters...

They do make adapters for:

• 16mm to 22mm: https://www.amazon.com/Connection-Replacement-GW-M5610-GLS-8900-Accessories/dp/B0FCF7TGDZ/
• 16mm to 20mm: https://www.amazon.com/Richie-GWM5610-16mm-Lug-Adapters-GShock/dp/B07X2JCP9V
• 16mm to 20mm Jays and Kays - 0rdered form US-based company on June 28, 2026
• 12mm to 20mm: https://www.amazon.com/Culnflun-Connectors-Release-Stainless-Adapters/dp/B0GFMY9TPQ

And here are the straps:

• https://www.amazon.com/Ritche-Military-Ballistic-Buckle-Premium/dp/B098NWDNQK
• https://www.amazon.com/Black-strap-style-Finish-Buckle/dp/B07BZPQGCC/
• https://www.amazon.com/Archer-Watch-Straps-Nylon-Choice/dp/B07V8LM5G4/
• https://www.amazon.com/Benchmark-Straps-Ballistic-Watchband-Removal/dp/B01FEY1EOC
• https://www.amazon.com/ANNEFIT-One-Piece-Waterproof-Military-Straps/dp/B0BF9SVVQF - ordered on June 28, 2026

And, to attach FitBit Air to the band, there are printables:

• https://www.printables.com/model/1747694-fitbit-air-adapter-for-bicep-straps-or-nato-bands etsy
• https://www.printables.com/model/1756985-google-fitbit-air-nato-strap-adapter (requires support material)