I've managed to attach this to my Approach 40 but it's not the best replacement. The connection is not the same as the original Garmin strap.
π Silicone Secure Rings: Replacement Connectors for Garmin Forerunner 220 235 230 35 745 620 630 735XT Bands and Approach S20 S60 S10 S5 S6 Smartwatch - Black
8 Review
πΏ Silicone Watch Band Loop/Holder/Retainer 6-Pack for Garmin Vivoactive 3/Forerunner 645 245/Venu/Vivomove/Fenix 6S/Fenix 5S, Compatible Replacement Fastener Rings
7 Review
Blue/Black Replacement Bands for Garmin π Forerunner 920XT: Enhance Your Fitness Tracking Experience!
6 Review
Neitooh Fitbit Versa Bands: 4-Pack Classic Soft Silicone Sport Straps for Women and Men - Small Size (Black/White/Sand Pink/Lavender)
3 Review
πΆοΈ GELETE Bluetooth Sunglasses: Music, Calls & Polarized Lenses for Men & Women
3 Review
πΆοΈ Bose Frames: Black Audio Sunglasses with Bluetooth Connectivity and Open Ear Headphones
3 Review
Polarized Bluetooth Audio Sunglasses - Flows: Open-Ear Speakers, Extended Battery Life, UVA & UVB Protection, Smart Glasses for Men & Women β Bruno Style (Matte Black)
6 Review
π HTC Vive Tracker (3.0) Triple Pack
3 Review