Lockable Watch Band Compatibility Guide — Samsung, Apple, Garmin, Fitbit, Kids’ GPS Trackers, and Senior Watches
Our lockable watch bands (also known as locking watch straps, watch bands with lock, or secure smartwatch straps) are designed for safety, comfort, and durability. They’re perfect for active kids, seniors, and individuals with special needs such as Autism (ASD), dementia, or Alzheimer’s — where keeping the device secure on the wrist is crucial.
General Fit
Available in 22 mm and 20 mm, our locking straps fit watches with a standard spring bar — including most kids’ GPS tracker watches and many adult smartwatches. Devices with proprietary connectors may still be compatible using an adapter.
Samsung Watches
22 mm Band
- Galaxy Watch 4 Classic (42 mm & 46 mm)
- Galaxy Watch 5 Pro (45 mm)
- Galaxy Watch 6 Classic (43 mm & 47 mm)
- Galaxy Watch (46 mm)
- Gear S3 Frontier / Classic
- Gear Sport
20 mm Band
- Galaxy Watch 4 (40 mm & 44 mm)
- Galaxy Watch 5 (40 mm & 44 mm)
- Galaxy Watch 6 (40 mm & 44 mm)
- Galaxy Watch Active
- Galaxy Watch Active 2 (40 mm & 44 mm)
- Galaxy Watch (42 mm)
Apple Watches
Use an Apple Watch adapter with the matching band size:
- 38 mm, 40 mm, 41 mm — 20 mm adapter + locking strap
- 42 mm, 44 mm, 45 mm, 49 mm — 22 mm adapter + locking strap
Garmin Watches
Many Garmin models use standard spring bars:
- 22 mm: Fenix 5 / 5 Plus / 6 / 7, Forerunner 935, Instinct, Vivoactive 4 (45 mm)
- 20 mm: Forerunner 245 / 255 / 645, Venu / Venu 2 (40 mm), Vivoactive 3, Vivoactive 4 (40 mm)
QuickFit or proprietary models may require adapters.
Fitbit Watches
Most Fitbits use proprietary connectors. Adapters exist for Versa, Versa 2, Versa 3, Sense, and Ionic.
Kids’ GPS Tracker Watches
Our child-proof locking bands fit most kids’ GPS watches using 20 mm or 22 mm spring bars — like models from Lil Tracker, TickTalk, Xplora, Gator, and Doki.
Senior & Safety Watches
Families and caregivers often choose a secure smartwatch band for seniors, especially in dementia or Alzheimer’s care. Many senior GPS and medical-alert watches use 20 mm or 22 mm spring bars. This product also supports individuals with special needs, including those with Autism (ASD), where the device must stay secure.
How to Measure Your Watch

- Find your watch’s lug width in millimeters.
- Confirm it uses a standard spring bar.
- If it has a proprietary connector, search for an adapter specific to your model and size.
Need help?
Still unsure? Send us your exact watch model and we’ll help you determine the right band and any adapter you may need.