Amazfit makes some of the best value smartwatches on the market, but finding the right watch band can be tricky. The GTR 4 takes a different width than the GTS 4, the Bip 5 uses a different size than the Active 2, and the T-Rex 3 needs a careful check before you buy. This guide covers every major Amazfit family, explains the lug width for each, and links you straight to compatible bands.
Amazfit Watch Band Sizes: Quick Reference Table
| Amazfit Model / Family | Lug Width | Connector Type |
|---|---|---|
| GTR 4 | 22mm | Standard quick-release |
| GTR / GTR 2 | 22mm | Standard quick-release |
| Bip 5 | 22mm | Standard quick-release |
| GTS 4 | 20mm | Standard quick-release |
| GTS 4 Mini | 20mm | Standard quick-release |
| Active / Active 2 | 20mm | Standard quick-release |
| Cheetah Square | 20mm | Standard quick-release |
| T-Rex 3 | 22mm | Check connector type (see note below) |
All bands in our Amazfit watch bands collection use standard quick-release pins. Use the width above to filter by your model.
GTR Family - 22mm Bands
The Amazfit GTR range is the most popular Amazfit family for third-party bands. The GTR 4, GTR 3 Pro, GTR 2 and GTR all use a 22mm lug width with standard quick-release pins. This means any quality 22mm watch band with quick-release pins will fit without tools.
Popular choices for GTR models include:
- Silicone sport bands - ideal for workouts and daily wear
- Milanese mesh bands - polished look for the office
- Nylon NATO-style straps - lightweight and breathable
- Genuine leather bands - premium feel for formal occasions
Bip 5 - 22mm Bands
The Amazfit Bip 5 uses the same 22mm quick-release standard as the GTR family. This is good news for anyone upgrading from the Bip series - the same bands that fit your old GTR will fit the Bip 5. Browse the full range of Amazfit-compatible 22mm bands here.
GTS 4 and GTS Family - 20mm Bands
The GTS range is slimmer and uses 20mm lug width across all current models: the GTS 4, GTS 4 Mini and the original GTS. All use standard quick-release pins, so swapping bands takes seconds.
The 20mm size is also shared with the Active, Active 2 and Cheetah Square. Any 20mm quick-release band in our store will fit these models directly.
Good band choices for GTS and Active models:
- Slim silicone sport bands - comfortable all-day wear
- Woven nylon straps - breathable for summer
- Slim Milanese mesh - smart casual look
- Soft leather bands - compact and elegant
Active and Active 2 - 20mm Bands
Both the Amazfit Active and Active 2 use 20mm quick-release bands. The Active 2 in particular has become popular as a budget training watch, and a good band upgrade is one of the easiest improvements you can make. A breathable silicone or nylon sport strap keeps sweat from building up during long sessions.
T-Rex 3 - 22mm with a Caution
The Amazfit T-Rex 3 is a rugged outdoor watch and technically uses 22mm lugs. However, some T-Rex variants use a screw-mounted strap system or a proprietary adapter rather than a standard push-pin quick-release. Before ordering a standard 22mm quick-release band for the T-Rex 3, check which connector system your specific unit uses.
If your T-Rex 3 uses standard quick-release pins, any 22mm band from our Amazfit collection will fit. If it uses screw-mount adapters, you will need to either use the adapter or source a compatible band specifically designed for the T-Rex connector.
Are Amazfit Bands Universal? - FAQ
Are Amazfit watch bands interchangeable between models?
Partially. All 22mm Amazfit models (GTR 4, GTR, GTR 2, Bip 5) share the same band width and connector style, so bands are interchangeable within that group. All 20mm models (GTS 4, GTS 4 Mini, Active, Active 2, Cheetah Square) are interchangeable with each other. However, 22mm and 20mm bands are not interchangeable between the two groups.
What size band does the Amazfit GTR 4 use?
The Amazfit GTR 4 uses a 22mm quick-release band. Any standard 22mm quick-release strap fits without tools or adapters.
What size band does the Amazfit GTS 4 use?
The Amazfit GTS 4 uses a 20mm quick-release band. The GTS 4 Mini also uses 20mm.
Do Samsung or Garmin bands fit Amazfit watches?
Yes, if the lug widths match. A 22mm Samsung Galaxy Watch band will fit the Amazfit GTR 4, and a 20mm Samsung Galaxy Watch band will fit the GTS 4. The connector is a universal quick-release pin, not brand-specific.
What is the best band for Amazfit Active 2?
For sport and training use, a breathable silicone or perforated nylon 20mm quick-release band is the best choice. For everyday wear, a slim Milanese mesh or leather band works well and keeps the Active 2 looking clean outside the gym.
Browse the full Amazfit watch bands collection to find the right fit for your model.
📌 Complete Guide
For the full guide, see our Samsung Galaxy Watch Bands Complete Guide 2026.