A 20mm watch band fits any watch with a 20mm lug width, regardless of brand. This is the most common watch band size in the world, found across countless smartwatches, fitness trackers and traditional watches, including a wide range of Garmin and Samsung Galaxy Watch models. If you know your watch takes a 20mm band, every product in this collection will fit, with no need to match a specific brand or model. Available in leather, NATO, silicone and Milanese loop styles, there is a band here for everyday wear, the office and everything in between. Australian customers get fast AusPost shipping, a 12-month local warranty and a satisfaction guarantee on every order.
Why Band Width Matters More Than Brand
Watch bands attach to the case using two small bars (lugs) that sit a fixed distance apart, and that distance, measured in millimetres, is the band width. Provided the band width matches your watch's lug width, the brand of the watch and the brand of the band are unrelated. A 20mm band will fit any watch case manufactured to take a 20mm band, whether that watch is a smartwatch, a fitness tracker, or a traditional analogue watch.
This is different from proprietary attachment systems used by some smartwatch brands, where the connector shape itself (not just the width) determines compatibility. Standard spring bar bands and NATO straps, like those in this collection, rely purely on width matching, which makes shopping for a replacement band considerably simpler once you know your number.
20mm is the single most common watch band width worldwide, appearing across a huge range of standard-size watches, mid-size smartwatch cases, and many Garmin and Samsung models, making it the safest size to check first if you are unsure.
How to Check If Your Watch Takes a 20mm Band
There are a few reliable ways to confirm your watch's band width before ordering:
- Check the watch manufacturer's specifications. Most brands list the band or strap width in the technical specifications for each model, often listed as "lug width" or "band width."
- Measure your current band. Using a ruler, measure the width of your existing band at the point where it meets the watch case, not at the buckle end, as some bands taper.
- Check the underside of the existing band. Some manufacturers stamp the width directly onto the inside of the strap.
- Look up your specific model. If you own a Garmin or Samsung watch, the Garmin Band Compatibility Guide and Samsung Band Compatibility Guide list the band width required for each model.
Once you have confirmed 20mm is the correct width for your watch, any band in this collection will fit.
Available Strap Styles
Silicone Bands
Soft, flexible and water resistant, silicone is the most popular choice for everyday and active wear. It suits daily wear, workouts and sleep tracking, dries quickly after sweat or moisture exposure, and is available in a wide range of colourways to suit different styles and occasions.
Leather Bands
Genuine leather bands give any 20mm watch a classic, timeless look suited to office wear and formal occasions. Leather feels premium against the skin and develops character over time, though it is best kept away from sweat and water exposure.
NATO Bands
A NATO strap is a single length of woven nylon that threads through the watch case and back on itself, originally designed for military use. It is lightweight, durable, and adds a casual, layered look to any watch. Because the strap passes underneath the case rather than attaching at two separate points, a NATO band also offers a useful safety benefit: if one spring bar fails, the watch stays secured to the wrist rather than falling off.
Milanese Loop Bands
A stainless steel mesh band with a magnetic clasp, giving any 20mm watch a noticeably more refined look for the office or formal occasions. The magnetic closure allows stepless adjustment for a precise fit without needing to locate a specific hole, and the woven mesh construction provides better airflow than a solid band.
Choosing the Right 20mm Band
- For daily fitness and workouts: Silicone is the clear recommendation. It resists sweat and moisture, dries quickly, and holds securely during exercise.
- For sleep tracking: Silicone's soft, flexible construction makes it the most comfortable option for overnight wear, particularly relevant for fitness trackers and smartwatches used for sleep monitoring.
- For the office or smarter occasions: Leather or a Milanese loop dresses up any 20mm watch considerably compared to a standard silicone sport band.
- For a casual, military-inspired look: A NATO strap adds texture and a relaxed feel, and suits watches that are worn for everyday use rather than formal settings.
- For sensitive skin: The Milanese loop's open mesh weave allows more airflow than solid silicone, which can help reduce irritation during extended wear.
- For colour and style variety: Silicone and NATO bands are both available in multiple colourways, making it easy to build a small rotation and match the band to your outfit or activity.
Who Buys 20mm Watch Bands?
Owners of mid-size smartwatches and fitness trackers are a major source of demand for this collection, since 20mm is one of the most widely used widths across the Garmin and Samsung Galaxy Watch ranges.
Traditional watch owners looking to refresh an analogue watch often turn to this collection for leather or NATO straps, since 20mm is also one of the most common lug widths on standard-size watches.
NATO strap enthusiasts who enjoy building a rotation of colours and patterns appreciate how easily a NATO band can be swapped between watches that share the same 20mm width, regardless of brand.
Anyone switching between styles for different occasions, such as silicone for the gym and leather or a Milanese loop for the office, finds value in building a small rotation of 20mm bands rather than relying on a single original strap.
How to Care for Your 20mm Band
- Silicone bands: Wipe with a damp cloth and mild soap. Rinse thoroughly and allow to dry before reattaching. Avoid frequent use of alcohol-based cleaners, which can degrade the silicone surface over time.
- Leather bands: Keep away from water and sweat wherever possible. Wipe with a dry cloth after any moisture contact, and condition occasionally with a leather conditioner to maintain suppleness. Avoid wearing leather bands during exercise.
- NATO bands: Hand wash with mild soap and air dry flat. Do not tumble dry. These bands are not intended for swimming or extended water exposure.
- Milanese loop bands: Wipe with a soft damp cloth regularly. For more thorough cleaning, a soft-bristled brush with mild soapy water helps clean between the mesh weave. Dry thoroughly to prevent water marks.
General tip: If you wear your watch daily, rotating between two bands gives each one time to fully dry, which extends the life of both. See the full watch band cleaning and maintenance guide for more detail.
Frequently Asked Questions
Will a 20mm band fit any watch brand?
Yes, provided your watch's lug width is 20mm. Band width compatibility is determined by the physical distance between the lugs on the watch case, not the watch brand. Any band in this collection will fit any watch with a 20mm lug width, regardless of manufacturer.
How do I find out if my watch takes a 20mm band?
Check your watch manufacturer's product specifications for the listed band or lug width, measure your current band at the point it meets the case, or check the underside of your existing strap, as some are stamped with the width. If you own a Garmin or Samsung watch, the Garmin Band Compatibility Guide and Samsung Band Compatibility Guide list the band width for each model.
Which watches commonly use a 20mm band?
20mm is the most widely used watch band width, appearing across a large range of smartwatches, fitness trackers and standard-size traditional watches. Many mid-size Garmin and Samsung Galaxy Watch models use this width, alongside countless analogue watches. Always confirm the exact width for your specific watch before ordering, since model names alone do not guarantee a particular band size.
Can I use a 20mm band on a watch that needs 22mm?
No. The band width must match the lug width on your watch case exactly. A 20mm band will not securely fit a 22mm lug, and a 22mm band will not fit a 20mm lug. Using the wrong width affects both the appearance and the secure fit of the band.
What is a NATO strap and how is it different from a standard band?
A NATO strap is a single continuous length of woven nylon that passes underneath the watch case and back through itself, rather than attaching at two separate points like a standard two-piece band. This means that if one spring bar fails, the watch remains secured to your wrist by the other side of the strap, offering an added layer of security alongside its casual, military-inspired look.
How do I attach a 20mm band to my watch?
Most watches use either a spring bar or a tool-free quick-release mechanism. For quick-release bands, locate the small lever on the underside of the band where it meets the watch case, press it inward, and slide the band out, then slide the new band in until it clicks into place. For traditional spring bar bands, a spring bar tool may be required to compress and remove the pin. NATO straps are threaded through the existing spring bar rather than requiring removal. See the full band-changing guide for step-by-step instructions.
Are 20mm bands water resistant?
Silicone bands in this collection are water resistant and suitable for everyday splash exposure, sweat during exercise and general daily wear. Leather, NATO and Milanese loop bands are not recommended for swimming or extended water exposure. Your watch's own water resistance rating is separate from the band and should be confirmed with the watch manufacturer directly.
Do you ship 20mm bands to all states in Australia?
Yes. OzStraps ships via Australia Post to all Australian states and territories. Standard Parcel Post applies to orders over $30, with Express Post available for an additional charge. Orders placed before 1pm on weekdays are dispatched the same day.
What is the warranty on these bands?
All OzStraps bands include a 12-month local warranty. If a band is defective or develops a fault within this period, contact the OzStraps team at sales@ozstraps.com.au for a replacement or resolution.
Can I return a 20mm band if it does not fit or I change my mind?
OzStraps offers a satisfaction guarantee. If you are not 100% happy with your purchase, contact the team to arrange an exchange or refund. See the Returns Policy page for full details and conditions.
Why Buy from OzStraps?
OzStraps is an Australian online retailer specialising exclusively in smartwatch bands and accessories. A few practical reasons to buy here:
- 12-month local warranty on every band. Issues are resolved directly by the Australian team without the need to contact an overseas supplier.
- 100% satisfaction guarantee. If the band purchased is not right, OzStraps will arrange an exchange or refund.
- Same-day dispatch. Orders placed before 1pm on weekdays are sent the same day via Australia Post.
- Free shipping on orders over $30 via AusPost Parcel Post with tracking. Express Post is available for a small additional charge.
- Australian stock. Orders ship domestically, which typically means faster delivery than international sellers.
- Width-based shopping. No need to search by brand or model, simply confirm your band width and shop with confidence.
Shop by Size
If 20mm is not the correct width for your watch, OzStraps stocks a full range of standard and quick-release band sizes to suit other models.