Side by side · 45 mm / 41 mm
Garmin Venu 3 vs 3S
The Venu 3 gives you a larger case and screen. The Venu 3S is narrower and lighter. Here is what the official numbers mean when you are choosing one for your wrist.
The short answer: 4 mm wider, 7 g heavier
The Venu 3 is 45 mm across; the Venu 3S is 41 mm. Both are 12 mm thick. With their included bands, they weigh 47 g and 40 g respectively. The Venu 3 also has the larger screen and a longer rated battery life in standard smartwatch mode.
That does not make one universally better. Start with the official strap range, then weigh screen size against how much watch you want on your wrist.
Relative case widths
- 41mmVenu 3S
- 45mmVenu 3
Venu 3 and Venu 3S: the differences that matter for size
Scroll sideways on a narrow screen. Battery figures are Garmin’s “up to” ratings, not our test results.
| Specification | Venu 3 | Venu 3S |
|---|---|---|
| Case (width × height × thickness) | 45 × 45 × 12 mm | 41 × 41 × 12 mm |
| Weight with included band | 47 g | 40 g |
| Silicone-band wrist range | 135–200 mm | 110–175 mm |
| Quick-release band width | 22 mm | 18 mm |
| Round AMOLED display | 1.4 in (35.4 mm diameter) | 1.2 in (30.4 mm diameter) |
| Display resolution | 454 × 454 pixels | 390 × 390 pixels |
| Smartwatch mode — rated maximum | Up to 14 days | Up to 10 days |
| Always-on smartwatch mode — rated maximum | Up to 5 days | Up to 5 days |
| GPS-only GNSS mode — rated maximum | Up to 26 hours | Up to 21 hours |
Usage, settings and battery condition affect runtime. Always-on display changes the comparison: Garmin rates both at up to 5 days in that mode. Check the exact mode instead of treating 14 vs 10 days as a guarantee.
What they have in common
Both official specification pages list an AMOLED touchscreen with optional always-on mode, a built-in speaker and microphone, Corning Gorilla Glass 3, and a stainless-steel bezel. This is a focused size comparison, not a complete feature or long-term performance review. Check Garmin’s current regional compatibility details for connected features.
Which one should you try first?
A smaller starting point
Consider the Venu 3S
Start here if you want the narrower case, lower listed weight or the smaller band range: 110–175 mm with the listed silicone band. Its 1.2-inch screen is also smaller, so try reading the display before deciding.
More screen, more case
Consider the Venu 3
Start here if you prefer the 1.4-inch display and the longer standard-smartwatch battery rating. Its listed silicone-band range is 135–200 mm. Check how the wider case sits when you bend your wrist or wear sleeves.
If your wrist is in the overlap, compare both
A wrist circumference of 135–175 mm falls within both listed band ranges. That only means the band ranges overlap; it does not prove both watches will feel right. Wrist shape, lug position, strap adjustment and your preference for a larger screen still matter.
For example, 16 cm is 160 mm, inside both listed ranges. We are not showing a “real 16 cm wrist” test here. Measure your wrist and, where possible, wear both watches at a store. Our wrist-measurement checklist explains what to check.
Choose by dimensions and preference, not gender labels. Neither watch is limited to a particular gender, and “smaller” is not a universal comfort verdict.
Preview the look on your own wrist
- Open the try-on tool and add a clear wrist photo, or resume your existing draft.
- Search for Venu 3 in the watch picker. Choose the Venu 3 45 mm or Venu 3S 41 mm entry and your preferred available color.
- Review the displayed credit cost and sharing choice before generating. Creating another preview uses a generation credit; opening this guide does not.
The result is an AI-generated appearance preview, not a photograph of you wearing a real watch. AI may change case scale, details or color, so comparing two generated images cannot establish an exact 4 mm size difference. Use the official specifications for dimensions and a physical try-on for comfort.
Common Venu 3 vs 3S questions
Is the Venu 3S just a smaller Venu 3?
It is the smaller option in this pair, but the differences are not only cosmetic: case diameter, weight, display, band width, wrist range and rated battery life differ. Both have the same listed 12 mm thickness.
Can I swap the same band between them?
Not directly with the listed standard bands. Venu 3 uses a 22 mm quick-release band; Venu 3S uses an 18 mm quick-release band. Check both the width and attachment compatibility when buying a replacement.
Does the Venu 3 always last four days longer?
No. Garmin rates standard smartwatch mode at up to 14 days for Venu 3 and 10 days for Venu 3S, but both at up to 5 days with the display always on. These are mode-specific maximum ratings, not guaranteed real-world results.
Which is better for a small wrist?
The Venu 3S has the smaller case and lower minimum listed band circumference, making it a sensible first option to investigate. That is not a universal fit recommendation. If you are near a band limit or care about sleep-time comfort, try the physical watch with the intended strap.
Sources & scope
Dimensions and band ranges come from these Garmin Singapore product specifications, checked September 13, 2026. Regional colors, included bands and software features can differ; confirm the exact version sold in your market. This is an independent size guide, not hands-on testing or a Garmin endorsement.
Spotted a specification error? Send TryOnGarmin a correction with the model and official source.