Samsung Galaxy Watch Active vs Samsung Galaxy Watch6 - Wi-Fi · 40mmSize, Specs & Wrist Fit Compared
The Samsung Galaxy Watch Active is 0.7mm wider, 0.9mm shorter, 1.5mm thicker and 3.7g lighter than the Samsung Galaxy Watch6 - Wi-Fi · 40mm. Both are circular.
Measured against the Samsung Galaxy Watch Active.
- Case width
- 39.5mmbaseGalaxy Watch Active38.8mm−0.7mmGalaxy Watch6 - Wi-Fi · 40mm
- Lug-to-lug
- 39.5mmbaseGalaxy Watch Active40.4mm+0.9mmGalaxy Watch6 - Wi-Fi · 40mm
- Thickness
- 10.5mmbaseGalaxy Watch Active9mm−1.5mmGalaxy Watch6 - Wi-Fi · 40mm
- Weight
- 25gbaseGalaxy Watch Active28.7g+3.7gGalaxy Watch6 - Wi-Fi · 40mm
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Samsung
Galaxy Watch Active
Samsung
Galaxy Watch6 - Wi-Fi · 40mm
Which one fits you
Both need much the same wrist — roughly 42–58mm across the flat of the wrist. Neither will fit where the other won't, so decide on thickness, weight and features instead.
The Samsung Galaxy Watch Active wears larger than the Samsung Galaxy Watch6 - Wi-Fi · 40mm (39.5mm vs 38.8mm case), giving it more wrist presence — and needing a wider wrist to sit cleanly.
The Samsung Galaxy Watch6 - Wi-Fi · 40mm is the slimmer of the two (9mm vs 10.5mm), so it slides under a cuff more easily.
On the wrist the Samsung Galaxy Watch Active feels lighter (25g vs 28.7g, case only).
The Samsung Galaxy Watch Active is middle-of-the-pack for thickness among the 418 40mm watches in the database.
Among the 340 39mm watches we hold thickness for, the Samsung Galaxy Watch6 - Wi-Fi · 40mm is thinner than 93%, so it wears flatter than its width suggests.
Specification Comparison
| Spec | SamsungGalaxy Watch Active | SamsungGalaxy Watch6 - Wi-Fi · 40mm |
|---|---|---|
| Case Width | 39.5mm | 38.8mm |
| Lug-to-Lug | 39.5mm | 40.4mm |
| Thickness | 10.5mm | 9mm |
| Weight | 25g | 28.7g |
| Shape | Circular | Circular |
| Water Resistance | 5 ATM | 5 ATM |
| GPS | Yes | Yes |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Screen size | 1.1 inches | 1.3 inches |
| Always-On Display | Yes | Yes |
| Charge time | 2 hours | 1.8 hours |
| Battery life | 2 days | 1.25 days |
| Battery power | 230 mAh | 300 mAh |
| Has wireless charging | Yes | Yes |
| Has a removable battery | No | No |
| Has a solar power battery | No | No |
| Has a rechargeable battery | Yes | Yes |
| Has a battery level indicator | Yes | Yes |
| Released | 2019 | 2023 |
Hover a row to highlight that measurement in the schematics below.
2D Dimension Schematics
Every case drawn to scale on a shared centre — from above, and in profile against the wrist. Built from the measurements, so it works for every watch whether or not it has a photo.
- Samsung Galaxy Watch Active39.5mm · 10.5mm thick
- Samsung Galaxy Watch6 - Wi-Fi · 40mm38.8mm × 40.4mm · 9mm thick
Samsung Galaxy Watch Active vs Samsung Galaxy Watch6 - Wi-Fi · 40mm on a wrist
Put Samsung Galaxy Watch Active and Samsung Galaxy Watch6 - Wi-Fi · 40mm on the same arm, sized to your own wrist, and turn it. Side by side or stacked on one spot, whichever answers the question faster.
- Samsung Galaxy Watch Active — 39.5mm case, standing 10.5mm off the wrist.
- Samsung Galaxy Watch6 - Wi-Fi · 40mm — 38.8mm case, 40.4mm lug-to-lug, standing 9mm off the wrist.
Whether that clears your wrist edges is the question worth answering, and it depends on your wrist rather than on the case diameter.
See them on a wrist in 3DCase shapes are generated from each watch's published measurements — case width, lug-to-lug and thickness — not from manufacturer 3D models, so the proportions are accurate while the dial is generic.
Battery life compared
Furthest apart in Smartwatch mode, where the Samsung Galaxy Watch Active lasts 1.6× as long as the Samsung Galaxy Watch6 - Wi-Fi · 40mm (2 days against 30 hours).
Samsung Galaxy Watch ActiveSamsung Galaxy Watch6 - Wi-Fi · 40mm
Battery Saver
—100 hoursSmartwatch
2 days1.25 daysGPS
2 hours—
Full Specification Comparison
116 specs| Spec | Samsung Galaxy Watch Active | Samsung Galaxy Watch6 - Wi-Fi · 40mm |
|---|---|---|
| Design | ||
| width | 39.5 | 38.8 |
| height | 39.5 | 40.4 |
| volume | 16.38 cm³ | 14.11 cm³ |
| weight | 25 g | 28.7 g |
| thickness | 10.5 | 9 |
| ATM rating | 5 ATM | 5 ATM |
| resolution | 360 x 360 px | 432 x 432 px |
| screen size | 1.1 inches | 1.3 inches |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Has a display | Yes | Yes |
| pixel density | 463 ppi | 453 ppi |
| width of band | 20 mm | 20 mm |
| water resistance | Waterproof | Waterproof |
| Always-On Display | Yes | Yes |
| has a touch screen | Yes | Yes |
| Gorilla Glass version | Gorilla Glass 3 | — |
| waterproof depth rating | 50 m | 50 m |
| Watch band is replaceable | Yes | Yes |
| Has sapphire glass display | No | Yes |
| Ingress Protection (IP) rating | IP68 | IP68 |
| has branded damage-resistant glass | Yes | No |
| Battery | ||
| charge time | 2 hours | 1.8 hours |
| battery life | 2 days | 1.25 days |
| battery power | 230 mAh | 300 mAh |
| has wireless charging | Yes | Yes |
| has a removable battery | No | No |
| battery life with GPS on | 2 hours | — |
| Has a solar power battery | No | No |
| has a rechargeable battery | Yes | Yes |
| battery life in power save mode | — | 100 hours |
| Sensors | ||
| has GPS | Yes | Yes |
| has a compass | Yes | Yes |
| Has a barometer | Yes | Yes |
| has a gyroscope | Yes | Yes |
| Has a cadence sensor | No | No |
| has an accelerometer | Yes | Yes |
| Monitors perspiration | No | No |
| Has a heart rate monitor | Yes | Yes |
| Has a temperature sensor | No | Yes |
| Monitors blood oxygenation levels | No | Yes |
| Features | ||
| RAM | 0.75GB | 2GB |
| CPU speed | 2 x 1.15 GHz | 2 x 1.4 GHz |
| release date | 2019-02-20 | 2023-07-26 |
| Has a stopwatch | Yes | Yes |
| Has smart alarm | No | No |
| warranty period | 1 years | — |
| Has call control | Yes | Yes |
| Has silent alarm | Yes | Yes |
| internal storage | 4GB | 16GB |
| Has notifications | Yes | Yes |
| Has ECG technology | No | Yes |
| Locates your phone | Yes | Yes |
| has a front camera | No | — |
| has fall detection | Yes | Yes |
| has voice commands | Yes | Yes |
| Acquires GPS faster | No | No |
| Has vibrating alerts | Yes | Yes |
| number of microphones | 1 | 1 |
| Can be used to answer calls | No | Yes |
| has irregular heart rate warnings | No | Yes |
| Has a built-in camera remote control function | No | Yes |
| has HRV tracking | — | No |
| measures VO2 max | — | Yes |
| shows readiness level | — | No |
| measures resting heart rate | — | Yes |
| has fast/slow heart rate notifications | — | Yes |
| Connectivity | ||
| has NFC | Yes | Yes |
| Wi-Fi version | Wi-Fi 4 (802.11n) | Wi-Fi 4 (802.11n) |
| supports ANT+ | No | No |
| supports Wi-Fi | Yes | Yes |
| supports Galileo | Yes | Yes |
| Bluetooth version | 4.2 | 5.3 |
| has a cellular module | No | No |
| Is compatible with iOS | Yes | No |
| Is compatible with Android | Yes | Yes |
| Miscellaneous | ||
| has aptX | No | — |
| Has passcode | Yes | Yes |
| Has auto pause | Yes | Yes |
| Is compatible with Windows | No | No |
| Is compatible with Mac OS X | No | No |
| has an external memory slot | No | No |
| Compatible with smart scales | Yes | Yes |
| has a battery level indicator | Yes | Yes |
| has a socket for a 3.5 mm audio jack | No | No |
| Compatible with external heart rate monitors | Yes | Yes |
| App & Software | ||
| Ad-free | Yes | Yes |
| Free app | Yes | Yes |
| Tracks BMI | Yes | Yes |
| Has coaching | Yes | Yes |
| Supports routes | Yes | Yes |
| Has achievements | Yes | Yes |
| Has goal setting | Yes | Yes |
| Has exercise diary | Yes | Yes |
| Has weight tracking | No | Yes |
| Predicts start date | Yes | Yes |
| Tracks water intake | Yes | Yes |
| Has inactivity alerts | Yes | Yes |
| Has period notifications | Yes | Yes |
| Has temperature tracking | No | Yes |
| Provides activity reports | Yes | Yes |
| Counts how many calories you've burned | Yes | Yes |
| Includes maps | — | Yes |
| Activity tracking | ||
| Measures pace | No | Yes |
| Tracks distance | Yes | Yes |
| Tracks elevation | Yes | Yes |
| Designed for golf | No | No |
| Tracks your sleep | Yes | Yes |
| Tracks steps taken | Yes | Yes |
| Designed for diving | No | No |
| Has a route tracker | No | Yes |
| Has exercise tagging | Yes | Yes |
| Has multi-sport mode | Yes | Yes |
| Tracks calorie intake | Yes | Yes |
| Provides sleep reports | Yes | Yes |
| Detects activities automatically | Yes | Yes |
| Has a stroke counter for swimming | No | Yes |
Wrist Fit
Samsung Galaxy Watch Active
Sits best on wrists ~42–56mm wide (≈ 11.2–15.0cm circumference).
Samsung Galaxy Watch6 - Wi-Fi · 40mm
Sits best on wrists ~43–58mm wide (≈ 11.5–15.5cm circumference).
Frequently Asked Questions
Is the Samsung Galaxy Watch Active bigger than the Samsung Galaxy Watch6 - Wi-Fi · 40mm?
The Samsung Galaxy Watch Active is bigger — 39.5mm vs 38.8mm case width.
Which fits a smaller wrist better, the Samsung Galaxy Watch Active or the Samsung Galaxy Watch6 - Wi-Fi · 40mm?
The Samsung Galaxy Watch Active suits wrists around 42–56mm wide, and the Samsung Galaxy Watch6 - Wi-Fi · 40mm around 43–58mm. The one with the smaller lower bound is the safer pick for a small wrist.
Can I see the Samsung Galaxy Watch Active and Samsung Galaxy Watch6 - Wi-Fi · 40mm side by side at true scale?
Yes — the schematics and photos above show both watches at matched scale, and our fit tool overlays each on your wrist width.