Samsung Galaxy Watch Active2 - Aluminium · 44mm vs Samsung Gear S2 - 3GSize, Specs & Wrist Fit Compared
The Samsung Galaxy Watch Active2 - Aluminium · 44mm is 7.8mm shorter, 2.5mm thinner and 21g lighter than the Samsung Gear S2 - 3G.
Measured against the Samsung Galaxy Watch Active2 - Aluminium · 44mm.
- Case width
- 44mmbaseGalaxy Watch Active2 - Aluminium · 44mm44mmsameGear S2 - 3G
- Lug-to-lug
- 44mmbaseGalaxy Watch Active2 - Aluminium · 44mm51.8mm+7.8mmGear S2 - 3G
- Thickness
- 10.9mmbaseGalaxy Watch Active2 - Aluminium · 44mm13.4mm+2.5mmGear S2 - 3G
- Weight
- 30gbaseGalaxy Watch Active2 - Aluminium · 44mm51g+21gGear S2 - 3G
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Samsung
Galaxy Watch Active2 - Aluminium · 44mm
Samsung
Gear S2 - 3G
Which one fits you
On wrists narrower than about 55mm, the Samsung Galaxy Watch Active2 - Aluminium · 44mm is the safer pick — it stays proportionate down to roughly 46mm, where the Samsung Gear S2 - 3G starts to hang over the edge. Above 55mm both sit cleanly, and the Samsung Gear S2 - 3G gives you more presence.
The Samsung Galaxy Watch Active2 - Aluminium · 44mm and Samsung Gear S2 - 3G share a near-identical 44mm case, so wrist presence comes down to thickness, lug-to-lug and weight.
The Samsung Galaxy Watch Active2 - Aluminium · 44mm is the slimmer of the two (10.9mm vs 13.4mm), so it slides under a cuff more easily.
On the wrist the Samsung Galaxy Watch Active2 - Aluminium · 44mm feels lighter (30g vs 51g, case only).
Among the 326 44mm watches we hold thickness for, the Samsung Galaxy Watch Active2 - Aluminium · 44mm is thinner than 95%, so it wears flatter than its width suggests.
Among the 326 44mm watches we hold thickness for, the Samsung Gear S2 - 3G is thinner than 77%, so it wears flatter than its width suggests.
Specification Comparison
| Spec | SamsungGalaxy Watch Active2 - Aluminium · 44mm | SamsungGear S2 - 3G |
|---|---|---|
| Case Width | 44mm | 44mm |
| Lug-to-Lug | 44mm | 51.8mm |
| Thickness | 10.9mm | 13.4mm |
| Weight | 30g | 51g |
| Shape | Circular | Rectangle |
| Water Resistance | 5 ATM | Water resistant |
| GPS | Yes | No |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Screen size | 1.4 inches | 1.2 inches |
| Always-On Display | Yes | Yes |
| Charge time | 2 hours | 2 hours |
| Battery life | 2.5 days | 2 days |
| Battery power | 340 mAh | 300 mAh |
| Has wireless charging | Yes | Yes |
| Has a removable battery | No | No |
| Has a rechargeable battery | Yes | Yes |
| Has a battery level indicator | Yes | Yes |
| Released | 2019 | 2015 |
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 Active2 - Aluminium · 44mm44mm · 10.9mm thick
- Samsung Gear S2 - 3G44mm × 51.8mm · 13.4mm thick
Samsung Galaxy Watch Active2 - Aluminium · 44mm vs Samsung Gear S2 - 3G on a wrist
Put Samsung Galaxy Watch Active2 - Aluminium · 44mm and Samsung Gear S2 - 3G 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 Active2 - Aluminium · 44mm — 44mm case, standing 10.9mm off the wrist.
- Samsung Gear S2 - 3G — 44mm case, 51.8mm lug-to-lug, standing 13.4mm 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 Active2 - Aluminium · 44mm lasts 1.3× as long as the Samsung Gear S2 - 3G (2.5 days against 2 days).
Samsung Galaxy Watch Active2 - Aluminium · 44mmSamsung Gear S2 - 3G
Smartwatch
2.5 days2 days
Full Specification Comparison
114 specs| Spec | Samsung Galaxy Watch Active2 - Aluminium · 44mm | Samsung Gear S2 - 3G |
|---|---|---|
| Design | ||
| width | 44 | 44 |
| height | 44 | 51.8 |
| volume | 21.1 cm³ | — |
| weight | 30 g | 51 g |
| thickness | 10.9 | 13.4 |
| ATM rating | 5 ATM | — |
| resolution | 360 x 360 px | 360 x 360 px |
| screen size | 1.4 inches | 1.2 inches |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Has a display | Yes | Yes |
| pixel density | 364 ppi | 302 ppi |
| width of band | 20 mm | 20 mm |
| water resistance | Waterproof | Water resistant |
| Always-On Display | Yes | Yes |
| has a touch screen | Yes | Yes |
| Gorilla Glass version | Gorilla Glass DX+ | — |
| waterproof depth rating | 50 m | — |
| Watch band is replaceable | Yes | Yes |
| Has sapphire glass display | No | — |
| maximum operating temperature | 40 °C | — |
| Ingress Protection (IP) rating | IP68 | — |
| has branded damage-resistant glass | Yes | Yes |
| lowest potential operating temperature | 0 °C | — |
| Battery | ||
| charge time | 2 hours | 2 hours |
| battery life | 2.5 days | 2 days |
| battery power | 340 mAh | 300 mAh |
| has wireless charging | Yes | Yes |
| has a removable battery | No | No |
| Has a solar power battery | No | — |
| has a rechargeable battery | Yes | Yes |
| Sensors | ||
| has GPS | Yes | No |
| has a compass | Yes | Yes |
| Has a barometer | Yes | Yes |
| has a gyroscope | Yes | — |
| Has a cadence sensor | No | — |
| has an accelerometer | Yes | Yes |
| Monitors perspiration | No | — |
| Has a heart rate monitor | Yes | Yes |
| Has a temperature sensor | No | — |
| Monitors blood oxygenation levels | No | — |
| Features | ||
| RAM | 0.75GB | 0.51GB |
| CPU speed | 2 x 1.15 GHz | 2 x 1 GHz |
| release date | 2019-08-05 | 2015-09-03 |
| Has a stopwatch | Yes | Yes |
| Has smart alarm | No | — |
| Has call control | Yes | Yes |
| Has silent alarm | Yes | Yes |
| has HRV tracking | No | — |
| internal storage | 4GB | 4GB |
| measures VO2 max | No | — |
| Has notifications | Yes | Yes |
| Has ECG technology | Yes | — |
| Locates your phone | Yes | Yes |
| has a front camera | No | — |
| has fall detection | Yes | — |
| has voice commands | Yes | Yes |
| Acquires GPS faster | No | — |
| Has vibrating alerts | Yes | Yes |
| number of microphones | 1 | — |
| shows readiness level | No | — |
| Can be used to answer calls | Yes | Yes |
| measures resting heart rate | Yes | — |
| has irregular heart rate warnings | Yes | — |
| has fast/slow heart rate notifications | Yes | — |
| Has a built-in camera remote control function | Yes | — |
| Connectivity | ||
| has NFC | Yes | Yes |
| Wi-Fi version | Wi-Fi 5 (802.11ac), Wi-Fi 4 (802.11n) | Wi-Fi 4 (802.11n) |
| supports ANT+ | No | — |
| supports Wi-Fi | Yes | Yes |
| supports Galileo | Yes | — |
| Bluetooth version | 5 | 4.1 |
| has a cellular module | No | Yes |
| Is compatible with iOS | Yes | Yes |
| Is compatible with Android | Yes | Yes |
| SIM cards | — | 1 eSIM |
| Miscellaneous | ||
| Has passcode | Yes | Yes |
| Has auto pause | Yes | Yes |
| Is compatible with Windows | No | — |
| Is compatible with Mac OS X | 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 | — |
| 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 | Yes | 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 | — |
| Provides activity reports | Yes | Yes |
| Counts how many calories you've burned | Yes | Yes |
| Activity tracking | ||
| Measures pace | Yes | Yes |
| Tracks distance | Yes | Yes |
| Tracks elevation | Yes | Yes |
| Designed for golf | No | — |
| Tracks your sleep | Yes | Yes |
| Tracks steps taken | Yes | Yes |
| Designed for diving | No | — |
| Has a route tracker | Yes | Yes |
| Has exercise tagging | Yes | Yes |
| Has multi-sport mode | Yes | — |
| Tracks calorie intake | Yes | Yes |
| Provides sleep reports | Yes | Yes |
| Detects activities automatically | Yes | Yes |
| Has a stroke counter for swimming | Yes | — |
Wrist Fit
Samsung Galaxy Watch Active2 - Aluminium · 44mm
Sits best on wrists ~46–63mm wide (≈ 12.3–16.8cm circumference).
Samsung Gear S2 - 3G
Sits best on wrists ~55–74mm wide (≈ 14.7–19.8cm circumference).
Frequently Asked Questions
Is the Samsung Galaxy Watch Active2 - Aluminium · 44mm bigger than the Samsung Gear S2 - 3G?
Both have a 44mm case. Compare their thickness and lug-to-lug above to judge wrist presence.
Which fits a smaller wrist better, the Samsung Galaxy Watch Active2 - Aluminium · 44mm or the Samsung Gear S2 - 3G?
The Samsung Galaxy Watch Active2 - Aluminium · 44mm suits wrists around 46–63mm wide, and the Samsung Gear S2 - 3G around 55–74mm. The one with the smaller lower bound is the safer pick for a small wrist.
Can I see the Samsung Galaxy Watch Active2 - Aluminium · 44mm and Samsung Gear S2 - 3G 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.