Samsung Galaxy Watch 4 - LTE · 44mm vs Samsung Galaxy Watch Active2 - Aluminium · 44mmSize, Specs & Wrist Fit Compared
The Samsung Galaxy Watch 4 - LTE · 44mm is 0.4mm wider, 0.7mm shorter, 1.1mm thinner and 0.3g heavier than the Samsung Galaxy Watch Active2 - Aluminium · 44mm. Both are circular.
Measured against the Samsung Galaxy Watch 4 - LTE · 44mm.
- Case width
- 44.4mmbaseGalaxy Watch 4 - LTE · 44mm44mm−0.4mmGalaxy Watch Active2 - Aluminium · 44mm
- Lug-to-lug
- 43.3mmbaseGalaxy Watch 4 - LTE · 44mm44mm+0.7mmGalaxy Watch Active2 - Aluminium · 44mm
- Thickness
- 9.8mmbaseGalaxy Watch 4 - LTE · 44mm10.9mm+1.1mmGalaxy Watch Active2 - Aluminium · 44mm
- Weight
- 30.3gbaseGalaxy Watch 4 - LTE · 44mm30g−0.3gGalaxy Watch Active2 - Aluminium · 44mm
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Samsung
Galaxy Watch 4 - LTE · 44mm
Samsung
Galaxy Watch Active2 - Aluminium · 44mm
Which one fits you
Both need much the same wrist — roughly 46–63mm 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 4 - LTE · 44mm and Samsung Galaxy Watch Active2 - Aluminium · 44mm share a near-identical 44.4mm case, so wrist presence comes down to thickness, lug-to-lug and weight.
The Samsung Galaxy Watch 4 - LTE · 44mm is the slimmer of the two (9.8mm vs 10.9mm), so it slides under a cuff more easily.
Among the 298 44mm watches we hold thickness for, the Samsung Galaxy Watch 4 - LTE · 44mm is thinner than 99%, so it wears flatter than its width suggests.
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.
Specification Comparison
| Spec | SamsungGalaxy Watch 4 - LTE · 44mm | SamsungGalaxy Watch Active2 - Aluminium · 44mm |
|---|---|---|
| Case Width | 44.4mm | 44mm |
| Lug-to-Lug | 43.3mm | 44mm |
| Thickness | 9.8mm | 10.9mm |
| Weight | 30.3g | 30g |
| Shape | Circular | Circular |
| Water Resistance | 5 ATM | 5 ATM |
| GPS | Yes | Yes |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Screen size | 1.4 inches | 1.4 inches |
| Always-On Display | Yes | Yes |
| Charge time | 2 hours | 2 hours |
| Battery life | 2 days | 2.5 days |
| Battery power | 361 mAh | 340 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 | 2021 | 2019 |
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 4 - LTE · 44mm44.4mm × 43.3mm · 9.8mm thick
- Samsung Galaxy Watch Active2 - Aluminium · 44mm44mm · 10.9mm thick
Samsung Galaxy Watch 4 - LTE · 44mm vs Samsung Galaxy Watch Active2 - Aluminium · 44mm on a wrist
Put Samsung Galaxy Watch 4 - LTE · 44mm and Samsung Galaxy Watch Active2 - Aluminium · 44mm 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 4 - LTE · 44mm — 44.4mm case, standing 9.8mm off the wrist.
- Samsung Galaxy Watch Active2 - Aluminium · 44mm — 44mm case, standing 10.9mm 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 Active2 - Aluminium · 44mm lasts 1.3× as long as the Samsung Galaxy Watch 4 - LTE · 44mm (2.5 days against 2 days).
Samsung Galaxy Watch 4 - LTE · 44mmSamsung Galaxy Watch Active2 - Aluminium · 44mm
Smartwatch
2 days2.5 daysBattery Saver
40 hours—
Full Specification Comparison
118 specs| Spec | Samsung Galaxy Watch 4 - LTE · 44mm | Samsung Galaxy Watch Active2 - Aluminium · 44mm |
|---|---|---|
| Design | ||
| width | 44.4 | 44 |
| height | 43.3 | 44 |
| volume | 18.84 cm³ | 21.1 cm³ |
| weight | 30.3 g | 30 g |
| thickness | 9.8 | 10.9 |
| ATM rating | 5 ATM | 5 ATM |
| resolution | 450 x 450 px | 360 x 360 px |
| screen size | 1.4 inches | 1.4 inches |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Has a display | Yes | Yes |
| pixel density | 455 ppi | 364 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 DX+ | Gorilla Glass DX+ |
| waterproof depth rating | 50 m | 50 m |
| Watch band is replaceable | Yes | Yes |
| Has sapphire glass display | No | No |
| Ingress Protection (IP) rating | IP68 | IP68 |
| has branded damage-resistant glass | Yes | Yes |
| maximum operating temperature | — | 40 °C |
| lowest potential operating temperature | — | 0 °C |
| Battery | ||
| charge time | 2 hours | 2 hours |
| battery life | 2 days | 2.5 days |
| battery power | 361 mAh | 340 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 |
| battery life in power save mode | 40 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 | No |
| Monitors blood oxygenation levels | Yes | No |
| Features | ||
| RAM | 1.5GB | 0.75GB |
| CPU speed | 2 x 1.18 GHz | 2 x 1.15 GHz |
| release date | 2021-08-11 | 2019-08-05 |
| Has a stopwatch | Yes | Yes |
| Has smart alarm | No | No |
| warranty period | 1 years | — |
| Has call control | Yes | Yes |
| Has silent alarm | Yes | Yes |
| has HRV tracking | Yes | No |
| internal storage | 16GB | 4GB |
| measures VO2 max | Yes | No |
| Has notifications | Yes | Yes |
| Has ECG technology | Yes | Yes |
| Locates your phone | Yes | Yes |
| has a front camera | No | 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 |
| shows readiness level | No | No |
| Can be used to answer calls | Yes | Yes |
| measures resting heart rate | Yes | Yes |
| has irregular heart rate warnings | Yes | Yes |
| has fast/slow heart rate notifications | Yes | Yes |
| Has a built-in camera remote control function | Yes | Yes |
| Connectivity | ||
| has NFC | Yes | Yes |
| SIM cards | 1 eSIM | — |
| Wi-Fi version | Wi-Fi 4 (802.11n) | Wi-Fi 5 (802.11ac), Wi-Fi 4 (802.11n) |
| supports ANT+ | No | No |
| supports Wi-Fi | Yes | Yes |
| supports Galileo | Yes | Yes |
| Bluetooth version | 5 | 5 |
| has a cellular module | Yes | No |
| Is compatible with iOS | No | Yes |
| 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 | 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 | No |
| Doesn’t require account | 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 | No |
| Tracks your sleep | Yes | Yes |
| Tracks steps taken | Yes | Yes |
| Designed for diving | No | No |
| Has a route tracker | Yes | 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 | Yes | Yes |
Wrist Fit
Samsung Galaxy Watch 4 - LTE · 44mm
Sits best on wrists ~46–62mm wide (≈ 12.3–16.6cm circumference).
Samsung Galaxy Watch Active2 - Aluminium · 44mm
Sits best on wrists ~46–63mm wide (≈ 12.3–16.8cm circumference).
Frequently Asked Questions
Is the Samsung Galaxy Watch 4 - LTE · 44mm bigger than the Samsung Galaxy Watch Active2 - Aluminium · 44mm?
The Samsung Galaxy Watch 4 - LTE · 44mm is bigger — 44.4mm vs 44mm case width.
Which fits a smaller wrist better, the Samsung Galaxy Watch 4 - LTE · 44mm or the Samsung Galaxy Watch Active2 - Aluminium · 44mm?
The Samsung Galaxy Watch 4 - LTE · 44mm suits wrists around 46–62mm wide, and the Samsung Galaxy Watch Active2 - Aluminium · 44mm around 46–63mm. The one with the smaller lower bound is the safer pick for a small wrist.
Can I see the Samsung Galaxy Watch 4 - LTE · 44mm and Samsung Galaxy Watch Active2 - Aluminium · 44mm 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.