Garmin Fenix 7S Pro Sapphire Solar vs Samsung Galaxy Watch8 - Wi-Fi · 44mmSize, Specs & Wrist Fit Compared
The Samsung Galaxy Watch8 - Wi-Fi · 44mm is 1.7mm wider, 4mm longer, 5.5mm thinner and 31g lighter than the Garmin Fenix 7S Pro Sapphire Solar. Both are circular.
Measured against the Garmin Fenix 7S Pro Sapphire Solar.
- Case width
- 42mmbaseFenix 7S Pro Sapphire Solar43.7mm+1.7mmGalaxy Watch8 - Wi-Fi · 44mm
- Lug-to-lug
- 42mmbaseFenix 7S Pro Sapphire Solar46mm+4mmGalaxy Watch8 - Wi-Fi · 44mm
- Thickness
- 14.1mmbaseFenix 7S Pro Sapphire Solar8.6mm−5.5mmGalaxy Watch8 - Wi-Fi · 44mm
- Weight
- 65gbaseFenix 7S Pro Sapphire Solar34g−31gGalaxy Watch8 - Wi-Fi · 44mm
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Garmin
Fenix 7S Pro Sapphire Solar
Samsung
Galaxy Watch8 - Wi-Fi · 44mm
Which one fits you
On wrists narrower than about 48mm, the Garmin Fenix 7S Pro Sapphire Solar is the safer pick — it stays proportionate down to roughly 44mm, where the Samsung Galaxy Watch8 - Wi-Fi · 44mm starts to hang over the edge. Above 48mm both sit cleanly, and the Samsung Galaxy Watch8 - Wi-Fi · 44mm gives you more presence.
The Samsung Galaxy Watch8 - Wi-Fi · 44mm wears larger than the Garmin Fenix 7S Pro Sapphire Solar (43.7mm vs 42mm case), giving it more wrist presence — and needing a wider wrist to sit cleanly.
The Samsung Galaxy Watch8 - Wi-Fi · 44mm is the slimmer of the two (8.6mm vs 14.1mm), so it slides under a cuff more easily.
On the wrist the Samsung Galaxy Watch8 - Wi-Fi · 44mm feels lighter (34g vs 65g, case only).
Among the 661 42mm watches we hold thickness for, the Garmin Fenix 7S Pro Sapphire Solar is thicker than 80% — it will sit high even though the case width reads modest.
Among the 303 44mm watches we hold thickness for, the Samsung Galaxy Watch8 - Wi-Fi · 44mm is thinner than 99%, so it wears flatter than its width suggests.
Specification Comparison
| Spec | GarminFenix 7S Pro Sapphire Solar | SamsungGalaxy Watch8 - Wi-Fi · 44mm |
|---|---|---|
| Case Width | 42mm | 43.7mm |
| Lug-to-Lug | 42mm | 46mm |
| Thickness | 14.1mm | 8.6mm |
| Weight | 65g | 34g |
| Shape | Circular | Circular |
| Water Resistance | 10 ATM | 5 ATM |
| GPS | Yes | Yes |
| Display type | LCD | OLED/AMOLED |
| Screen size | 1.2 inches | 1.47 inches |
| Always-On Display | Yes | Yes |
| Battery life | 14 days | 2 days |
| Has wireless charging | No | Yes |
| Has a removable battery | No | No |
| Has a solar power battery | Yes | No |
| Has a rechargeable battery | Yes | Yes |
| Has a battery level indicator | Yes | Yes |
| Released | 2023 | 2025 |
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.
- Garmin Fenix 7S Pro Sapphire Solar42mm · 14.1mm thick
- Samsung Galaxy Watch8 - Wi-Fi · 44mm43.7mm × 46mm · 8.6mm thick
Garmin Fenix 7S Pro Sapphire Solar vs Samsung Galaxy Watch8 - Wi-Fi · 44mm on a wrist
Put Garmin Fenix 7S Pro Sapphire Solar and Samsung Galaxy Watch8 - Wi-Fi · 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.
- Garmin Fenix 7S Pro Sapphire Solar — 42mm case, standing 14.1mm off the wrist.
- Samsung Galaxy Watch8 - Wi-Fi · 44mm — 43.7mm case, 46mm lug-to-lug, standing 8.6mm 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 Garmin Fenix 7S Pro Sapphire Solar lasts 7.0× as long as the Samsung Galaxy Watch8 - Wi-Fi · 44mm (14 days against 2 days).
Garmin Fenix 7S Pro Sapphire SolarSamsung Galaxy Watch8 - Wi-Fi · 44mm
Smartwatch
14 days2 daysGPS
46 hours—Training
7 hours—
Full Specification Comparison
124 specs| Spec | Garmin Fenix 7S Pro Sapphire Solar | Samsung Galaxy Watch8 - Wi-Fi · 44mm |
|---|---|---|
| Design | ||
| width | 42 | 43.7 |
| height | 42 | 46 |
| volume | 24.87 cm³ | 17.29 cm³ |
| weight | 65 g | 34 g |
| thickness | 14.1 | 8.6 |
| ATM rating | 10 ATM | 5 ATM |
| resolution | 240 x 240 px | 480 x 480 px |
| screen size | 1.2 inches | 1.47 inches |
| Display type | LCD | OLED/AMOLED |
| Has a display | Yes | Yes |
| pixel density | 282 ppi | 327 ppi |
| width of band | 20 mm | 20 mm |
| water resistance | Waterproof | Water resistant |
| Always-On Display | Yes | Yes |
| has a touch screen | Yes | Yes |
| is designed for kids | No | No |
| waterproof depth rating | 100 m | 50 m |
| Watch band is replaceable | Yes | Yes |
| Has sapphire glass display | Yes | Yes |
| has branded damage-resistant glass | No | No |
| maximum operating temperature | — | 35 °C |
| Ingress Protection (IP) rating | — | IP68 |
| lowest potential operating temperature | — | 0 °C |
| Battery | ||
| battery life | 14 days | 2 days |
| has wireless charging | No | Yes |
| has a removable battery | No | No |
| battery life with GPS on | 46 hours | — |
| Has a solar power battery | Yes | No |
| has a rechargeable battery | Yes | Yes |
| battery life in training mode | 7 hours | — |
| battery power | — | 435 mAh |
| 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 | Yes | Yes |
| Monitors blood oxygenation levels | Yes | Yes |
| Features | ||
| release date | 2023-05-31 | 2025-07-09 |
| 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 | Yes |
| internal storage | 32GB | 32GB |
| measures VO2 max | Yes | Yes |
| Has notifications | Yes | Yes |
| Has ECG technology | No | Yes |
| Locates your phone | Yes | Yes |
| has fall detection | Yes | Yes |
| has voice commands | No | Yes |
| Acquires GPS faster | Yes | Yes |
| Has vibrating alerts | Yes | Yes |
| shows readiness level | Yes | Yes |
| Can be used to answer calls | No | Yes |
| measures resting heart rate | Yes | Yes |
| has irregular heart rate warnings | No | Yes |
| has fast/slow heart rate notifications | Yes | Yes |
| Has a built-in camera remote control function | No | Yes |
| RAM | — | 2GB |
| Connectivity | ||
| has NFC | Yes | Yes |
| supports ANT+ | Yes | No |
| supports Wi-Fi | Yes | Yes |
| supports Galileo | Yes | Yes |
| has a cellular module | No | No |
| Is compatible with iOS | Yes | No |
| Is compatible with Android | Yes | Yes |
| Wi-Fi version | — | Wi-Fi 4 (802.11n) |
| Bluetooth version | — | 5.3 |
| Miscellaneous | ||
| Has auto pause | Yes | Yes |
| Available on PC | Yes | — |
| Can upload maps | Yes | — |
| Has trackback mode | Yes | — |
| Has a wind speed sensor | Yes | — |
| Is compatible with Windows | Yes | No |
| Is compatible with Mac OS X | Yes | No |
| has an external memory slot | No | No |
| Compatible with smart scales | Yes | Yes |
| has a battery level indicator | Yes | Yes |
| Provides the sunrise/sunset time | Yes | — |
| has a socket for a 3.5 mm audio jack | No | No |
| Informs about the risk of thunderstorms | Yes | — |
| Compatible with external heart rate monitors | Yes | Yes |
| Has passcode | — | Yes |
| App & Software | ||
| Ad-free | Yes | Yes |
| Free app | Yes | Yes |
| Tracks BMI | Yes | Yes |
| Has coaching | Yes | Yes |
| Includes maps | Yes | Yes |
| Supports routes | Yes | Yes |
| Has achievements | Yes | Yes |
| Has goal setting | Yes | Yes |
| Has live tracking | Yes | — |
| Has exercise diary | Yes | Yes |
| Predicts ovulation | Yes | — |
| Can be personalised | 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 | Yes | Yes |
| Doesn’t require account | No | — |
| Provides activity reports | Yes | Yes |
| Displays fertile window notifications | 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 | Yes | 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 | No |
| 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
Garmin Fenix 7S Pro Sapphire Solar
Sits best on wrists ~44–60mm wide (≈ 11.7–16.0cm circumference).
Samsung Galaxy Watch8 - Wi-Fi · 44mm
Sits best on wrists ~48–66mm wide (≈ 12.8–17.6cm circumference).
Frequently Asked Questions
Is the Garmin Fenix 7S Pro Sapphire Solar bigger than the Samsung Galaxy Watch8 - Wi-Fi · 44mm?
The Samsung Galaxy Watch8 - Wi-Fi · 44mm is bigger — 43.7mm vs 42mm case width.
Which fits a smaller wrist better, the Garmin Fenix 7S Pro Sapphire Solar or the Samsung Galaxy Watch8 - Wi-Fi · 44mm?
The Garmin Fenix 7S Pro Sapphire Solar suits wrists around 44–60mm wide, and the Samsung Galaxy Watch8 - Wi-Fi · 44mm around 48–66mm. The one with the smaller lower bound is the safer pick for a small wrist.
Can I see the Garmin Fenix 7S Pro Sapphire Solar and Samsung Galaxy Watch8 - Wi-Fi · 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.