Garmin Fenix 7 Pro Sapphire Solar vs Samsung Galaxy Watch8 LTE ClassicSize, Specs & Wrist Fit Compared
The Garmin Fenix 7 Pro Sapphire Solar is 0.6mm wider, 0.6mm longer, 3.9mm thicker and 9.5g heavier than the Samsung Galaxy Watch8 LTE Classic. Both are circular.
Measured against the Garmin Fenix 7 Pro Sapphire Solar.
- Case width
- 47mmbaseFenix 7 Pro Sapphire Solar46.4mm−0.6mmGalaxy Watch8 LTE Classic
- Lug-to-lug
- 47mmbaseFenix 7 Pro Sapphire Solar46.4mm−0.6mmGalaxy Watch8 LTE Classic
- Thickness
- 14.5mmbaseFenix 7 Pro Sapphire Solar10.6mm−3.9mmGalaxy Watch8 LTE Classic
- Weight
- 73gbaseFenix 7 Pro Sapphire Solar63.5g−9.5gGalaxy Watch8 LTE Classic
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Garmin
Fenix 7 Pro Sapphire Solar
Samsung
Galaxy Watch8 LTE Classic
Which one fits you
Both need much the same wrist — roughly 49–67mm across the flat of the wrist. Neither will fit where the other won't, so decide on thickness, weight and features instead.
The Garmin Fenix 7 Pro Sapphire Solar wears larger than the Samsung Galaxy Watch8 LTE Classic (47mm vs 46.4mm case), giving it more wrist presence — and needing a wider wrist to sit cleanly.
The Samsung Galaxy Watch8 LTE Classic is the slimmer of the two (10.6mm vs 14.5mm), so it slides under a cuff more easily.
On the wrist the Samsung Galaxy Watch8 LTE Classic feels lighter (63.5g vs 73g, case only).
The Garmin Fenix 7 Pro Sapphire Solar is middle-of-the-pack for thickness among the 98 47mm watches in the database.
Among the 158 46mm watches we hold thickness for, the Samsung Galaxy Watch8 LTE Classic is thinner than 97%, so it wears flatter than its width suggests.
Specification Comparison
| Spec | GarminFenix 7 Pro Sapphire Solar | SamsungGalaxy Watch8 LTE Classic |
|---|---|---|
| Case Width | 47mm | 46.4mm |
| Thickness | 14.5mm | 10.6mm |
| Weight | 73g | 63.5g |
| Shape | Circular | Circular |
| Water Resistance | 10 ATM | 5 ATM |
| GPS | Yes | Yes |
| Display type | LCD | OLED/AMOLED |
| Screen size | 1.3 inches | 1.34 inches |
| Always-On Display | Yes | Yes |
| Battery life | 22 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 7 Pro Sapphire Solar47mm · 14.5mm thick
- Samsung Galaxy Watch8 LTE Classic46.4mm · 10.6mm thick
Garmin Fenix 7 Pro Sapphire Solar vs Samsung Galaxy Watch8 LTE Classic on a wrist
Put Garmin Fenix 7 Pro Sapphire Solar and Samsung Galaxy Watch8 LTE Classic 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 7 Pro Sapphire Solar — 47mm case, standing 14.5mm off the wrist.
- Samsung Galaxy Watch8 LTE Classic — 46.4mm case, standing 10.6mm 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 7 Pro Sapphire Solar lasts 11.0× as long as the Samsung Galaxy Watch8 LTE Classic (22 days against 2 days).
Garmin Fenix 7 Pro Sapphire SolarSamsung Galaxy Watch8 LTE Classic
Smartwatch
22 days2 daysGPS
73 hours—Training
10 hours—
Full Specification Comparison
125 specs| Spec | Garmin Fenix 7 Pro Sapphire Solar | Samsung Galaxy Watch8 LTE Classic |
|---|---|---|
| Design | ||
| width | 47 | 46.4 |
| height | 47 | 46.4 |
| volume | 32.03 cm³ | 22.82 cm³ |
| weight | 73 g | 63.5 g |
| thickness | 14.5 | 10.6 |
| ATM rating | 10 ATM | 5 ATM |
| resolution | 260 x 260 px | 438 x 438 px |
| screen size | 1.3 inches | 1.34 inches |
| Display type | LCD | OLED/AMOLED |
| Has a display | Yes | Yes |
| pixel density | 282 ppi | 327 ppi |
| width of band | 22 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 | 22 days | 2 days |
| has wireless charging | No | Yes |
| has a removable battery | No | No |
| battery life with GPS on | 73 hours | — |
| Has a solar power battery | Yes | No |
| has a rechargeable battery | Yes | Yes |
| battery life in training mode | 10 hours | — |
| battery power | — | 445 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 | 64GB |
| measures VO2 max | Yes | Yes |
| Has notifications | Yes | Yes |
| Has ECG technology | Yes | 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 | Yes | 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 | Yes |
| Is compatible with iOS | Yes | No |
| Is compatible with Android | Yes | Yes |
| SIM cards | — | 1 eSIM |
| 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 | No | — |
| 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 7 Pro Sapphire Solar
Sits best on wrists ~49–67mm wide (≈ 13.1–17.9cm circumference).
Samsung Galaxy Watch8 LTE Classic
Sits best on wrists ~49–66mm wide (≈ 13.1–17.6cm circumference).
Frequently Asked Questions
Is the Garmin Fenix 7 Pro Sapphire Solar bigger than the Samsung Galaxy Watch8 LTE Classic?
The Garmin Fenix 7 Pro Sapphire Solar is bigger — 47mm vs 46.4mm case width.
Which fits a smaller wrist better, the Garmin Fenix 7 Pro Sapphire Solar or the Samsung Galaxy Watch8 LTE Classic?
The Garmin Fenix 7 Pro Sapphire Solar suits wrists around 49–67mm wide, and the Samsung Galaxy Watch8 LTE Classic around 49–66mm. The one with the smaller lower bound is the safer pick for a small wrist.
Can I see the Garmin Fenix 7 Pro Sapphire Solar and Samsung Galaxy Watch8 LTE Classic 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.