Garmin Fenix 8 47mm Solar vs Venu X1
Size, specs & wrist fit compared
Which one fits you
Under 16.5 cm (6.5 in) round, the Fenix 8 47mm Solar's lugs overhang and the Venu X1's do not; the Venu X1 fills the wrist at 15–17 cm, the Fenix 8 47mm Solar at 17.5–19.5 cm.
What else differs
- Screen: the Venu X1 has the larger screen, 2.0 in across against 1.3 in on the Fenix 8 47mm Solar, and the Fenix 8 47mm Solar uses a memory-in-pixel screen that is easy to read in sunlight and sips battery, the Venu X1 a bright AMOLED screen.
- Battery: 21 days for the Fenix 8 47mm Solar against 8 days for the Venu X1 in everyday use; 2.8 days for the Fenix 8 47mm Solar against 16 hours for the Venu X1 with GPS on.
7.3mm thinner, the Venu X1 is the one that slides under a shirt cuff.
Among the 79 smartwatches 47mm across that we hold thickness for, the Fenix 8 47mm Solar is thicker than 87%, so it sits higher on the wrist than most of its size.
The Venu X1 is the thinnest of the 23 smartwatches 41mm across that we hold thickness for.
The Fenix 8 47mm Solar is 6mm wider and 7.3mm thicker than the Venu X1.
Fenix 8 47mm Solar
Venu X1
Fenix 8 47mm Solar or Venu X1 by wrist size
| Wrist round (mm left each side) | Fenix 8 47mm Solar≈54mm lug to lug, est. | Venu X1 |
|---|---|---|
| 14 cm / 5.5 in | Overhangs (4.4mm over) | Overhangs (0.4mm over) |
| 15 cm / 5.9 in | Overhangs (2.8mm over) | Bold (1.2mm) |
| 16 cm / 6.3 in | Overhangs (1.2mm over) | Sweet spot (2.8mm) |
| 17 cm / 6.7 in | Bold (0.4mm) | Balanced (4.4mm) |
| 18 cm / 7.1 in | Sweet spot (2mm) | Balanced (6mm) |
| 19 cm / 7.5 in | Sweet spot (3.6mm) | Balanced (7.6mm) |
| 20 cm / 7.9 in | Balanced (5.3mm) | Balanced (9.3mm) |
Switch or add watches
Garmin
Fenix 8 47mm Solar
Garmin
Venu X1
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Battery life compared
Fenix 8 47mm SolarVenu X1
Battery saver
34 days +58 days11 daysExpedition
34 days +58 days—Smartwatch
21 days +28 days8 daysMax battery GPS
132 hours +283 hours—GPS only
67 hours +92 hours16 hoursAll systems
48 hours +59 hours14 hoursAll systems + multi-band
37 hours +43 hours—All systems with music
13 hours7 hours
Amber figures are the solar-assisted runtime the manufacturer publishes for that mode.
More comparisons
2D Dimension Schematics
- Garmin Fenix 8 47mm Solar 47mm × ≈54mm (est.) · 15.2mm thick
- Garmin Venu X1 41mm × 46mm · 7.9mm thick
3D preview
Fenix 8 47mm Solar vs Venu X1 on a wrist
Specifications
The short version
7 key specs| Spec | GarminFenix 8 47mm Solar | GarminVenu X1 |
|---|---|---|
| Case Width | 47mm | 41mm |
| Lug-to-Lug | 47mm | 46mm |
| Thickness | 15.2mm | 7.9mm |
| Shape | Circular | Rectangle |
| Display type | Sunlight-visible, transflective memory-in-pixel (MIP) | AMOLED (optional always-on mode) |
| Battery life | Smartwatch: Up to 21 days/28 days with solar* Battery Saver Watch Mode: Up to 34 days/58 days with solar* GPS Only: Up to 67 hours/92 hours with solar** All Satellite Systems: Up to 48 hours/59 hours with solar** All Satellite Systems + Multi-band: Up to 37 hours/43 hours with solar*** All Satellite Systems + Music: Up to 13 hours Max Battery GPS: Up to 132 hours/283 hours with solar** Expedition GPS: Up to 34 days/58 days with solar* *Solar charging, assuming all-day wear with 3 hours per day outside in 50,000 lux conditions **Solar charging, assuming use in 50,000 lux conditions ***Solar charging, assuming use in 50,000 lux conditions; assuming typical use with SatIQ technology | Smartwatch mode: Up to 8 days (2 days display always-on) Battery Saver Smartwatch mode: Up to 11 days GPS-Only GNSS mode: Up to 16 hours All-Systems GNSS mode: Up to 14 hours All-Systems GNSS mode with music: Up to 7 hours See Details |
| Released | 2024 | 2025 |
Where the specifications differ
10 differences| Spec | Garmin Fenix 8 47mm Solar | Garmin Venu X1 |
|---|---|---|
| General | ||
| Battery life | Smartwatch: Up to 21 days/28 days with solar* Battery Saver Watch Mode: Up to 34 days/58 days with solar* GPS Only: Up to 67 hours/92 hours with solar** All Satellite Systems: Up to 48 hours/59 hours with solar** All Satellite Systems + Multi-band: Up to 37 hours/43 hours with solar*** All Satellite Systems + Music: Up to 13 hours Max Battery GPS: Up to 132 hours/283 hours with solar** Expedition GPS: Up to 34 days/58 days with solar* *Solar charging, assuming all-day wear with 3 hours per day outside in 50,000 lux conditions **Solar charging, assuming use in 50,000 lux conditions ***Solar charging, assuming use in 50,000 lux conditions; assuming typical use with SatIQ technology | Smartwatch mode: Up to 8 days (2 days display always-on) Battery Saver Smartwatch mode: Up to 11 days GPS-Only GNSS mode: Up to 16 hours All-Systems GNSS mode: Up to 14 hours All-Systems GNSS mode with music: Up to 7 hours See Details |
| Display Size | 1.3” (33.00 mm) diameter | 2" (51.2 mm) diagonal; 1,304 sq mm display area |
| Case material | fiber-reinforced polymer with metal rear cover | fiber-reinforced polymer with titanium caseback |
| Strap material | silicone | nylon |
| Display resolution | 260 x 260 pixels | 448 x 486 pixels |
| What You'll Love | ||
| Display type | Sunlight-visible, transflective memory-in-pixel (MIP) | AMOLED (optional always-on mode) |
| Water rating | 10 ATM | Swim, 5 ATM |
| Pulse Ox blood oxygen | Yes | yes (spot-check, and optional all-day and in sleep) |
| Battery life (smartwatch mode) | Up to 21 days (28 days with solar) | Up to 8 days |
| Make calls and send texts via voice | Yes | yes (with paired compatible smartphone) |
The other 25 specifications both list are identical.
Full Garmin Fenix 8 47mm Solar specifications →Full Garmin Venu X1 specifications →