Garmin Fenix 7S Solar vs Fenix 7X Solar
Size, specs & wrist fit compared
Which one fits you
Under 18 cm (7.1 in) round, the 51mm's lugs overhang and the 42mm's do not; the 42mm fills the wrist at 16–17.5 cm, the 51mm at 19 cm and up.
What else differs
- Screen: the 51mm has the larger screen, 1.4 in across against 1.2 in on the 42mm.
- Battery: 37 days for the 51mm against 14 days for the 42mm in everyday use; 6.8 days for the 42mm against 5.1 days for the 51mm with GPS on.
Among the 52 smartwatches 51mm across that we hold thickness for, the Fenix 7X Solar is thinner than 87%, so it wears flatter than its width suggests.
The Fenix 7X Solar is 9mm wider, 0.8mm thicker and 33g heavier than the Fenix 7S Solar.
Fenix 7S Solar
Fenix 7X Solar
Fenix 7S Solar: 42mm or 51mm by wrist size
| Wrist round (mm left each side) | 42mm≈48.5mm lug to lug, est. | 51mm≈58.5mm lug to lug, est. |
|---|---|---|
| 14 cm / 5.5 in | Overhangs (1.7mm over) | Overhangs (6.7mm over) |
| 15 cm / 5.9 in | Overhangs (0.1mm over) | Overhangs (5.1mm over) |
| 16 cm / 6.3 in | Sweet spot (1.6mm) | Overhangs (3.4mm over) |
| 17 cm / 6.7 in | Sweet spot (3.2mm) | Overhangs (1.8mm over) |
| 18 cm / 7.1 in | Balanced (4.8mm) | Overhangs (0.2mm over) |
| 19 cm / 7.5 in | Balanced (6.4mm) | Bold (1.4mm) |
| 20 cm / 7.9 in | Balanced (8mm) | Sweet spot (3mm) |
Switch or add watches
Garmin
Fenix 7S Solar
Garmin
Fenix 7X Solar
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Battery life compared
7S Solar7X Solar
Battery saver
—90 daysSmartwatch
14 days37 daysGPS only
162 hours122 hoursHeavy use
—77 hours
2D Dimension Schematics
- Garmin Fenix 7S Solar 42mm × ≈48.5mm (est.) · 14.1mm thick
- Garmin Fenix 7X Solar 51mm × ≈58.5mm (est.) · 14.9mm thick
3D preview
Fenix 7S Solar vs Fenix 7X Solar on a wrist
Specifications
The short version
10 key specs| Spec | GarminFenix 7S Solar | GarminFenix 7X Solar |
|---|---|---|
| Case Width | 42mm | 51mm |
| Thickness | 14.1mm | 14.9mm |
| Weight | 63g | 96g |
| Shape | Circular | Circular |
| Water Resistance | 10 ATM | 10 ATM |
| GPS | Yes | Yes |
| Display type | LCD | LCD |
| Screen size | 1.2 inches | 1.4 inches |
| Battery life | 14 days | 37 days |
| Released | 2022 | 2022 |
Where the specifications differ
14 differences| Spec | Garmin Fenix 7S Solar | Garmin Fenix 7X Solar |
|---|---|---|
| Design | ||
| width | 42 | 51 |
| height | 42 | 51 |
| volume | 24.87 cm³ | 38.75 cm³ |
| weight | 63 g | 96 g |
| thickness | 14.1 | 14.9 |
| resolution | 240 x 240 px | 280 x 280 px |
| screen size | 1.2 inches | 1.4 inches |
| width of band | 20 mm | 26 mm |
| has branded damage-resistant glass | No | Yes |
| Battery | ||
| battery life | 14 days | 37 days |
| battery life with GPS on | 162 hours | 122 hours |
| battery life in training mode | 7 hours | 77 hours |
| Features | ||
| Has smart alarm | No | Yes |
| Miscellaneous | ||
| Has a wind speed sensor | Yes | No |
The other 101 specifications both list are identical.
Full Garmin Fenix 7S Solar specifications →Full Garmin Fenix 7X Solar specifications →